• wysin@phys.ksu.edu Homepage.
• Physics Research Topics.
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Future Publications

Publications in Print

92. ``Metastability and dynamics in remanent states of square artificial spin ice with long-range dipole interactions,'' G.M. Wysin,
Phys. Rev. B 108, 174405 (2023) [16 pages].     Preprint: rs-modes23.pdf (350 kB) ,     arXiv:2308.01985 .

91. ``Metastability and dynamic modes in magnetic island chains,'' G.M. Wysin,
J. Phys.: Condens. Matter {\bf 34}, 065803 (2022) [13 pages].     Preprint: island-chain22.pdf (0.7 MB) ,     arXiv:2310.15350 .

90. ``Magnetic oscillation modes in square lattice artificial spin ice,''
Thomas D. Lasnier and G.M. Wysin,
Phys. Rev. B 101, 224428 (2020) [11 pages].     Preprint: icemodes20.pdf (0.8 MB) ,     arXiv:2001.10409 .
See examples of the four mode oscillations of the spins surrounding a vertex in a ground state.

89. ``Magnetic chiral solitons stabilized by Oersted field at a thin-film nanocontact with electric current,''
C.E. Zaspel, G.M. Wysin and B.A. Ivanov,
Ukranian J. Phys. {\bf 64}, No. 10, 933--937 (special issue for Gennady Melkov's 80th birthday, 2019) [5 pages].     Article: ZaspelWysinIvanov_UJPhys2019.pdf (616 kB) .

88. ``Realization of rectangular artificial spin ice and direct observation of high energy topology,''
I.R.B. Ribeiro, F.S. Nascimento, S.O. Ferreira, W.A. Moura-Melo, C.A.R. Costa, J. Borme, P.P. Freitas, G.M. Wysin, C.I.L. de Araujo and A.R. Pereira,
Scientific Reports 7, 13982 (2017) [9 pages, open access].     Preprint: rede17.pdf (2.5 MB) .

87. ``Magnetic vortex dynamics in the non-circular potential of a thin elliptic ferromagnetic nanodisk with applied fields,'' G.M. Wysin,
AIMS Materials Science, 4(2), 421--438 (2017) [18 pages, open access].     Preprint: vort-ds16.pdf (788 kB) .

86. ``Statistics of gyrotropic vortex dynamics in sub-micron magnetic disks,'' G.M. Wysin,
Chapter 9 in open access book,   Vortex Structures in Fluid Dynamic Problems,
edited by Hector Pérez de Tejada, published as hardcover and online by InTech, Rijeka, Croatia (2017).     Preprint:   vort-dyn16.pdf (1.5 MB).

85. Magnetic Excitations & Geometric Confinement: Theory and Simulations,
Gary Matthew Wysin, an IOP Expanding Physics ebook.   Published December 2015.   See an overview here.

84. ``Vortex dynamics in thin elliptic ferromagnetic nanodisks,'' G.M. Wysin.
in a Special issue of the Journal of Low Temperature Physics,
"80 years of the Landau-Lifshitz equation," Guest Editors B.A.Ivanov and A.S. Kovalev,
Low Temp. Phys. (Fizika Nizkikh Temperatur) 41, No. 10, 1009--1023 (2015) [15 pages].     Preprint: evmotion15.pdf (0.5 MB).

83. ``Order and thermalized dynamics in Heisenberg-like square and Kagomé spin ices,''
G.M. Wysin, A. R. Pereira, W. A. Moura-Melo and C.I.L. de Araujo.     An IOP Select Article.
J. Phys.: Condens. Matter 27 (7), 076004 (2015) [16 pages].     Preprint: kagomeice14.pdf (2 MB).

82. ``Edge effects in vortex-based nanocontact oscillators,''
C.E. Zaspel and G.M. Wysin,
Phys. Rev. B 90, 214414 (2014) [8 pages].     Preprint: vedge14.pdf (3 MB).

81. ``Effects of interband transitions on Faraday rotation in metallic nanoparticles,''
G.M. Wysin, Viktor Chikan, Nathan Young and Raj Kumar Dani.     An IOP Select Article.
J. Phys.: Condens. Matter 25, 325302 (2013) [16 pages].     Preprint: interband13.pdf (390 kB),     arXiv:1305.1252 .

