Magneto-thermal properties of the spin-s Heisenberg antiferromagnet on the cuboctahedron

被引：23

作者：

Honecker, A. ^{[1
]}

Zhitomirsky, M. E. ^{[2
]}

机构：

[1] Univ Gottingen, Inst Theoret Phys, D-37077 Gottingen, Germany

[2] SPSMS, INAC, DSM, Commissariat Energie Atom, F-38054 Grenoble, France

来源：

HIGHLY FRUSTRATED MAGNETISM 2008 (HFM 2008) | 2009年 / 145卷

关键词：

D O I：

10.1088/1742-6596/145/1/012082

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We use the example of the cuboctahedron, a highly frustrated molecule with 12 sites, to study the approach to the classical limit. We compute magnetic susceptibility, specific heat, and magnetic cooling rate at high magnetic fields and low temperatures for different spin quantum numbers s. Remarkably big deviations of these quantities from their classical counterparts are observed even for values of s which are usually considered to be almost classical.

引用

页数：4

共 13 条

[1] Quantum magnetization plateau and sign change of the magnetocaloric effect in a ferrimagnetic spin chain
Boyarchenkov, A. S.
Bostrem, I. G.
Ovchinnikov, A. S.
[J]. PHYSICAL REVIEW B, 2007, 76 (22)
[2] Finite quantum Heisenberg spin models and their approach to the classical limit
Engelhardt, Larry
Luban, Marshall
Schroeder, Christian
[J]. PHYSICAL REVIEW B, 2006, 74 (05):
[3] Magnetocaloric effect in two-dimensional spin-1/2 antiferromagnets
Honecker, A.
Wessel, S.
[J]. PHYSICA B-CONDENSED MATTER, 2006, 378-80 (1098-1099) : 1098 - 1099
[4] Monte-Carlo study of correlations in quantum spin chains at non-zero temperature
Kim, YJ
Greven, M
Wiese, UJ
Birgeneau, RJ
[J]. EUROPEAN PHYSICAL JOURNAL B, 1998, 4 (03) : 291 - 297
[5] Highly frustrated magnetic clusters:: The kagome on a sphere
Rousochatzakis, Ioannis
Laeuchli, Andreas M.
Mila, Frederic
[J]. PHYSICAL REVIEW B, 2008, 77 (09)
[6] Magnetocaloric effect in the frustrated square lattice J1-J2 model
Schmidt, B.
Thalmeier, P.
Shannon, Nic
[J]. PHYSICAL REVIEW B, 2007, 76 (12):
[7] Frustration effects in magnetic molecules
Schmidt, R
Richter, J
Schnack, J
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2005, 295 (02) : 164 - 167
[8] Independent magnon states on magnetic polytopes
Schnack, J
Schmidt, HJ
Richter, J
Schulenburg, J
[J]. EUROPEAN PHYSICAL JOURNAL B, 2001, 24 (04) : 475 - 481
[9] Enhanced magnetocaloric effect in frustrated magnetic molecules with icosahedral symmetry
Schnack, Juergen
Schmid, Reimar
Richter, Johannes
[J]. PHYSICAL REVIEW B, 2007, 76 (05)
[10] Macroscopic magnetization jumps due to independent magnons in frustrated quantum spin lattices
Schulenburg, J
Honecker, A
Schnack, J
Richter, J
Schmidt, HJ
[J]. PHYSICAL REVIEW LETTERS, 2002, 88 (16) : 1672071 - 1672074

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