Spin and thermal transport and critical phenomena in three-dimensional antiferromagnets
Spin and thermal transport and critical phenomena in three-dimensional antiferromagnets
复制标题
三维反铁磁体中的自旋和热传输以及临界现象
DOI:
10.1103/physrevb.106.224407
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发表时间:
2022
影响因子:
3.7
通讯作者:
Aoyama Kazushi
中科院分区:
文献类型:
--
作者:
Aoyama Kazushi;Kawamura Hikaru;Aoyama Kazushi
We investigate spin and thermal transport near the Néel transition temperaturein three dimensions by numerically analyzing the classical antiferromagneticmodel on the cubic lattice, where in the model, the anisotropy of the exchange interactionplays a role to control the universality class of the transition. It is found by means of the hybrid Monte Carlo and spin-dynamics simulations that in theand Heisenberg cases of, the longitudinal spin conductivityexhibits a divergent enhancement on cooling towardwhile not in the Ising case of. In all three cases, the temperature dependence of the thermal conductivityis featureless at, being consistent with experimental results. The divergent enhancement oftowardis attributed to the spin-current relaxation time which gets longer toward, showing a power-law divergence characteristic of critical phenomena. It is also found that in contrast to thecase where the divergence inis rapidly suppressed belowlikely remains divergent even belowin the Heisenberg case, which might experimentally be observed in the ideally isotropic antiferromagnet.
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影响因子:
4
作者:
K. Kawasaki
通讯作者:
K. Kawasaki
DOI:
--
发表时间:
1968
期刊:
--
影响因子:
--
作者:
川崎 恭治
通讯作者:
川崎 恭治
影响因子:
--
作者:
D. Huber
通讯作者:
D. Huber
DOI:
10.1088/1742-5468/ac12c7
发表时间:
2021-08-01
影响因子:
2.4
作者:
Bulchandani, Vir B.;Gopalakrishnan, Sarang;Ilievski, Enej
通讯作者:
Ilievski, Enej
DOI:
10.1140/epjb/e2012-30708-7
发表时间:
2012
期刊:
The European Physical Journal B
影响因子:
--
作者:
Zewei Chen;T. Datta;D. Yao
通讯作者:
D. Yao