论文类型：期刊论文
第一作者：B Cheng
通讯作者：NL Wang
合写作者：BF Hu,JL Luo,P Zheng,YG Shi,G Xu,ZG Chen,AF Fang,T Dong,RH Yuan
发表刊物：Physical Review B
收录刊物：SCI
学科门类：物理学
文献类型：J
卷号：85
期号：14
页面范围：144426
ISSN号：2469-9950
发表时间：2012-04-25
影响因子：3.767
摘要：CaCo 2 As 2, a ThCr 2 Si 2-structure compound, undergoes an antiferromagnetic transition at T N= 76 K with the magnetic moments being aligned parallel to the c axis. Electronic transport measurement reveals that the coupling between conducting carriers and magnetic order in CaCo 2 As 2 is much weaker compared to the parent compounds of iron pnictide. Applying magnetic field along the c axis induces two successive spin-flop transitions in its magnetic state. The magnetization saturation behaviors with H∥ c and H∥ a b at 10 K indicate that the antiferromagnetic coupling along the c direction is very weak. The interlayer antiferromagntic coupling constant J c is estimated to be about 2 meV.
发布期刊链接：https://journals.aps.org/prb/abstract/10.1103/PhysRevB.85.144426