High-field magnetization and magnetic phase transition in CeOs2Al10、Physical
High-field magnetization and magnetic phase transition in CeOs2Al10、Physical
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CeOs2Al10 中的高场磁化和磁相变，物理
DOI：
10.1103/physrevb.83.180415
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Koichi Kindo
中科院分区：
文献类型：
--
作者：
Akihiro Kondo;Junfeng Wang;Koichi Kindo
研究了CeOsAl在高达55T强磁场中的磁化强度，并绘制了CeOsAl的磁相图。磁化曲线在低于K时呈凹形，高于转变温度K。磁化率沿着轴，，表明一个平稳和连续的下降到20 K以下，而没有显示出异常。从这两个结果可以看出，在下面形成了一个Kondo单态，并与下面的反铁磁序共存。我们还提出，较大的抑制自旋自由度沿着轴比沿着轴下方是与反铁磁成分的起源。
We have studied the magnetization of CeOsAlin high magnetic fields up to 55 T forand constructed the magnetic phase diagram for. The magnetization curve shows a concavedependence belowK, which is higher than the transition temperatureK. The magnetic susceptibility along theaxis,, shows a smooth and continuous decrease down to20 K belowK without showing an anomaly at. From these two results, a Kondo singlet is formed belowand coexists with the antiferromagnetic order below. We also propose that the larger suppression of the spin degrees of freedom along theaxis than along theaxis belowis associated with the origin of the antiferromagnetic component.