Valence fluctuation and magnetic ordering in EuNi2(P1-xGex)2 single crystals
Valence fluctuation and magnetic ordering in EuNi2(P1-xGex)2 single crystals
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DOI：
10.1088/0953-8984/28/16/166001
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发表时间：
2016-04-27
影响因子：
2.7
通讯作者：
Hossain, Z.
中科院分区：
文献类型：
--
作者：
Paramanik, U. B.;Bar, A.;Hossain, Z.
在Ce基化合物、Eu基化合物和Yb基化合物中，在磁性-非磁性交界处发现了反常的相和相变。EuNi2P2是一个非常不寻常的Eu价波动系统，因为在低温下Eu价保持在2.5附近，而不是接近整数值。当T-N=30K时，EuNi2Ge2的二价Eu磁矩表现出反铁磁(AFM)有序。我们已经生长了EuNi2(P1-xGex)(2)(0.0
Unusual phases and phase transitions are seen at the magnetic-nonmagnetic boundary in Ce-, Eu- and Yb-based compounds. EuNi2P2 is a very unusual valence fluctuating Eu system, because at low temperatures the Eu valence stays close to 2.5 instead of approaching an integer value. The Eu valence, and thus the magnetic property in this system, can be tuned by Ge substitution in the P site as EuNi2Ge2 is known to exhibit the antiferromagnetc (AFM) ordering of divalent Eu moments with T-N = 30 K. We have grown EuNi2(P1-xGex)(2) (0.0