80. ``Dynamics and hysteresis in square lattice artificial spin ice,''
G.M. Wysin, W.A. Moura-Melo, L.A.S. Mól and A.R. Pereira,
New J. Phys. 15, 045029 (2013) [24 pages].     Preprint: squareice13.pdf (916 kB),   arXiv:1208.6557 .

79. ``Nambu monopoles interacting with lattice defects in two-dimensional artificial square spin ice,''
R.C. Silva, R.J.C. Lopes, L.A.S. Mól, W.A. Moura-Melo, G.M. Wysin and A.R. Pereira,
Phys. Rev. B 87, 014414 (2013) [7 pages].     Preprint: ice_defects12.pdf (1.5 MB).

78. Statistical Thermodynamics -- Understanding the Properties of Macroscopic Systems,
Lukong Cornelius Fai and Gary Matthew Wysin, graduate level text,
ISBN: 978-1-4665-1067-8, 548 pages, (CRC Press, Taylor & Francis Group, Boca Raton, Florida, October, 2012).
See an overview here.

77. ``Thermal vortex dynamics in thin circular ferromagnetic nanodisks,''
G.M. Wysin and W. Figueiredo,
Phys. Rev. B 86, 104421 (2012) [16 pages].     Preprint: vmotion12.pdf (663 kB),   arXiv:1207.2192 .

76. ``Magnetic anisotropy of elongated thin ferromagnetic nano-islands for artificial spin ice arrays,''
G.M. Wysin, W.A. Moura-Melo, L.A.S. Mól and A.R. Pereira,
J. Phys.: Condens. Matter 24, 296001 (2012) [8 pages].     Preprint: elliptic12.pdf (262 kB).   arXiv:1112.0913 .

75. ``Faraday rotation enhancement of gold coated Fe₂O₃ nanoparticles: Comparison of experiment and theory,''
Raj Kumar Dani, Hongwang Wang, Stefan Bossman, Gary Wysin and Viktor Chikan, article and supplemental materials,
J. Chem. Phys. 135, 224502 (2011) [9 pages].     Preprint: faraday10.pdf (5.4 MB);     Supplemental Material: faraday10SM.pdf (2.2 MB).

74. ``Vortex-in-nanodot potentials in thin circular magnetic dots,'' G. M. Wysin,
J. Phys.: Condens. Matt. 22, 376002 (2010) [16 pages].     Preprint: vx09.pdf (290 kB).

73. ``Influence of a perpendicular current on the circulation of a pinned magnetic vortex,'' G. M. Wysin, [19 pages],
in Electromagnetic, Magnetostatic and Exchange Interaction Vortices in Confined Magnetic Structures,
Special Review Book edited by Eugene Kamenetskii (Research Signpost, India 2009).     Preprint: hole-vortex08.pdf (1.0 MB).

72. ``The Berezinskii-Kosterlitz-Thouless phase transition for the dilute planar rotator model on a triangular lattice,''
Yun-Zhou Sun, Lin Yi and G. M. Wysin,
Phys. Rev. B 78, 155409 (2008) [5 pages].     Preprint: BKT-tri08.pdf (1.1 MB).

71. ``Hole-vortex-magnons interactions in diluted layered antiferromagnets with planar symmetry,'' A. R. Pereira and G. M. Wysin,
Phys. Rev. B 73, 214402 (2006) [16 pages].     Preprint: zipped RevTex (290 kB); afhole06.pdf (940 kB).

70. ``Electromagnetic modes in dielectric equilateral triangle resonators,'' G. M. Wysin,
J. Opt. Soc. Amer. B 23, 1586-1599 (2006) [14 pages].     Preprint: zipped RevTeX (1.0 MB); dieETR05.pdf (8.0 MB),   arXiv:physics/0507015 .

69. ``Contribution of impurity-pinned vortices to the response function in a randomly diluted easy-plane ferromagnet on a square lattice,''
Fagner M. Paula, Afranio R. Pereira and Gary M. Wysin,
Phys. Rev. B 72, 094425 (2005) [5 pages].     Preprint: correlation05.pdf (150 kB).

