TY - JOUR
T1 - Observation of high-temperature spin-freezing behavior in Cd1-x-yMnxFeyTe
AU - Irie, Y.
AU - Sato, T.
AU - Ohta, E.
N1 - Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 1995
Y1 - 1995
N2 - The temperature-dependent magnetic susceptibility of single-crystal Cd1-x-yMnxFeyTe (x=0.26,0.30,0.37,0.44,0.58; y0.01) showed that the cusp temperature Tg is higher than that of Cd1-xMnxTe with the same Mn content. This is ascribed to the stronger Mn-Mn interaction, which is caused by a decrease in the lattice constant accompanied with doping of the Fe into Cd1-xMnxTe. We scarcely observed the intrinsic difference between Cd1-x-yMnxFeyTe and Cd1-xMnxTe samples except for Cd0.62Mn0.37Fe0.01Te, which shows quite a peculiar magnetic behavior. The temperature-dependent magnetic susceptibility of Cd0.62Mn0.37Fe0.01Te at temperatures above Tg shows a minimum around 100 K and increases as the temperature further increases and the thermal hysteresis still remains up to 340 K. The time-dependent remanent magnetization of Cd0.62Mn0.37Fe0.01Te suggests a spin-glass-like relaxation retained even at T250 K. Such high-temperature spin-freezing behavior can be interpreted in terms of the bound magnetic polaron formation with a carrier localization.
AB - The temperature-dependent magnetic susceptibility of single-crystal Cd1-x-yMnxFeyTe (x=0.26,0.30,0.37,0.44,0.58; y0.01) showed that the cusp temperature Tg is higher than that of Cd1-xMnxTe with the same Mn content. This is ascribed to the stronger Mn-Mn interaction, which is caused by a decrease in the lattice constant accompanied with doping of the Fe into Cd1-xMnxTe. We scarcely observed the intrinsic difference between Cd1-x-yMnxFeyTe and Cd1-xMnxTe samples except for Cd0.62Mn0.37Fe0.01Te, which shows quite a peculiar magnetic behavior. The temperature-dependent magnetic susceptibility of Cd0.62Mn0.37Fe0.01Te at temperatures above Tg shows a minimum around 100 K and increases as the temperature further increases and the thermal hysteresis still remains up to 340 K. The time-dependent remanent magnetization of Cd0.62Mn0.37Fe0.01Te suggests a spin-glass-like relaxation retained even at T250 K. Such high-temperature spin-freezing behavior can be interpreted in terms of the bound magnetic polaron formation with a carrier localization.
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U2 - 10.1103/PhysRevB.51.13084
DO - 10.1103/PhysRevB.51.13084
M3 - Article
AN - SCOPUS:0040439881
SN - 0163-1829
VL - 51
SP - 13084
EP - 13090
JO - Physical Review B
JF - Physical Review B
IS - 19
ER -