Short-range charge order correlations in Sm1-xSrxMnO3 near a half-doped composition revealed by EPR

A. I. Shames; A. Yakubovsky; V. Amelichev; O. Gorbenko; A. Kaul

doi:10.1016/S0038-1098(01)00472-0

Short-range charge order correlations in Sm_1-xSr_xMnO₃ near a half-doped composition revealed by EPR

A. I. Shames
, A. Yakubovsky
, V. Amelichev
, O. Gorbenko
, A. Kaul

Department of Physics

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

21 Scopus citations

Abstract

EPR study of polycrystalline Sm_1-xSr_xMnO₃ samples (x=0.40, 0.45, 0.50) within the temperature range 100-500K has revealed some details of its phase diagram. A change of the first-order ferromagnetic transition at T_C≈130K (for x=0.40, 0.45) into the second-order one (for x=0.50) was clearly demonstrated. Analysis of the EPR line intensities reveal a charge ordering above 250K for all the compositions in spite of its short-range nature. For x=0.50 composition, a short-range antiferromagnetic ordering was also found below 170K. The latter might be responsible for suppression of the first-order type of the ferromagnetic transition.

Original language	English
Pages (from-to)	103-106
Number of pages	4
Journal	Solid State Communications
Volume	121
Issue number	2-3
DOIs	https://doi.org/10.1016/S0038-1098(01)00472-0
State	Published - 2 Jan 2002

Keywords

A. Magnetic materials
B. EPR
C. Magnetic phase transitions
D. Charge ordering

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/S0038-1098(01)00472-0

Cite this

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title = "Short-range charge order correlations in Sm1-xSrxMnO3 near a half-doped composition revealed by EPR",

abstract = "EPR study of polycrystalline Sm1-xSrxMnO3 samples (x=0.40, 0.45, 0.50) within the temperature range 100-500K has revealed some details of its phase diagram. A change of the first-order ferromagnetic transition at TC≈130K (for x=0.40, 0.45) into the second-order one (for x=0.50) was clearly demonstrated. Analysis of the EPR line intensities reveal a charge ordering above 250K for all the compositions in spite of its short-range nature. For x=0.50 composition, a short-range antiferromagnetic ordering was also found below 170K. The latter might be responsible for suppression of the first-order type of the ferromagnetic transition.",

keywords = "A. Magnetic materials, B. EPR, C. Magnetic phase transitions, D. Charge ordering",

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T1 - Short-range charge order correlations in Sm1-xSrxMnO3 near a half-doped composition revealed by EPR

AU - Shames, A. I.

AU - Yakubovsky, A.

AU - Amelichev, V.

AU - Gorbenko, O.

AU - Kaul, A.

PY - 2002/1/2

Y1 - 2002/1/2

N2 - EPR study of polycrystalline Sm1-xSrxMnO3 samples (x=0.40, 0.45, 0.50) within the temperature range 100-500K has revealed some details of its phase diagram. A change of the first-order ferromagnetic transition at TC≈130K (for x=0.40, 0.45) into the second-order one (for x=0.50) was clearly demonstrated. Analysis of the EPR line intensities reveal a charge ordering above 250K for all the compositions in spite of its short-range nature. For x=0.50 composition, a short-range antiferromagnetic ordering was also found below 170K. The latter might be responsible for suppression of the first-order type of the ferromagnetic transition.

AB - EPR study of polycrystalline Sm1-xSrxMnO3 samples (x=0.40, 0.45, 0.50) within the temperature range 100-500K has revealed some details of its phase diagram. A change of the first-order ferromagnetic transition at TC≈130K (for x=0.40, 0.45) into the second-order one (for x=0.50) was clearly demonstrated. Analysis of the EPR line intensities reveal a charge ordering above 250K for all the compositions in spite of its short-range nature. For x=0.50 composition, a short-range antiferromagnetic ordering was also found below 170K. The latter might be responsible for suppression of the first-order type of the ferromagnetic transition.

KW - A. Magnetic materials

KW - B. EPR

KW - C. Magnetic phase transitions

KW - D. Charge ordering

UR - https://www.scopus.com/pages/publications/0037005695

U2 - 10.1016/S0038-1098(01)00472-0

DO - 10.1016/S0038-1098(01)00472-0

M3 - Article

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SN - 0038-1098

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EP - 106

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