Structures and Magnetic Properties of Europium-Transition Metal-Gallium Ternary Intermetallic Compounds with 1:3 Type

作者：He Qiang; Guo Yong Quan^*

来源：Chinese Physics Letters, 2015, 32(1): 017504.

DOI：10.1088/0256-307X/32/1/017504

The crystal structures and magnetic properties of novel EuT.. Ga3-.. ( T= Pd, Ir, Rh) intermetallic compounds are investigated by using powder x- ray diffraction and magnetic measurements. EuT.. Ga3-.. crystallizes in orthorhombic structure with space group of........ and.. = 4. There are four kinds of nonequivalent 4c crystal positions in EuT.. Ga3-.. unit cell, which are occupied by 4Eu, 4GaI, 4( GaII, T) and 4GaIII, respectively. EuT.. Ga3-.. exhibits the complex magnetic states in low- temperature regime, with the three-, two- and one- antiferromagnetic transitions occurring for T= Ir, T= Rh and T= Pd, respectively. It might be due to the Kondo effect: a localized antiferromagnetic interaction of the isolated impurity spins with the surrounding conduction electrons at low- temperature regime.

• 出版日期2015-1
• 单位华北电力大学; 华北电力大学（保定）