Irreversibility, remanence, and Griffiths phase in Sm0.1Ca 0.9MnO3 nanoparticles

V. Markovich; R. Puzniak; I. Fita; A. Wisniewski; D. Mogilyansky; B. Dolgin; G. Gorodetsky; G. Jung

doi:10.1063/1.4811445

Irreversibility, remanence, and Griffiths phase in Sm_0.1Ca _0.9MnO₃ nanoparticles

V. Markovich, R. Puzniak, I. Fita, A. Wisniewski, D. Mogilyansky, B. Dolgin, G. Gorodetsky, G. Jung

Department of Physics

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

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Abstract

Magnetic properties of compacted Sm_0.1Ca_0.9MnO ₃ particles with 25 and 60 nm average sizes have been investigated. Particular attention has been paid to Griffiths-like features at temperatures above magnetic transition temperature T_C and to the system glassiness at low temperatures. Griffiths-like features in inverse magnetic susceptibility of Sm_0.1Ca_0.9MnO₃ nanoparticles have been linked to the presence of short range ferromagnetically correlated spin clusters above T_C. Glassy behavior has been revealed in temperature and frequency dependence of ac-susceptibility, temperature and field dependence of thermoremanent and isothermoremanent magnetization, and time decay of the remanent magnetization. Experiments revealed the major impact of the glassy component on magnetic properties of investigated nanoparticles. The magnetic relaxation associated with glassy features was found to be much more pronounced in smaller particles, where a formation of collective state in an ensemble of phase separated nanoparticles may take place. Thermomagnetic irreversibility found in Sm_0.1Ca_0.9MnO₃ nanoparticles has been linked to martensitic strain effects.

Original language	English
Article number	233911
Journal	Journal of Applied Physics
Volume	113
Issue number	23
DOIs	https://doi.org/10.1063/1.4811445
State	Published - 21 Jun 2013

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Physics and Astronomy (all)

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title = "Irreversibility, remanence, and Griffiths phase in Sm0.1Ca 0.9MnO3 nanoparticles",

abstract = "Magnetic properties of compacted Sm0.1Ca0.9MnO 3 particles with 25 and 60 nm average sizes have been investigated. Particular attention has been paid to Griffiths-like features at temperatures above magnetic transition temperature TC and to the system glassiness at low temperatures. Griffiths-like features in inverse magnetic susceptibility of Sm0.1Ca0.9MnO3 nanoparticles have been linked to the presence of short range ferromagnetically correlated spin clusters above TC. Glassy behavior has been revealed in temperature and frequency dependence of ac-susceptibility, temperature and field dependence of thermoremanent and isothermoremanent magnetization, and time decay of the remanent magnetization. Experiments revealed the major impact of the glassy component on magnetic properties of investigated nanoparticles. The magnetic relaxation associated with glassy features was found to be much more pronounced in smaller particles, where a formation of collective state in an ensemble of phase separated nanoparticles may take place. Thermomagnetic irreversibility found in Sm0.1Ca0.9MnO3 nanoparticles has been linked to martensitic strain effects.",

author = "V. Markovich and R. Puzniak and I. Fita and A. Wisniewski and D. Mogilyansky and B. Dolgin and G. Gorodetsky and G. Jung",

note = "Funding Information: This work was supported in part by the Polish Ministry of Science and Higher Education under a research Project No. N202103736, by Polish NCN Grant 2012/05/B/ST3/03157, by European Fund for Regional Development (Contract No. UDA-POIG.01.03.01-00-058/08-00), and by the Israeli Science Foundation administered by the Israel Academy of Sciences and Humanities Grant 754/09.",

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AU - Markovich, V.

AU - Puzniak, R.

AU - Fita, I.

AU - Wisniewski, A.

AU - Mogilyansky, D.

AU - Dolgin, B.

AU - Gorodetsky, G.

AU - Jung, G.

N1 - Funding Information: This work was supported in part by the Polish Ministry of Science and Higher Education under a research Project No. N202103736, by Polish NCN Grant 2012/05/B/ST3/03157, by European Fund for Regional Development (Contract No. UDA-POIG.01.03.01-00-058/08-00), and by the Israeli Science Foundation administered by the Israel Academy of Sciences and Humanities Grant 754/09.

PY - 2013/6/21

Y1 - 2013/6/21

N2 - Magnetic properties of compacted Sm0.1Ca0.9MnO 3 particles with 25 and 60 nm average sizes have been investigated. Particular attention has been paid to Griffiths-like features at temperatures above magnetic transition temperature TC and to the system glassiness at low temperatures. Griffiths-like features in inverse magnetic susceptibility of Sm0.1Ca0.9MnO3 nanoparticles have been linked to the presence of short range ferromagnetically correlated spin clusters above TC. Glassy behavior has been revealed in temperature and frequency dependence of ac-susceptibility, temperature and field dependence of thermoremanent and isothermoremanent magnetization, and time decay of the remanent magnetization. Experiments revealed the major impact of the glassy component on magnetic properties of investigated nanoparticles. The magnetic relaxation associated with glassy features was found to be much more pronounced in smaller particles, where a formation of collective state in an ensemble of phase separated nanoparticles may take place. Thermomagnetic irreversibility found in Sm0.1Ca0.9MnO3 nanoparticles has been linked to martensitic strain effects.

AB - Magnetic properties of compacted Sm0.1Ca0.9MnO 3 particles with 25 and 60 nm average sizes have been investigated. Particular attention has been paid to Griffiths-like features at temperatures above magnetic transition temperature TC and to the system glassiness at low temperatures. Griffiths-like features in inverse magnetic susceptibility of Sm0.1Ca0.9MnO3 nanoparticles have been linked to the presence of short range ferromagnetically correlated spin clusters above TC. Glassy behavior has been revealed in temperature and frequency dependence of ac-susceptibility, temperature and field dependence of thermoremanent and isothermoremanent magnetization, and time decay of the remanent magnetization. Experiments revealed the major impact of the glassy component on magnetic properties of investigated nanoparticles. The magnetic relaxation associated with glassy features was found to be much more pronounced in smaller particles, where a formation of collective state in an ensemble of phase separated nanoparticles may take place. Thermomagnetic irreversibility found in Sm0.1Ca0.9MnO3 nanoparticles has been linked to martensitic strain effects.

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Irreversibility, remanence, and Griffiths phase in Sm_0.1Ca _0.9MnO₃ nanoparticles

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