Dzyaloshinskii–Moriya Interaction in Spin 1/2 Antiferromagnetic Rings with Nearest Next Neighbor Coupling
LI Peng-Fei** , CAO Hai-Jing, ZHENG Li
Department of Mathematics and Physics, Shanghai University of Electric Power, Shanghai 200090
Abstract ：We numerically investigate the magnetoelastic (ME) instability in spin 1/2 antiferromagnetic rings with nearest-next neighbor (NNN) coupling J 2 and Dzyaloshinskii–Moriya (DM) interaction Dz . It is found that, for a given Dz , there exists a critical J 2 c J 2 =J 2 c J 2 =0.5, at which the systems always locate in the dimerized state.
收稿日期: 2012-11-26
出版日期: 2013-04-28
:
75.10.Jm
(Quantized spin models, including quantum spin frustration)
75.10.Pq
(Spin chain models)
75.30.Kz
(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
[1] Thomas L, Lionti F, Ballou R, Gatteschi D, Sessoli R and Barbara B 1996 Nature 383 145 1996 Phys. Rev. Lett. 76 3830 1999 Science 284 133 2007 Chin. Phys. B 16 1776 2009 Chin. Phys. Lett. 26 077504 2006 Phys. Rev. Lett. 96 027206 2009 Phys. Rev. B 79 180412 2006 J. Phys. Chem. B 110 11607 2000 Phys. Rev. B 61 6839 2004 Phys. Rev. Lett. 92 197202 2011 Phys. Lett. A 375 716 2012 Phys. Rev. B 85 085427 2006 Phys. Lett. A 353 48 1979 Phys. Rev. B 19 402 1994 Commun. Math. Phys. 164 17 1990 Phys. Rev. B 41 9592 1996 Phys. Rev. B 53 2583 2001 Phys. Rev. Lett. 86 2439 2001 Phys. Rev. Lett. 87 127203 1975 Z. Anorg. Allg. Chem. 417 68 1995 Z. Phys. B 96 465 1958 J. Phys. Chem. Solids 4 241 1960 Phys. Rev. 120 91 2002 Eur. Phys. J. B 30 461 2002 Phys. Rev. B 66 174426 1996 J. Phys. Soc. Jpn. 65 3142 1997 Phys. Rev. B 55 R11945 1995 Phys. Rev. B 51 16098 1995 Phys. Rev. Lett. 75 1823 2001 Phys. Rev. Lett. 86 5381 1987 J. Phys. Soc. Jpn. 56 3126 1987 J. Phys. Soc. Jpn. 56 2153 1997 Phys. Rev. Lett. 79 2883 2009 Phys. Rev. B 79 180412 1969 J. Math. Phys. 10 1399 2009 Commun. Theor. Phys. 52 1125
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
.
[7]
.
[8]
.
[9]
.
[10]
.
[11]
.
[12]
.
[13]
.
[14]
.
[15]
.
2013, Vol. 30 
