Magnetic exchange interactions induced by Cr-doping in perovskite manganites

Chang Seop Hong; Nam Hwi Hur; Yong Nam Choi

doi:10.1016/j.ssc.2004.12.010

Magnetic exchange interactions induced by Cr-doping in perovskite manganites

Chang Seop Hong, Nam Hwi Hur, Yong Nam Choi

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

17 Citations (Scopus)

Abstract

The effect of Cr-doping on the structural, magnetic and transport properties of perovskite manganites La_0.8Ca_0.2Mn _1-xCr_xO₃ (0≤x≤0.7) has been investigated. The Curie temperature (T_C) of the Cr-doped samples is almost unchanged up to 30% of Cr-doping. The Cr-doped samples, however, undergo a transition from the parent metallic state to the insulating state below T _C. The dc and ac magnetization data suggest that ferromagnetic clusters induced by double exchange interaction between Cr³⁺ and Mn³⁺ ions and antiferromagnetic components driven by Cr ³⁺/Mn⁴⁺ and Cr³⁺/Cr³⁺ interactions are present in the Cr-doped system, which is supported by comparative studies on magnetic and transport properties of LaMnO_3+δ and LaMn _0.75Cr_0.25O_3+δ.

Original language	English
Pages (from-to)	531-536
Number of pages	6
Journal	Solid State Communications
Volume	133
Issue number	8
DOIs	https://doi.org/10.1016/j.ssc.2004.12.010
Publication status	Published - 2005 Feb

Bibliographical note

Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.

Keywords

A. Magnetically ordered materials
A. Perovskite manganites
D. Colossal magnetoresistance

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/j.ssc.2004.12.010

Cite this

@article{a1a384c3dbd645de87d8309faf521537,

title = "Magnetic exchange interactions induced by Cr-doping in perovskite manganites",

abstract = "The effect of Cr-doping on the structural, magnetic and transport properties of perovskite manganites La0.8Ca0.2Mn 1-xCrxO3 (0≤x≤0.7) has been investigated. The Curie temperature (TC) of the Cr-doped samples is almost unchanged up to 30% of Cr-doping. The Cr-doped samples, however, undergo a transition from the parent metallic state to the insulating state below T C. The dc and ac magnetization data suggest that ferromagnetic clusters induced by double exchange interaction between Cr3+ and Mn3+ ions and antiferromagnetic components driven by Cr 3+/Mn4+ and Cr3+/Cr3+ interactions are present in the Cr-doped system, which is supported by comparative studies on magnetic and transport properties of LaMnO3+δ and LaMn 0.75Cr0.25O3+δ.",

keywords = "A. Magnetically ordered materials, A. Perovskite manganites, D. Colossal magnetoresistance",

author = "Hong, {Chang Seop} and Hur, {Nam Hwi} and Choi, {Yong Nam}",

year = "2005",

month = feb,

doi = "10.1016/j.ssc.2004.12.010",

language = "English",

volume = "133",

pages = "531--536",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd",

number = "8",

}

TY - JOUR

T1 - Magnetic exchange interactions induced by Cr-doping in perovskite manganites

AU - Hong, Chang Seop

AU - Hur, Nam Hwi

AU - Choi, Yong Nam

PY - 2005/2

Y1 - 2005/2

N2 - The effect of Cr-doping on the structural, magnetic and transport properties of perovskite manganites La0.8Ca0.2Mn 1-xCrxO3 (0≤x≤0.7) has been investigated. The Curie temperature (TC) of the Cr-doped samples is almost unchanged up to 30% of Cr-doping. The Cr-doped samples, however, undergo a transition from the parent metallic state to the insulating state below T C. The dc and ac magnetization data suggest that ferromagnetic clusters induced by double exchange interaction between Cr3+ and Mn3+ ions and antiferromagnetic components driven by Cr 3+/Mn4+ and Cr3+/Cr3+ interactions are present in the Cr-doped system, which is supported by comparative studies on magnetic and transport properties of LaMnO3+δ and LaMn 0.75Cr0.25O3+δ.

AB - The effect of Cr-doping on the structural, magnetic and transport properties of perovskite manganites La0.8Ca0.2Mn 1-xCrxO3 (0≤x≤0.7) has been investigated. The Curie temperature (TC) of the Cr-doped samples is almost unchanged up to 30% of Cr-doping. The Cr-doped samples, however, undergo a transition from the parent metallic state to the insulating state below T C. The dc and ac magnetization data suggest that ferromagnetic clusters induced by double exchange interaction between Cr3+ and Mn3+ ions and antiferromagnetic components driven by Cr 3+/Mn4+ and Cr3+/Cr3+ interactions are present in the Cr-doped system, which is supported by comparative studies on magnetic and transport properties of LaMnO3+δ and LaMn 0.75Cr0.25O3+δ.

KW - A. Magnetically ordered materials

KW - A. Perovskite manganites

KW - D. Colossal magnetoresistance

UR - http://www.scopus.com/inward/record.url?scp=12444317646&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2004.12.010

DO - 10.1016/j.ssc.2004.12.010

M3 - Article

AN - SCOPUS:12444317646

SN - 0038-1098

VL - 133

SP - 531

EP - 536

JO - Solid State Communications

JF - Solid State Communications

IS - 8

ER -

Magnetic exchange interactions induced by Cr-doping in perovskite manganites

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this