Anomalies in the antiferromagnetic phase on CeIrSi_3
Anomalies in the antiferromagnetic phase on CeIrSi_3
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CeIrSi_3 反铁磁相异常
DOI：
10.1088/1742-6596/592/1/012012
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
N. Kimura
中科院分区：
文献类型：
--
作者：
H. Iida;M. Satoh;N. Kabeya;H. Aoki;N. Kimura
为了研究ceirsi3的磁性基态和电学结构，我们进行了低温和磁场下的电阻率和比热测量。在反铁磁相，发现了两个异常。一个是在0.6 K时电阻率有一个很宽的迟滞的弱驼峰，这意味着一阶相变。另一个是“N”形横磁电阻。磁阻产生复杂的磁滞。稍加压力，这些异常现象就会消失。ceirsi3的磁态和电子态复杂，对压力敏感。
In order to investigate a magnetic ground state and electrical structure of CeIrSi 3, we have performed the electrical resistivity and specific heat measurements at low temperatures and magnetic fields. In the antiferromagnetic phase, two anomalies are found. One is a weak hump with a broad hysteresis in the resistivity at 0.6 K, which implies a first-order phase transition. The other is an" N" shaped transvers-magnetoresistance. A complicated hysteresis is accompanied with the magnetoresistance. Theses anomalies disappear by applying a slight pressure. The magnetic and electronic states of CeIrSi 3 are complicated and sensitive to pressure.