Electrical, magnetic, and magneto-electrical properties in quasi-two-dimensional K0.58RhO2 single crystals doped with rare-earth elements

Electrical, magnetic, and magneto-electrical properties in quasi-two-dimensional K0.58RhO2 single crystals doped with rare-earth elements
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稀土元素掺杂准二维K0.58RhO2单晶的电学、磁学和磁电特性

DOI:
10.1063/1.4893324
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发表时间:
2014-08
影响因子:
4
通讯作者:
Y. G. Shi
Y. G. Shi
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Song-Tao Dong;Shu-Hua Yao;Y. B. Chen;Shan-Tao Zhang;Zheng-Bin Gu;Jian Zhou;Ming-Hui Lu;Yan-Feng Chen;Y. G. Shi

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本文研究了掺La、Sm、Ho和Dy的准二维K0.58RhO2单晶的电输运、磁性、磁阻和反常霍尔特性。在低温(lt;10K)下,这些样品具有显著的磁电阻效应(36%)。相应地,这些样品的随温度变化的磁化强度揭示了“玻璃态铁磁性”。显著的磁阻与颗粒状的铁磁性有关。在磁性原子掺杂样品中也观察到了非常规反常霍尔效应。我们的发现屏蔽了更多关于磁性离子掺杂的准二维材料系统的磁性、磁阻和反常霍尔特性的光。
In this Letter, we studied the electrical transport, magnetic property, magnetoresistance and anomalous Hall properties of La-, Sm-, Ho-, and Dy-doped quasi-two dimensional K0.58RhO2 single crystals. At low temperature (lt;10 K), a significant magnetoresistance (36%) can be observed in these samples. Accordingly, the “glassy ferromagnetism” is revealed by temperature-dependent magnetization in these samples. The significant magnetoresistance is related to the granular ferromagnetism. The unconventional anomalous Hall effect is also observed in magnetic atoms doped samples. Our finding shields more light on the magnetic, magnetoresistance, and anomalous Hall properties of quasi-two-dimensional material systems doped with magnetic ions.
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