New evidence of formation of magnetic polaron states in semimetals GdAs and GdP

D. X. Li; Y. Haga; H. Shida; T. Suzuki

doi:10.1016/0038-1098(96)00091-9

New evidence of formation of magnetic polaron states in semimetals GdAs and GdP

D. X. Li, Y. Haga, H. Shida, T. Suzuki

Materials Processing and Characterization Division

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Some new magnetic polaron effects were found for nonstoichiometric GdAs and GdP by measuring their electrical resistivities, susceptibilities and specific heats as functions of temperature from 1.6 K ≤ T ≤ 300 K. The temperature dependence of the resistivities shows clear defferences between stoichiometirc and nonstoiciometric GsAs and GdP samples. Comparing with the stoichiometric samples, nonstoichiometirc GdAs and GdP show much larger susceptibility values at low temperatures and smaller entropy values. These anomalous properties are explained by the trapped magnetic polaron.

Original language	English
Pages (from-to)	513-516
Number of pages	4
Journal	Solid State Communications
Volume	98
Issue number	6
DOIs	https://doi.org/10.1016/0038-1098(96)00091-9
Publication status	Published - 1996 May

Keywords

A. magnetically ordered materials
D. electronic transport
D. heat capacity
D. recombination and trapping

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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title = "New evidence of formation of magnetic polaron states in semimetals GdAs and GdP",

abstract = "Some new magnetic polaron effects were found for nonstoichiometric GdAs and GdP by measuring their electrical resistivities, susceptibilities and specific heats as functions of temperature from 1.6 K ≤ T ≤ 300 K. The temperature dependence of the resistivities shows clear defferences between stoichiometirc and nonstoiciometric GsAs and GdP samples. Comparing with the stoichiometric samples, nonstoichiometirc GdAs and GdP show much larger susceptibility values at low temperatures and smaller entropy values. These anomalous properties are explained by the trapped magnetic polaron.",

keywords = "A. magnetically ordered materials, D. electronic transport, D. heat capacity, D. recombination and trapping",

author = "Li, {D. X.} and Y. Haga and H. Shida and T. Suzuki",

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T1 - New evidence of formation of magnetic polaron states in semimetals GdAs and GdP

AU - Li, D. X.

AU - Haga, Y.

AU - Shida, H.

AU - Suzuki, T.

PY - 1996/5

Y1 - 1996/5

N2 - Some new magnetic polaron effects were found for nonstoichiometric GdAs and GdP by measuring their electrical resistivities, susceptibilities and specific heats as functions of temperature from 1.6 K ≤ T ≤ 300 K. The temperature dependence of the resistivities shows clear defferences between stoichiometirc and nonstoiciometric GsAs and GdP samples. Comparing with the stoichiometric samples, nonstoichiometirc GdAs and GdP show much larger susceptibility values at low temperatures and smaller entropy values. These anomalous properties are explained by the trapped magnetic polaron.

AB - Some new magnetic polaron effects were found for nonstoichiometric GdAs and GdP by measuring their electrical resistivities, susceptibilities and specific heats as functions of temperature from 1.6 K ≤ T ≤ 300 K. The temperature dependence of the resistivities shows clear defferences between stoichiometirc and nonstoiciometric GsAs and GdP samples. Comparing with the stoichiometric samples, nonstoichiometirc GdAs and GdP show much larger susceptibility values at low temperatures and smaller entropy values. These anomalous properties are explained by the trapped magnetic polaron.

KW - A. magnetically ordered materials

KW - D. electronic transport

KW - D. heat capacity

KW - D. recombination and trapping

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