Observation of high-temperature spin-freezing behavior in Cd1-x-yMnxFeyTe

Y. Irie, Tetsuya Sato, E. Ohta

Research output: Contribution to journalArticle

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Abstract

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.

Original languageEnglish
Pages (from-to)13084-13090
Number of pages7
JournalPhysical Review B
Volume51
Issue number19
DOIs
Publication statusPublished - 1995

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Freezing
freezing
Magnetic susceptibility
Temperature
temperature
magnetic permeability
Gene Conversion
cusps
Spin glass
spin glass
Lattice constants
hysteresis
Hysteresis
Magnetization
magnetization
Doping (additives)
Single crystals
single crystals
interactions

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Observation of high-temperature spin-freezing behavior in Cd1-x-yMnxFeyTe. / Irie, Y.; Sato, Tetsuya; Ohta, E.

In: Physical Review B, Vol. 51, No. 19, 1995, p. 13084-13090.

Research output: Contribution to journalArticle

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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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