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Effects of high pressure on the magnetic properties of Eu1-xCaxB6 (x=0.3, 0.35, and 0.4)

机译:高压对Eu1-xCaxB6(x = 0.3、0.35和0.4)磁性的影响

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摘要

We present our study of Ca substituted hexaborides, Eu1-xCaxB6 (x = 0.3, 0.35, and 0.4), through temperature-dependent magnetization M(T) and isothermal magnetization M(H) measurements under high pressures (0 <= p <= 10 kbar) and magnetic fields (0 <= H <= 7T). T-C of x = 0.3 increases with increasing pressure and the ferromagnetic interaction is observed to be increased in M(H). The antiferromagnetic transition behavior seen in x = 0.4 at ambient pressure is gradually weakened with increasing pressure and completely subdued at p = 10 kbar. From these results, we found that the physical properties of Eu1-xCaxB6 are dominated by the effective magnetic interaction between Eu moments. (c) 2006 Elsevier B.V. All rights reserved.
机译:我们通过在高压下(0 <= p <= 10 kbar)和磁场(0 <= H <= 7T)。 x = 0.3的T-C随着压力的增加而增加,并且铁磁相互作用在M(H)中增加。在x = 0.4的环境压力下,反铁磁跃迁行为随着压力的增加而逐渐减弱,并在p = 10 kbar时完全减弱。从这些结果中,我们发现Eu1-xCaxB6的物理性质主要由Eu矩之间的有效磁相互作用决定。 (c)2006 Elsevier B.V.保留所有权利。

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