Magnetic and transport properties of Sb2-xFexTe3 (0<x<0.02) single crystals

被引：29
|
作者：
Zhou, ZH [1 ]
Zabèík, M
Losták, P
Uher, C
机构：
[1] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
[2] Univ Pardubice, Fac Chem Technol, CS-53210 Pardubice, Czech Republic
来源：
JOURNAL OF APPLIED PHYSICS | 2006年 / 99卷 / 04期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1063/1.2171787
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetization, electrical resistivity, and Hall coefficient of single crystals Sb2-xFexTe3 (0 < x < 0.02) have been measured from 2 to 300 K. Doping diamagnetic Sb2Te3 with Fe results in a paramagnetic behavior and the exchange interaction between Fe ions is determined to be antiferromagnetic based on low-temperature magnetization investigations. We detect no presence of a ferromagnetic ordering in Fe-doped Sb2Te3 down to 2 K. Fe doping initially increases the concentration of holes in relation to the case of pure Sb2Te3 but it rapidly saturates. The electrical resistivity increases throughout the temperature range studied on account of enhanced carrier scattering. (c) 2006 American Institute of Physics.
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页数：4
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