68. ``Extinction of the Berezinskii-Kosterlitz-Thouless phase transition by nonmagnetic disorder in planar-symmetry spin models,''
G.M. Wysin, I.A. Marques, S.A. Leonel, P.Z. Couro and A.R. Pereira,
Phys. Rev. B 72, 094418 (2005) [10 pages].     Preprint: zipped RevTeX (180 kB); vacTc05.pdf (800 kB).

67. ``Resonant mode lifetimes due to boundary wave emission in equilateral triangular dielectric cavities,'' G.M. Wysin,
J. Opt. A: Pure Appl. Opt. 7, 502-509 (2005) [8 pages].     Preprint: zipped RevTeX (98 kB); triTAU05.pdf (290 kB).

66.``Vacancy effects in an easy-plane Heisenberg model: Reduction of T_c and doubly-charged vortices,'' G.M. Wysin,
Phys. Rev. B 71, 094423 (2005) [11 pages].     Preprint: zipped RevTeX (153 kB); vacmc04.pdf (1 MB),   arXiv:cond-mat/0411205 .

65.``Amplitudes for magnon scattering by vortices in two-dimensional weakly easy-plane ferromagnets,''
Denis D. Sheka, Ivan A. Yastremsky, Boris A. Ivanov, Gary M. Wysin and Franz G. Mertens,
Phys. Rev. B 69, 054429 (2004) [13 pages].     Preprint: zipped RevTeX (62 kB); denis03.pdf (371 kB).

64. ``Vortex--vacancy interactions in two-dimensional easy-plane magnets,'' G.M. Wysin,
Phys. Rev. B 68, 184411 (2003) [11 pages].     Preprint: zipped RevTeX (73 kB); v-v03.pdf (420 kB),   arXiv:cond-mat/0307448 .

63. ``Magnon modes for a circular two-dimensional easy-plane ferromagnet in the cone state,'' B.A. Ivanov and G.M. Wysin,
Phys. Rev. B 65, 134434 (2002) [17 pages].     Preprint: zipped RevTeX (800 kB); cone01.pdf (1.2 MB).

62. ``Relaxation schemes for normal modes of magnetic vortices: Application to the scattering matrix,'' G.M. Wysin,
Phys. Rev. B 63, 94402 (2001) [14 pages].     Preprint: zipped RevTeX (78 kB). taueig00.pdf (366 kB),   arXiv:cond-mat/0008239 .

61. ``Spinwave damping in the two-dimensional ferromagnetic XY model,'' G.M. Wysin, M.E. Gouvêa and A.S.T. Pires,
Phys. Rev. B 62, 11585 (2000) [15 pages].     Preprint: zipped RevTeX (450 kB). Gamma00.pdf (2.4 MB),   arXiv:cond-mat/9912241 .

60. ``Onsager reaction-field theory for magnetic models on diamond and hcp lattices,'' G.M. Wysin,
Phys. Rev. B 62, 3251 (2000) [8 pages].     Preprint: zipped RevTeX (27 kB); orf2000.pdf (220 kB)m   arXiv:cond-mat/9909266 .

59. ``Correlated molecular-field theory for Ising models,'' G.M. Wysin and J. Kaplan,
Phys. Rev. E 61, 6399 (2000) [5 pages].     Preprint: zipped RevTeX (71 kB); modmf00.pdf (120 kB).

58. ``Low temperature static and dynamic behavior of the two-dimensional easy axis Heisenberg model,''
M.E. Gouvêa, G.M. Wysin, S. A. Leonel, A.S.T. Pires, T. Kamppeter and F.G. Mertens,
Phys. Rev. B 59, 6229-6238 (1999) [10 pages].     Preprint: zipped RevTeX (130 kB); easy98.pdf (500 kB).

57. ``Magnon modes and magnon-vortex scattering in 2D easy-plane ferromagnets,''
B.A. Ivanov, H.-J. Schnitzer, F.G. Mertens and G.M. Wysin,
Phys. Rev. B 58, 8464 (1998) [11 pages].     Preprint: zipped RevTeX (54 kB); magnon98.pdf (270 kB),   arXiv:cond-mat/9805177 .

