Magnetic correlations and spin dynamics in CaMn0.96Mo 0.04O3 manganite compound: EPR study

Evgeny Rosenberg; Mark Auslender; Alexander Shames; C. Martin; S. H́bert

doi:10.1063/1.2829025

Magnetic correlations and spin dynamics in CaMn_0.96Mo _0.04O₃ manganite compound: EPR study

Evgeny Rosenberg, Mark Auslender, Alexander Shames, C. Martin, S. H́bert

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

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Abstract

To study magnetic correlations and spin dynamics of Ca Mn0.96 Mo0.04 O3 (CMMO) compound at paramagnetic (PM) state and to probe its low temperature magnetic ordering, X -band electron magnetic resonance (EMR) measurements were performed in 5 K≤T≤600 K interval. The model fittings of EPR peak-to-peak linewidth and double integrated intensity reveal an existence of antiferromagnetic (AFM) and ferromagnetic (FM) correlations at PM state. The enhancement of FM correlations upon cooling and its competition with AFM ones result in FM-like magnetic ground state of CMMO below 110 K. The results of EMR measurements evidence that the low temperature magnetic ground state of CMMO may be better described by complex canted magnetic structure with net FM component than by the phase separated state.

Original language	English
Article number	07F720
Journal	Journal of Applied Physics
Volume	103
Issue number	7
DOIs	https://doi.org/10.1063/1.2829025
State	Published - 21 Apr 2008
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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title = "Magnetic correlations and spin dynamics in CaMn0.96Mo 0.04O3 manganite compound: EPR study",

abstract = "To study magnetic correlations and spin dynamics of Ca Mn0.96 Mo0.04 O3 (CMMO) compound at paramagnetic (PM) state and to probe its low temperature magnetic ordering, X -band electron magnetic resonance (EMR) measurements were performed in 5 K≤T≤600 K interval. The model fittings of EPR peak-to-peak linewidth and double integrated intensity reveal an existence of antiferromagnetic (AFM) and ferromagnetic (FM) correlations at PM state. The enhancement of FM correlations upon cooling and its competition with AFM ones result in FM-like magnetic ground state of CMMO below 110 K. The results of EMR measurements evidence that the low temperature magnetic ground state of CMMO may be better described by complex canted magnetic structure with net FM component than by the phase separated state.",

author = "Evgeny Rosenberg and Mark Auslender and Alexander Shames and C. Martin and S. {\'H}bert",

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T1 - Magnetic correlations and spin dynamics in CaMn0.96Mo 0.04O3 manganite compound

T2 - EPR study

AU - Rosenberg, Evgeny

AU - Auslender, Mark

AU - Shames, Alexander

AU - Martin, C.

AU - H́bert, S.

PY - 2008/4/21

Y1 - 2008/4/21

N2 - To study magnetic correlations and spin dynamics of Ca Mn0.96 Mo0.04 O3 (CMMO) compound at paramagnetic (PM) state and to probe its low temperature magnetic ordering, X -band electron magnetic resonance (EMR) measurements were performed in 5 K≤T≤600 K interval. The model fittings of EPR peak-to-peak linewidth and double integrated intensity reveal an existence of antiferromagnetic (AFM) and ferromagnetic (FM) correlations at PM state. The enhancement of FM correlations upon cooling and its competition with AFM ones result in FM-like magnetic ground state of CMMO below 110 K. The results of EMR measurements evidence that the low temperature magnetic ground state of CMMO may be better described by complex canted magnetic structure with net FM component than by the phase separated state.

AB - To study magnetic correlations and spin dynamics of Ca Mn0.96 Mo0.04 O3 (CMMO) compound at paramagnetic (PM) state and to probe its low temperature magnetic ordering, X -band electron magnetic resonance (EMR) measurements were performed in 5 K≤T≤600 K interval. The model fittings of EPR peak-to-peak linewidth and double integrated intensity reveal an existence of antiferromagnetic (AFM) and ferromagnetic (FM) correlations at PM state. The enhancement of FM correlations upon cooling and its competition with AFM ones result in FM-like magnetic ground state of CMMO below 110 K. The results of EMR measurements evidence that the low temperature magnetic ground state of CMMO may be better described by complex canted magnetic structure with net FM component than by the phase separated state.

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Magnetic correlations and spin dynamics in CaMn_0.96Mo _0.04O₃ manganite compound: EPR study

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