Microscopic model for a class of mixed-spin quantum antiferromagnets -: art. no. 184417

被引:8
作者
Alvarez, JV [1 ]
Valentí, R
Zheludev, A
机构
[1] Univ Saarland, Fak 7, D-66041 Saarbrucken, Germany
[2] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA
[3] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA
关键词
D O I
10.1103/PhysRevB.65.184417
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We propose a microscopic model that describes the magnetic behavior of the mixed-spin quantum systems R2BaNiO5 (R=magnetic rare earth). An evaluation of the properties of this model by quantum Monte Carlo simulations shows remarkable good agreement with the experimental data, and provides insight into the physics of mixed-spin quantum magnets.
引用
收藏
页码:1844171 / 1844175
页数:5
相关论文
共 29 条
[1]   MODEL FOR QUASI-ONE-DIMENSIONAL ANTIFERROMAGNETS - APPLICATION TO CSNICL3 [J].
AFFLECK, I .
PHYSICAL REVIEW LETTERS, 1989, 62 (04) :474-477
[2]   NEUTRON-DIFFRACTION STUDY OF THE MAGNETIC-STRUCTURE OF ER2BANIO5 [J].
ALONSO, JA ;
AMADOR, J ;
MARTINEZ, JL ;
RASINES, I ;
RODRIGUEZCARVAJAL, J ;
SAEZPUCHE, R .
SOLID STATE COMMUNICATIONS, 1990, 76 (04) :467-474
[3]   Spin dynamics of hole-doped Y2BaNiO5 [J].
Batista, CD ;
Aligia, AA ;
Eroles, J .
EUROPHYSICS LETTERS, 1998, 43 (01) :71-76
[4]   Spin dynamics of hole doped Y2-xCaxBaNiO5 [J].
Dagotto, E ;
Riera, J ;
Sandvik, A ;
Moreo, A .
PHYSICAL REVIEW LETTERS, 1996, 76 (10) :1731-1734
[5]   THE COMPOUND Y2BANIO5 - A NEW EXAMPLE OF A HALDANE-GAP IN A S = 1 MAGNETIC CHAIN [J].
DARRIET, J ;
REGNAULT, LP .
SOLID STATE COMMUNICATIONS, 1993, 86 (07) :409-412
[6]   MAGNETIC AND CHARGE DYNAMICS IN A DOPED ONE-DIMENSIONAL TRANSITION-METAL OXIDE [J].
DITUSA, JF ;
CHEONG, SW ;
PARK, JH ;
AEPPLI, G ;
BROHOLM, C ;
CHEN, CT .
PHYSICAL REVIEW LETTERS, 1994, 73 (13) :1857-1860
[7]   CLUSTER ALGORITHM FOR VERTEX MODELS [J].
EVERTZ, HG ;
LANA, G ;
MARCU, M .
PHYSICAL REVIEW LETTERS, 1993, 70 (07) :875-879
[8]   MAGNETIC-STRUCTURE OF HO2BANIO5 [J].
GARCIAMATRES, E ;
RODRIGUEZCARVAJAL, J ;
MARTINEZ, JL ;
SALINASSANCHEZ, A ;
SAEZPUCHE, R .
SOLID STATE COMMUNICATIONS, 1993, 85 (07) :553-559
[9]   MAGNETIC-SUSCEPTIBILITY AND FIELD-INDUCED TRANSITIONS IN R(2)BANIO(5) COMPOUNDS (R=TM, ER, HO, DY, TB, GD, SM, ND, PR) [J].
GARCIAMATRES, E ;
GARCIAMUNOZ, JL ;
MARTINEZ, JL ;
RODRIGUEZCARVAJAL, J .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 149 (03) :363-372