56. ``Onsager reaction field theory for 3d anisotropic xy model,'' M.E. Gouvêa, A.S.T. Pires and G.M. Wysin,
Phys. Rev. B 58, 2399 (1998) [4 pages].     Preprint: zipped RevTeX (24 kB); brief98.pdf (144 kB).

55. ``Free vortex and vortex-pair lifetimes in classical two-dimensional easy-plane magnets,'' D.A. Dimitrov and G.M. Wysin,
J. Phys. C 10, 7453 (1998) [13 pages].     Preprint: zipped RevTeX (27 kB); life98.pdf (170 kB).

54. ``Localized magnon mode of in-plane magnetic vortices in easy-plane magnets,'' G.M. Wysin, M.E. Gouvêa and A.S.T. Pires,
Phys. Rev. B 57, 8274 (1998) [11 pages].  ;   Preprint: zipped RevTeX (65 kB); critm97.pdf (250 kB).

53. ``Critical anisotropies of two-dimensional magnetic vortices,'' G.M. Wysin,
Phys. Lett. A 240, 95 (1998) [5 pages].     Preprint: zipped elsart LaTeX (70 kB); crit97.pdf (120 kB).

52. ``Comment on `Static and dynamic simulation in the classical two-dimensional anisotropic Heisenberg model','' M.E. Gouvêa and G.M. Wysin,
Phys. Rev. B 56, 14192 (1997) [3 pages].     Preprint: zipped RevTeX (30 kB); prcom96.pdf (128 kB).

51. ``Numerical study of vortices in a two-dimensional XY model with in-plane magnetic field,'' M.E. Gouvêa, G.M. Wysin and A.S.T. Pires,
Phys. Rev. B 55, 14144 (1997) [4 pages].     Preprint: zipped RevTeX (115 kB); 2dxyb96.pdf (186 kB).

50. ``Magnetic vortex mass in 2D easy-plane magnets,'' G.M. Wysin,
Phys. Rev. B 54, 15156 (1996) [7 pages].     Preprint: zipped RevTeX (82 kB); vmass96.pdf (250 kB).

49. ``Comparison of vortex normal modes in easy-plane ferromagnets and antiferromagnets,'' G.M. Wysin and A.R. V\"okel,
Phys. Rev. B 54, 12921. (1996) [11 pages].     Preprint: zipped RevTeX (402 kB); afmodes96.pdf (860 kB).

48. ``Magnetic properties of superparamagnetic particles by a Monte Carlo method,'' D.A. Dimitrov and G.M. Wysin,
Phys. Rev. B 54, 9237 (1996) [5 pages].     Preprint: zipped RevTeX (52 kB); spara96.pdf (219 kB).

47. ``Lifetime of vortices in 2D easy-plane ferromagnets,'' D.A. Dimitrov and G.M. Wysin,
Phys. Rev. B 53, 8539 (1996) [4 pages].     Preprint: html or zipped RevTeX (51 kB) or life_pre.pdf (176 kB).

46. ``Normal modes and soliton resonance for vortices in 2D classical antiferromagnets,'' B.A. Ivanov, A.K. Kolezhuk and G.M. Wysin,
Phys. Rev. Lett. 76, 511 (1996) [4 pages].     Preprint: html or zipped RevTeX (74 kB) or lm95.pdf (228 kB).

45. ``Normal modes of vortices in easy-plane ferromagnets,'' G.M. Wysin and A.R. Völkel,
Phys. Rev. B 52, 7412 (1995) [16 pages].     Preprint: (html) or zipped LaTeX (411 kB) or fmodes95.pdf (820 kB).

44.``Magnetic properties of spherical fcc clusters with radial surface anisotropy,'' D.A. Dimitrov and G.M. Wysin,
Phys. Rev. B 51, 11,947 (1995) [4 pages].     Preprint: zipped RevTeX (90 kB); fine94.pdf (620 kB).

