FMR probing of 'spontaneous' and Ru-doping induced ferromagnetism in Sm0.2Ca0.8Mn1-xRuxO3 (x ≤ 0.08) manganites

A. I. Shames; E. Rozenberg; V. Markovich; M. Auslender; A. Yakubovsky; A. Maignan; C. Martin; B. Raveau; G. Gorodetsky

doi:10.1016/S0038-1098(03)00183-2

FMR probing of 'spontaneous' and Ru-doping induced ferromagnetism in Sm_0.2Ca_0.8Mn_1-xRu_xO₃ (x ≤ 0.08) manganites

A. I. Shames, E. Rozenberg, V. Markovich, M. Auslender, A. Yakubovsky, A. Maignan, C. Martin, B. Raveau, G. Gorodetsky

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

16 Scopus citations

Abstract

The FMR spectra of electron-doped Sm_0.2Ca_0.8Mn_1-xRu_xO₃ (0 ≤ x ≤ 0.08) system are measured and analyzed in the temperature interval 100 ≤ T ≤ 320 K, including all critical points of magnetic transitions. It is shown that the origin of macroscopic magnetization in the parent Sm_0.2Ca_0.8MnO₃ and Ru-doped compounds is essentially different. The bound magnetic polarons formation at temperatures below the Neel point is suggested to be responsible for the appearance of a minute 'spontaneous' magnetic moment in Sm_0.2Ca_0.8MnO₃. Doping with Ru induces formation of 'conventional' ferromagnetic phase in antiferromagnetic matrix. Such a phase is characterized by a Curie temperature, which is higher than the Neel temperature of the matrix. Magnetic phase diagrams of Sm_0.2Ca_0.8Mn_1-xRu_xO₃ determined by ferromagnetic resonance and dc magnetic measurements are discussed.

Original language	English
Pages (from-to)	395-399
Number of pages	5
Journal	Solid State Communications
Volume	126
Issue number	7
DOIs	https://doi.org/10.1016/S0038-1098(03)00183-2
State	Published - 1 May 2003

Keywords

A. Ferromagnetic and electron paramagnetic resonance
B. Electron-doped manganites
C. Magnetic phase diagrams

ASJC Scopus subject areas

Chemistry (all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/S0038-1098(03)00183-2

Cite this

@article{1c9fec8dadd649d3a0747f793c7572ba,

title = "FMR probing of 'spontaneous' and Ru-doping induced ferromagnetism in Sm0.2Ca0.8Mn1-xRuxO3 (x ≤ 0.08) manganites",

abstract = "The FMR spectra of electron-doped Sm0.2Ca0.8Mn1-xRuxO3 (0 ≤ x ≤ 0.08) system are measured and analyzed in the temperature interval 100 ≤ T ≤ 320 K, including all critical points of magnetic transitions. It is shown that the origin of macroscopic magnetization in the parent Sm0.2Ca0.8MnO3 and Ru-doped compounds is essentially different. The bound magnetic polarons formation at temperatures below the Neel point is suggested to be responsible for the appearance of a minute 'spontaneous' magnetic moment in Sm0.2Ca0.8MnO3. Doping with Ru induces formation of 'conventional' ferromagnetic phase in antiferromagnetic matrix. Such a phase is characterized by a Curie temperature, which is higher than the Neel temperature of the matrix. Magnetic phase diagrams of Sm0.2Ca0.8Mn1-xRuxO3 determined by ferromagnetic resonance and dc magnetic measurements are discussed.",

keywords = "A. Ferromagnetic and electron paramagnetic resonance, B. Electron-doped manganites, C. Magnetic phase diagrams",

author = "Shames, {A. I.} and E. Rozenberg and V. Markovich and M. Auslender and A. Yakubovsky and A. Maignan and C. Martin and B. Raveau and G. Gorodetsky",

note = "Funding Information: Authors thank Dr. I. Fita (Institute of Physics, PAN, Warsaw) and Dr. W. Kempi{\'n}sky (Institute of Molecular Physics, PAN, Pozna{\'n}) for their help in magnetic and in low temperature FMR measurements, respectively. This work was supported by the Israeli Science Foundation administered by the Israel Academy of Sciences and Humanities (grant 209/01).",

year = "2003",

month = may,

day = "1",

doi = "10.1016/S0038-1098(03)00183-2",

language = "English",

volume = "126",

pages = "395--399",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd.",

number = "7",

}

TY - JOUR

T1 - FMR probing of 'spontaneous' and Ru-doping induced ferromagnetism in Sm0.2Ca0.8Mn1-xRuxO3 (x ≤ 0.08) manganites

AU - Shames, A. I.

AU - Rozenberg, E.

AU - Markovich, V.

AU - Auslender, M.

AU - Yakubovsky, A.

AU - Maignan, A.

AU - Martin, C.

AU - Raveau, B.

AU - Gorodetsky, G.

N1 - Funding Information: Authors thank Dr. I. Fita (Institute of Physics, PAN, Warsaw) and Dr. W. Kempińsky (Institute of Molecular Physics, PAN, Poznań) for their help in magnetic and in low temperature FMR measurements, respectively. This work was supported by the Israeli Science Foundation administered by the Israel Academy of Sciences and Humanities (grant 209/01).

PY - 2003/5/1

Y1 - 2003/5/1

N2 - The FMR spectra of electron-doped Sm0.2Ca0.8Mn1-xRuxO3 (0 ≤ x ≤ 0.08) system are measured and analyzed in the temperature interval 100 ≤ T ≤ 320 K, including all critical points of magnetic transitions. It is shown that the origin of macroscopic magnetization in the parent Sm0.2Ca0.8MnO3 and Ru-doped compounds is essentially different. The bound magnetic polarons formation at temperatures below the Neel point is suggested to be responsible for the appearance of a minute 'spontaneous' magnetic moment in Sm0.2Ca0.8MnO3. Doping with Ru induces formation of 'conventional' ferromagnetic phase in antiferromagnetic matrix. Such a phase is characterized by a Curie temperature, which is higher than the Neel temperature of the matrix. Magnetic phase diagrams of Sm0.2Ca0.8Mn1-xRuxO3 determined by ferromagnetic resonance and dc magnetic measurements are discussed.

AB - The FMR spectra of electron-doped Sm0.2Ca0.8Mn1-xRuxO3 (0 ≤ x ≤ 0.08) system are measured and analyzed in the temperature interval 100 ≤ T ≤ 320 K, including all critical points of magnetic transitions. It is shown that the origin of macroscopic magnetization in the parent Sm0.2Ca0.8MnO3 and Ru-doped compounds is essentially different. The bound magnetic polarons formation at temperatures below the Neel point is suggested to be responsible for the appearance of a minute 'spontaneous' magnetic moment in Sm0.2Ca0.8MnO3. Doping with Ru induces formation of 'conventional' ferromagnetic phase in antiferromagnetic matrix. Such a phase is characterized by a Curie temperature, which is higher than the Neel temperature of the matrix. Magnetic phase diagrams of Sm0.2Ca0.8Mn1-xRuxO3 determined by ferromagnetic resonance and dc magnetic measurements are discussed.

KW - A. Ferromagnetic and electron paramagnetic resonance

KW - B. Electron-doped manganites

KW - C. Magnetic phase diagrams

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U2 - 10.1016/S0038-1098(03)00183-2

DO - 10.1016/S0038-1098(03)00183-2

M3 - Article

AN - SCOPUS:0037405591

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EP - 399

JO - Solid State Communications

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