Magnetic and transport properties of (La0.4Eu 0.6)0.7Pb0.3MnO3 single crystal: The key role of intrinsic inhomogeneity

N. Volkov; G. Petrakovskii; P. Böni; E. Clementyev; K. Patrin; K. Sablina; E. Eremin; V. Vasiliev

doi:10.1016/j.jmmm.2005.10.178

Magnetic and transport properties of (La_0.4Eu _0.6)_0.7Pb_0.3MnO₃ single crystal: The key role of intrinsic inhomogeneity

N. Volkov, G. Petrakovskii, P. Böni, E. Clementyev, K. Patrin, K. Sablina, E. Eremin, V. Vasiliev

Natural Sciences

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

The magnetic and transport measurements of the mixed-valence manganite (La_0.4Eu_0.6)_0.7Pb_0.3MnO₃ have been supplemented by magnetic resonance study. Experimental data support the model of two magnetic phases coexisting in the crystal volume. Above TC=119K, up to 1.6TC ferromagnetic (FM) clusters of minority phase exist in a paramagnetic matrix of majority phase. Below TC a magnetic state represents the coexistence of two different FM phases. These phases are observed as a spatially separated due to the frustration of the FM and antiferromagnetic (AFM) exchange interactions on the phase boundaries. Phase separation state comprised of two different magnetic phases differing in the conductivity has been used to account for the peculiarities of the transport, magnetotransport, magnetic and magnetic resonance properties found in the crystal.

Original language	English
Pages (from-to)	e179-e182
Journal	Journal of Magnetism and Magnetic Materials
Volume	300
Issue number	1
DOIs	https://doi.org/10.1016/j.jmmm.2005.10.178
State	Published - May 2006
Event	Third International Symposium on Magnetism 2005 - Duration: 26 Jun 2005 → 30 Jun 2005

Keywords

CMR
Magnetic resonance
Manganites
Nonlinear conductivity
Phase separation

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10.1016/j.jmmm.2005.10.178

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title = "Magnetic and transport properties of (La0.4Eu 0.6)0.7Pb0.3MnO3 single crystal: The key role of intrinsic inhomogeneity",

abstract = "The magnetic and transport measurements of the mixed-valence manganite (La0.4Eu0.6)0.7Pb0.3MnO3 have been supplemented by magnetic resonance study. Experimental data support the model of two magnetic phases coexisting in the crystal volume. Above TC=119K, up to 1.6TC ferromagnetic (FM) clusters of minority phase exist in a paramagnetic matrix of majority phase. Below TC a magnetic state represents the coexistence of two different FM phases. These phases are observed as a spatially separated due to the frustration of the FM and antiferromagnetic (AFM) exchange interactions on the phase boundaries. Phase separation state comprised of two different magnetic phases differing in the conductivity has been used to account for the peculiarities of the transport, magnetotransport, magnetic and magnetic resonance properties found in the crystal.",

keywords = "CMR, Magnetic resonance, Manganites, Nonlinear conductivity, Phase separation",

author = "N. Volkov and G. Petrakovskii and P. B{\"o}ni and E. Clementyev and K. Patrin and K. Sablina and E. Eremin and V. Vasiliev",

note = "Funding Information: This work was supported by the by KRSF-RFBR “Enisey2005” Grant No. 05-02-97708-a.; Third International Symposium on Magnetism 2005 ; Conference date: 26-06-2005 Through 30-06-2005",

year = "2006",

month = may,

doi = "10.1016/j.jmmm.2005.10.178",

language = "English",

volume = "300",

pages = "e179--e182",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

number = "1",

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TY - JOUR

T1 - Magnetic and transport properties of (La0.4Eu 0.6)0.7Pb0.3MnO3 single crystal

T2 - Third International Symposium on Magnetism 2005

AU - Volkov, N.

AU - Petrakovskii, G.

AU - Böni, P.

AU - Clementyev, E.

AU - Patrin, K.

AU - Sablina, K.

AU - Eremin, E.

AU - Vasiliev, V.

N1 - Funding Information: This work was supported by the by KRSF-RFBR “Enisey2005” Grant No. 05-02-97708-a.

PY - 2006/5

Y1 - 2006/5

N2 - The magnetic and transport measurements of the mixed-valence manganite (La0.4Eu0.6)0.7Pb0.3MnO3 have been supplemented by magnetic resonance study. Experimental data support the model of two magnetic phases coexisting in the crystal volume. Above TC=119K, up to 1.6TC ferromagnetic (FM) clusters of minority phase exist in a paramagnetic matrix of majority phase. Below TC a magnetic state represents the coexistence of two different FM phases. These phases are observed as a spatially separated due to the frustration of the FM and antiferromagnetic (AFM) exchange interactions on the phase boundaries. Phase separation state comprised of two different magnetic phases differing in the conductivity has been used to account for the peculiarities of the transport, magnetotransport, magnetic and magnetic resonance properties found in the crystal.

AB - The magnetic and transport measurements of the mixed-valence manganite (La0.4Eu0.6)0.7Pb0.3MnO3 have been supplemented by magnetic resonance study. Experimental data support the model of two magnetic phases coexisting in the crystal volume. Above TC=119K, up to 1.6TC ferromagnetic (FM) clusters of minority phase exist in a paramagnetic matrix of majority phase. Below TC a magnetic state represents the coexistence of two different FM phases. These phases are observed as a spatially separated due to the frustration of the FM and antiferromagnetic (AFM) exchange interactions on the phase boundaries. Phase separation state comprised of two different magnetic phases differing in the conductivity has been used to account for the peculiarities of the transport, magnetotransport, magnetic and magnetic resonance properties found in the crystal.

KW - CMR

KW - Magnetic resonance

KW - Manganites

KW - Nonlinear conductivity

KW - Phase separation

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U2 - 10.1016/j.jmmm.2005.10.178

DO - 10.1016/j.jmmm.2005.10.178

M3 - Conference article

AN - SCOPUS:33644649724

SN - 0304-8853

VL - 300

SP - e179-e182

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 1

Y2 - 26 June 2005 through 30 June 2005

ER -

Magnetic and transport properties of (La_0.4Eu _0.6)_0.7Pb_0.3MnO₃ single crystal: The key role of intrinsic inhomogeneity

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Keywords

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