43. ``Collective variable approach to the dynamics of non-linear magnetic excitations with application to vortices,''
A.R. Völkel, G.M. Wysin, F.G. Mertens, A.R. Bishop and H.J. Schnitzer,
Phys. Rev. B 50, 12711 (1994) [10 pages].     Preprint: collectvar94.pdf (2.0 MB).

42. ``Effects of surface anisotropy on hysteresis in fine magnetic particles,'' D.A. Dimitrov and G.M. Wysin,
Phys. Rev. B 50, 3077 (1994) [8 pages].     Preprint: zipped RevTeX (175 kB); effects94.pdf (870 kB).

41. ``Instability of in-plane vortices in two-dimensional easy-plane ferromagnets,'' G.M. Wysin,
Phys. Rev. B 49, 8780 (1994) [10 pages].     Preprint: zipped TeX (57 kB); vort94.pdf (206 kB).

40. ``Collective variable approach for a magnetic n-vortex system,''
A. R. Völkel, F. G. Mertens, G. M. Wysin, A. R. Bishop and H. J. Schnitzer,
Proceedings of Workshop at University of Bayreuth, Germany, June 1-4, 1993, Nonlinear Coherent Structures in Physics and Biology, p. 199,
(Plenum Press, New York, 1994) [8 pages].     Preprint: collective94.pdf (1.3 MB).

39. ``Cyclotron-like oscillations and boundary effects in the 2-vortex dynamics of easy-plane magnets,''
F. G. Mertens, G. M. Wysin, A. R. Völkel, A. R. Bishop and H. J. Schnitzer,
Proceedings of Workshop at University of Bayreuth, Germany, June 1-4, 1993, Nonlinear Coherent Structures in Physics and Biology, p. 191,
(Plenum Press, New York, 1994) [7 pages].     Preprint: cyclotron94.pdf (1.1 MB).

38. ``Mass and momentum for vortices in two-dimensional easy-plane magnets,''
G.M. Wysin, F.G. Mertens, A.R. Völkel and A.R. Bishop,
Proceedings of Workshop at University of Bayreuth, Germany, June 1-4, 1993, Nonlinear Coherent Structures in Physics and Biology, p. 177,
(Plenum Press, New York, 1994) [10 pages].     Preprint: mass94.pdf (1.7 MB).

37. ``Spin dynamics for 2D Heisenberg antiferromagnets with combined easy-plane and Dzyaloshinsky interactions,''
A.R. Völkel, F.G. Mertens, A.R. Bishop and G.M. Wysin,
Annalen der Physik, 505, Issue 3, 308-319, (1993) [12 pages].     Preprint: spindyn93.pdf (1.2 MB).

36. ``A one-dimensional statistical mechanics model with exact transfer integral solution,'' G.M. Wysin,
Amer. J. Phys. 61, 734 (1993) [7 pages].     Preprint: zipped TeX (23 kB); bspin93.pdf (145 kB).

35. ``Dynamics of vortices in quasi-two-dimensional classical Heisenberg magnets with weak easy-plane anisotropy,''
A.R. Völkel, A.R. Bishop, F.G. Mertens and G.M. Wysin,
J. Phys.: Condens. Matter 4, 9411 (1992) [12 pages].

34. ``Vortex dynamics in the classical two-dimensional antiferromagnetic $XY$ model,''
A.R. Völkel, F.G. Mertens, G.M. Wysin and A.R. Bishop,
J. Magn. Magn. Mater. 104-107, 766 (1992) [3 pages].

33. ``Reply to Comment on `Dynamic correlations in a classical two-dimensional Heisenberg antiferromagnet' ,''
G.M. Wysin and A.R. Bishop,
Phys. Rev. B 45, 10,812 (1992) [2 pages].

32. ``Central peak signatures from vortices in 2-D easy-plane antiferromagnets,''
F.G. Mertens, A.R. Völkel, G.M. Wysin and A.R. Bishop,
Proceedings of Workshop at Dijon, France, June 4--6, 1991, Nonlinear Coherent Structures in Physics and Biology,
edited by M. Remoissenet and M. Peyrard (Springer-Verlag Berlin, Heidelberg 1991),
Lecture Notes in Physics, Vol. 393, 15 (1991) [8 pages].     Preprint: centralpeak91.pdf (1.2 MB).

