Inhomogeneous magnetic structures of La0.7Ca0.3MnO3 investigated by ESR and magnetization measurements

Keon Woo Joh; Chang Hoon Lee; Cheol Eui Lee; Yoon Hee Jeong; C. S. Hong; Nam Hwi Hur

Inhomogeneous magnetic structures of La_0.7Ca_0.3MnO₃ investigated by ESR and magnetization measurements

Keon Woo Joh, Chang Hoon Lee, Cheol Eui Lee, Yoon Hee Jeong, C. S. Hong, Nam Hwi Hur

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Abstract

Comprehensive measurements of electron spin resonance and magnetization of La_0.7Ca_0.3MnO₃ in the ferromagnetic as well as paramagnetic phases were carried out. From the quantitative analysis of the ESR signal, attributed to itinerant spins and localized spins in the bottleneck regime, evidences for the inhomogeneous nature of both phases, consisting of clusters of one phase embedded in the other, were found. It is suggested that the microscopic local magnetic structures above and below T_c are qualitatively similar except that the phase below T_c carries long range order.

Original language	English
Pages (from-to)	159-166
Number of pages	8
Journal	Materials Research Society Symposium-Proceedings
Volume	602
Publication status	Published - 2000

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

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title = "Inhomogeneous magnetic structures of La0.7Ca0.3MnO3 investigated by ESR and magnetization measurements",

abstract = "Comprehensive measurements of electron spin resonance and magnetization of La0.7Ca0.3MnO3 in the ferromagnetic as well as paramagnetic phases were carried out. From the quantitative analysis of the ESR signal, attributed to itinerant spins and localized spins in the bottleneck regime, evidences for the inhomogeneous nature of both phases, consisting of clusters of one phase embedded in the other, were found. It is suggested that the microscopic local magnetic structures above and below Tc are qualitatively similar except that the phase below Tc carries long range order.",

author = "Joh, {Keon Woo} and Lee, {Chang Hoon} and Lee, {Cheol Eui} and Jeong, {Yoon Hee} and Hong, {C. S.} and Hur, {Nam Hwi}",

year = "2000",

language = "English",

volume = "602",

pages = "159--166",

journal = "Materials Research Society Symposium Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

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TY - JOUR

T1 - Inhomogeneous magnetic structures of La0.7Ca0.3MnO3 investigated by ESR and magnetization measurements

AU - Joh, Keon Woo

AU - Lee, Chang Hoon

AU - Lee, Cheol Eui

AU - Jeong, Yoon Hee

AU - Hong, C. S.

AU - Hur, Nam Hwi

PY - 2000

Y1 - 2000

N2 - Comprehensive measurements of electron spin resonance and magnetization of La0.7Ca0.3MnO3 in the ferromagnetic as well as paramagnetic phases were carried out. From the quantitative analysis of the ESR signal, attributed to itinerant spins and localized spins in the bottleneck regime, evidences for the inhomogeneous nature of both phases, consisting of clusters of one phase embedded in the other, were found. It is suggested that the microscopic local magnetic structures above and below Tc are qualitatively similar except that the phase below Tc carries long range order.

AB - Comprehensive measurements of electron spin resonance and magnetization of La0.7Ca0.3MnO3 in the ferromagnetic as well as paramagnetic phases were carried out. From the quantitative analysis of the ESR signal, attributed to itinerant spins and localized spins in the bottleneck regime, evidences for the inhomogeneous nature of both phases, consisting of clusters of one phase embedded in the other, were found. It is suggested that the microscopic local magnetic structures above and below Tc are qualitatively similar except that the phase below Tc carries long range order.

UR - http://www.scopus.com/inward/record.url?scp=0034428920&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0034428920

SN - 0272-9172

VL - 602

SP - 159

EP - 166

JO - Materials Research Society Symposium Proceedings

JF - Materials Research Society Symposium Proceedings

ER -

Inhomogeneous magnetic structures of La_0.7Ca_0.3MnO₃ investigated by ESR and magnetization measurements

Abstract

ASJC Scopus subject areas

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