Colossal magnetoresistance in a rare earth zintl compound with a new structure type:: EuIn2P2

被引：82
作者：
Jiang, J [1 ]
Kauzlarich, SM [1 ]
机构：
[1] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA
来源：
CHEMISTRY OF MATERIALS | 2006年 / 18卷 / 02期
关键词：
D O I：
10.1021/cm0520362
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Single crystals of a new Zintl compound, EuInP2, were grown from indium metal as a flux solvent. ;The compound crystallizes in the hexagonal P6(3)/mmc space group with a unit cell of a = 4.0829(6) angstrom, c = 17.595(4) angstrom, and Z = 2. It contains alternating Eu2+ layers and [In-2)P-2)](2-) layers. This compound is paramagnetic at high temperatures with a magnetic transition at 24 K. In the magnetically ordered state, it shows large magnetic anisotropy. The temperature-dependent resistivity of this compound suggests interaction between conduction electrons and local spins. Negative colossal magnetoresistance of up to -398% (MR = {[rho(H) - rho(0)/rho(H)} x 100%) at 5 T is observed at 24 K.
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页码：435 / 441
页数：7
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