31. ``Equations of motion for vortices in 2-D easy-plane magnets,'' G.M. Wysin and F.G. Mertens,
Proceedings of Workshop at Dijon, France, June 4--6, 1991, Nonlinear Coherent Structures in Physics and Biology,
edited by M. Remoissenet and M. Peyrard (Springer-Verlag Berlin, Heidelberg 1991),
Lecture Notes in Physics, Vol. 393, 1 (1991) [14 pages].     Preprint: equations91.pdf (1.9 MB).

30. ``Dynamic correlations in the classical two-dimensional antiferromagnetic Heisenberg model with easy-plane symmetry,''
A.R. Völkel, G.M. Wysin, A.R. Bishop and F.G. Mertens,
Phys. Rev. B 44, 10,066 (1991) [13 pages].     Preprint: easyAF91.pdf (2.1 MB).

29. ``Motion of vortex pairs in the ferromagnetic and antiferromagnetic anisotropic Heisenberg models,''
A.R. Völkel, F.G. Mertens, A.R. Bishop and G.M. Wysin,
Phys. Rev. B 43, 5992 (1991) [14 pages].     Preprint: motion91.pdf (2.5 MB).

28. ``Dynamic scaling in the two-dimensional Heisenberg antiferromagnet,'' G.M. Wysin and A.R. Bishop,
Proceedings of Forum at Florence, Italy, June 7-13, 1990, Microscopic Aspects of Nonlinearity in Condensed Matter,
edited by A.R. Bishop, V.L. Pokrovsky and V. Tognetti (Plenum Press, New York 1991),
NATO ASI Series, Vol. 264, 353 (1991) [4 pages].     Preprint: dynamicscaling91.pdf (887 kB).

27. ``On the motion of vortex pairs in the anisotropic Heisenberg model,'' A.R. Völkel, F.G. Mertens, A.R. Bishop and G.M. Wysin,
Proceedings of Forum at Florence, Italy, June 7-13, 1990, Microscopic Aspects of Nonlinearity in Condensed Matter,
edited by A.R. Bishop, V.L. Pokrovsky and V. Tognetti (Plenum Press, New York 1991),
NATO ASI Series, Vol. 264, 189 (1991) [4 pages].     Preprint: vpairs91.pdf (707 kB).

26. ``Dynamic correlations in the two-dimensional Heisenberg antiferromagnet,'' G.M. Wysin and A.R. Bishop,
Phys. Rev. B 42, 810 (1990) [10 pages].     Preprint: dyncorr90.pdf (2.2 MB).

25. ``The classical two-dimensional XY model with in-plane magnetic field,''
M.E. Gouvêa, F.G. Mertens, A.R. Bishop and G.M. Wysin,
J. Phys.: Condens. Matter 2, 1853 (1990) [14 pages].     Preprint: xyb90.pdf (2.3 MB).

24. ``Aspects of classical excitations in two-dimensional magnetic systems,'' G. M. Wysin,
Proceedings of Workshop at Ouro Prêto, Brazil, Aug. 8-11, 1989, Computational Physics and Cellular Automata, p. 29,
(World Scientific Publishing Co. 1990) [19 pages].     Preprint: excitations90.pdf (2.8 MB).

23. ``Vortices in the classical two-dimensional anisotropic Heisenberg model,''
M.E. Gouvêa, G.M. Wysin, A.R. Bishop and F.G. Mertens,
Phys. Rev. B 39, 11840 (1989) [10 pages].     Preprint: vortices89.pdf (2.5 MB).

22. ``Rb₂CrCl₄: Studies of a two-dimensional classical easy-plane Heisenberg model with in-plane symmetry breaking,''
M.E. Gouvêa, G.M. Wysin, A.R. Bishop and F.G. Mertens,
J. Phys.: Condens. Matter 1, 4387 (1989) [13 pages].     Preprint: RbCrCl89.pdf (2.0 MB).

