Glassy behavior of La0.8Ca0.2MnO3 nanoparticles

V. Markovich; G. Jung; A. Wisniewski; R. Puzniak; I. Fita; Y. Yuzhelevski; D. Mogilyansky; L. Titelman; G. Gorodetsky

doi:10.1007/s10948-010-1032-1

Glassy behavior of La_0.8Ca_0.2MnO₃ nanoparticles

V. Markovich, G. Jung, A. Wisniewski, R. Puzniak, I. Fita, Y. Yuzhelevski, D. Mogilyansky, L. Titelman, G. Gorodetsky

Department of Physics

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

6 Scopus citations

Abstract

Magnetic and transport properties of La_0.8Ca _0.2MnO₃ nanoparticles with average size of 18 nm and Curie temperature T_C ≈ 231 K have been studied. Pronounced irreversibility of magnetization below T_irr ≈ 208 K has been observed. Studied particles have shown memory effects in zero-field-cooled and field-cooled magnetization. The resistivity has a semiconducting character at 150 < T < 300 K and exhibits relaxation and memory effects below the Curie temperature. The results suggest that superspin-glass features in ensembles of interacting 18 nm La_0.8Ca_0.2MnO₃ particles appear along with superferromagnetic-like features.

Original language	English
Pages (from-to)	861-865
Number of pages	5
Journal	Journal of Superconductivity and Novel Magnetism
Volume	24
Issue number	1-2
DOIs	https://doi.org/10.1007/s10948-010-1032-1
State	Published - 1 Jan 2011

Keywords

Manganites
Nanoparticles
Size effect
Spin-glass

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1007/s10948-010-1032-1

Cite this

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title = "Glassy behavior of La0.8Ca0.2MnO3 nanoparticles",

abstract = "Magnetic and transport properties of La0.8Ca 0.2MnO3 nanoparticles with average size of 18 nm and Curie temperature TC ≈ 231 K have been studied. Pronounced irreversibility of magnetization below Tirr ≈ 208 K has been observed. Studied particles have shown memory effects in zero-field-cooled and field-cooled magnetization. The resistivity has a semiconducting character at 150 < T < 300 K and exhibits relaxation and memory effects below the Curie temperature. The results suggest that superspin-glass features in ensembles of interacting 18 nm La0.8Ca0.2MnO3 particles appear along with superferromagnetic-like features.",

keywords = "Manganites, Nanoparticles, Size effect, Spin-glass",

author = "V. Markovich and G. Jung and A. Wisniewski and R. Puzniak and I. Fita and Y. Yuzhelevski and D. Mogilyansky and L. Titelman and G. Gorodetsky",

note = "Funding Information: Acknowledgements This work was supported in part by the Polish Ministry of Science and Higher Education under a research project no. N N202 1037 36 and by the Israeli Science Foundation administered by the Israel Academy of Sciences and Humanities grant 754/09.",

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T1 - Glassy behavior of La0.8Ca0.2MnO3 nanoparticles

AU - Markovich, V.

AU - Jung, G.

AU - Wisniewski, A.

AU - Puzniak, R.

AU - Fita, I.

AU - Yuzhelevski, Y.

AU - Mogilyansky, D.

AU - Titelman, L.

AU - Gorodetsky, G.

N1 - Funding Information: Acknowledgements This work was supported in part by the Polish Ministry of Science and Higher Education under a research project no. N N202 1037 36 and by the Israeli Science Foundation administered by the Israel Academy of Sciences and Humanities grant 754/09.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - Magnetic and transport properties of La0.8Ca 0.2MnO3 nanoparticles with average size of 18 nm and Curie temperature TC ≈ 231 K have been studied. Pronounced irreversibility of magnetization below Tirr ≈ 208 K has been observed. Studied particles have shown memory effects in zero-field-cooled and field-cooled magnetization. The resistivity has a semiconducting character at 150 < T < 300 K and exhibits relaxation and memory effects below the Curie temperature. The results suggest that superspin-glass features in ensembles of interacting 18 nm La0.8Ca0.2MnO3 particles appear along with superferromagnetic-like features.

AB - Magnetic and transport properties of La0.8Ca 0.2MnO3 nanoparticles with average size of 18 nm and Curie temperature TC ≈ 231 K have been studied. Pronounced irreversibility of magnetization below Tirr ≈ 208 K has been observed. Studied particles have shown memory effects in zero-field-cooled and field-cooled magnetization. The resistivity has a semiconducting character at 150 < T < 300 K and exhibits relaxation and memory effects below the Curie temperature. The results suggest that superspin-glass features in ensembles of interacting 18 nm La0.8Ca0.2MnO3 particles appear along with superferromagnetic-like features.

KW - Manganites

KW - Nanoparticles

KW - Size effect

KW - Spin-glass

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