21. ``Dynamical correlations from mobile vortices in two-dimensional easy-plane ferromagnets,''
F.G. Mertens, A.R. Bishop, G.M. Wysin and C. Kawabata,
Phys. Rev. B 39, 591 (1989) [12 pages].     Preprint: dynamical89.pdf (2.9 MB).

20. ``Classical spin dynamics in the two-dimensional anisotropic Heisenberg model,''
G.M. Wysin, M.E. Gouvêa, A.R. Bishop and F.G. Mertens,
Proceedings of Workshop at Athens, Georgia, Feb. 15--26, 1988,
Computer Simulation Studies in Condensed Matter Physics: Recent Developments,
edited by D.P. Landau, K.K. Mon and H.B. Schuttler, (Springer, Berlin, Heidelberg, 1988).
Springer Proceedings in Physics, Vol. 33, 40 (1988) [9 pages].     Preprint: heisenberg88.pdf (1.6 MB).

19. ``Picosecond response of photoexcited GaAs in a uniform electric field by Monte Carlo dynamics,''
G.M. Wysin, D.L. Smith and A. Redondo,
Phys. Rev. B 38, 12,514 (1988) [11 pages].     Preprint: pico_GaAs88.pdf (2.8 MB).

18. ``Dynamics of unbound vortices in the 2-dimensional XY and anisotropic Heisenberg models,''
F.G. Mertens, A.R. Bishop, M.E. Gouvêa and G.M. Wysin, Int. Conf. on Magnetism (Paris, 1988),
J. de Physique, Colloque, 49, C8-1385 (1988) [2 pages].     Preprint: ajp-jphyscol198849C8635.pdf (0.14 MB).

17. ``Overshoot in the response of a photoconductor excited by subpicosecond pulses,''
A.E. Iverson, G.M. Wysin, D.L. Smith and A. Redondo,
Applied Physics Letters 52, 2148 (1988) [3 pages].     Preprint: overshoot88.pdf (0.90 MB).

16. ``Nonlinear effects in low-dimensional magnetism: Solitons and vortices,''
A.R. Bishop, C. Kawabata, F.G. Mertens and G.M. Wysin,
Proceedings of Workshop at Turin, Italy, May 25--30, 1987, in Magnetic Excitations and Fluctuations II,
edited by U. Balucani, S.W. Lovesey, M.G. Rasetti and V. Tognetti (Springer-Verlag, Berlin, Heidelberg, 1987) ISBN 978-3-642-73109-9.
Springer Proceedings in Physics, Vol. 23, 109 (1987) [5 pages].     Preprint: nonlinear87.pdf (1.1 MB).

15. ``How vortices produce central peaks in the dynamic form factor of the 2-D anisotropic Heisenberg model,''
F.G. Mertens, A.R. Bishop, G. Wysin and C. Kawabata,
Kinam 8A, 153 (1987) [13 pages].     Preprint: 15-How-vortices87.pdf (2.3 MB).

14. ``Thermomagnetic transport coefficients: Solitons in an easy-plane magnetic chain,'' G.M. Wysin and P. Kumar,
Phys. Rev. B 36, 7063 (1987) [8 pages].     Preprint: thermomag87.pdf (2.0 MB).

13. ``Vortex signatures in dynamic structure factors for two-dimensional easy-plane ferromagnets,''
F.G. Mertens, A.R. Bishop, G.M. Wysin and C. Kawabata,
Phys. Rev. Lett. 59, 117 (1987) [4 pages].     Preprint: vortex87.pdf (0.96 MB).

12. ``Kink-Antikink scattering for an easy-plane one-dimensional antiferromagnet,'' G.M. Wysin and A.R. Bishop,
J. Phys. C 20, 2361 (1987) [13 pages].     Preprint: kink87.pdf (2.3 MB).

11. ``One-dimensional easy-plane magnets: Classical sine-Gordon theory or a quantum model?'' G.M. Wysin and A.R. Bishop,
Proceedings of Sixth Annual Center for Nonlinear Studies Conference, May 4--9, 1986, Los Alamos,
Nonlinearity in Condensed Matter, edited by A.R. Bishop, D.K. Campbell, P. Kumar and S.E. Trullinger,
Springer Series in Solid State Sciences, Vol. 69, 42 (1987) [10 pages].     Preprint: 1DEPM86.pdf (1.4 MB).

10. ``Quantum Monte Carlo and transfer matrix calculations for 1-D easy-plane ferromagnets,'' G.M. Wysin and A.R. Bishop,
Phys. Rev. B 34, 3377 (1986) [11 pages].     Preprint: QMC86.pdf (2.5 MB).

9. ``Chaos and coherence in classical one-dimensional magnets,'' G.M. Wysin and A.R. Bishop,
Proceedings of the International Conference on Magnetism, 1985, at San Francisco, in
J. Mag. Magn. Mat. 54-57, 1132 (1986) [3 pages].     Preprint: chaos86.pdf (605 kB).

8. ``Easy-plane antiferromagnetic kinks,'' G.M. Wysin, A.R. Bishop and J. Oitmaa,
Proceedings of the International Conference on Magnetism, 1985, at San Francisco, in
J. Mag. Magn. Mat. 54-57, 831 (1986) [2 pages].     Preprint: EPAF86.pdf (545 kB).

7. ``Single kink dynamics in an easy-plane classical antiferromagnetic chain,'' G.M. Wysin, A.R. Bishop and J. Oitmaa,
J. Phys. C 19, 221, (1986) [13 pages].     Preprint: singlekink86.pdf (1.8 MB).

6. ``Pattern selection and low-dimensional chaos in dissipative many degree-of-freedom systems,''
A.R. Bishop, J.C. Eilbeck, I. Satija and G. Wysin,
AMS-SIAM Summer Seminar, Santa Fe, NM, July 22--August 4, 1984;
Lec. Appl. Math. 23, 125 (1986) [11 pages].     Preprint: pattern86.pdf (0.97 MB).

5. ``Further theoretical studies of nonlinear conformational motions in double-helix DNA,''
J.A. Krumhansl, G.M. Wysin, D.M. Alexander, A. Garcia, P.S. Lomdahl and S.P. Layne,
Proceedings of Conference on Dynamics and Structure of Biopolymers, in Rome, April 1984.
Structure and Motion: Membranes, Nucleic Acids and Proteins, 407-416,
[E. Clementi, G. Corongiu, M. H. Sarma and R. H. Sarma, editors], Adenine Press (1985) [10 pages].     Preprint: dna85.pdf (1.4 MB).

4. ``Quantum Monte Carlo study of a spin-half chain,'' I. Satija, G. Wysin and A.R. Bishop,
Phys. Rev. B 31, 3205 (1985) [4 pages].     Preprint: QMhalf85.pdf (900 kB).

3. ``Soliton dynamics on an easy-plane ferromagnetic chain,'' G. Wysin, A.R. Bishop and P. Kumar,
J. Phys. C 17, 5975 (1984) [16 pages].     Preprint: soliton84.pdf (2.3 MB).

2. ``Soliton dynamics on a ferromagnetic chain,'' G. Wysin, A.R. Bishop and P. Kumar,
J. Phys. C 15, L337 (1982) [7 pages].     Preprint: soliton82.pdf (0.96 MB).

1. ``Optical bistability with surface plasmons,'' G.M. Wysin, H.J. Simon and R.T. Deck,
Optics Letters (U.S.A.) 6, 30 (1981) [3 pages].     Preprint: opti-bistability81.pdf (850 kB).

Unpublished Reports:

• ``Plane wave theory of optical bistability in reflection at a nonlinear interface,'' R.T. Deck, H.J. Simon and G.M. Wysin,
  University of Toledo draft (1980) [20 pages].     Preprint: planewave80.pdf (1.6 MB).

• ``Resonant modes in triangular dielectric cavities,'' G.M. Wysin,
  arXiv:physics/0409002 , triangle04.pdf (635 kB) (August 31, 2004) [14 pages].

• ``Vortex switching between defects in a magnetic dot,'' G. M. Wysin and S. Gyan, Kansas State University (2008).
      Preprint: bistable-dot08.pdf (788 kB);

Link to Publications Sorted by General Topics

Other Links At KSU

• Kansas State University.
• KSU Physics Department.