Magnetic relaxation in La0.250Pr0.375Ca0.375MnO3 with varying phase separation

I. G. Deac; I. G. Deac; S. V. Diaz; S. V. Diaz; B. G. Kim; S. W. Cheong; P. Schiffer

doi:10.1103/PhysRevB.65.174426

Magnetic relaxation in La_0.250Pr_0.375Ca_0.375MnO₃ with varying phase separation

I. G. Deac, I. G. Deac, S. V. Diaz, S. V. Diaz, B. G. Kim, S. W. Cheong, P. Schiffer

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70 Scopus citations

Abstract

We have studied the magnetic relaxation properties of the phase-separated manganite compound La_0.250Pr_0.375Ca_0.375MnO₃. A series of polycrystalline samples was prepared with different sintering temperatures, resulting in a continuous variation of phase fraction between metallic (ferromagnetic) and charge-ordered phases at low temperatures. Measurements of the magnetic viscosity show a temperature and field dependence which can be correlated to the static properties. Common to all the samples, there appears to be two types of relaxation processes: at low fields associated with the reorientation of ferromagnetic domains and at higher fields associated with the transformation between ferromagnetic and nonferromagnetic phases.

Original language	English (US)
Article number	174426
Pages (from-to)	1744261-1744266
Number of pages	6
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	65
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.65.174426
State	Published - May 1 2002
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.65.174426

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title = "Magnetic relaxation in La0.250Pr0.375Ca0.375MnO3 with varying phase separation",

abstract = "We have studied the magnetic relaxation properties of the phase-separated manganite compound La0.250Pr0.375Ca0.375MnO3. A series of polycrystalline samples was prepared with different sintering temperatures, resulting in a continuous variation of phase fraction between metallic (ferromagnetic) and charge-ordered phases at low temperatures. Measurements of the magnetic viscosity show a temperature and field dependence which can be correlated to the static properties. Common to all the samples, there appears to be two types of relaxation processes: at low fields associated with the reorientation of ferromagnetic domains and at higher fields associated with the transformation between ferromagnetic and nonferromagnetic phases.",

author = "Deac, {I. G.} and Deac, {I. G.} and Diaz, {S. V.} and Diaz, {S. V.} and Kim, {B. G.} and Cheong, {S. W.} and P. Schiffer",

year = "2002",

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T1 - Magnetic relaxation in La0.250Pr0.375Ca0.375MnO3 with varying phase separation

AU - Deac, I. G.

AU - Diaz, S. V.

AU - Kim, B. G.

AU - Cheong, S. W.

AU - Schiffer, P.

PY - 2002/5/1

Y1 - 2002/5/1

N2 - We have studied the magnetic relaxation properties of the phase-separated manganite compound La0.250Pr0.375Ca0.375MnO3. A series of polycrystalline samples was prepared with different sintering temperatures, resulting in a continuous variation of phase fraction between metallic (ferromagnetic) and charge-ordered phases at low temperatures. Measurements of the magnetic viscosity show a temperature and field dependence which can be correlated to the static properties. Common to all the samples, there appears to be two types of relaxation processes: at low fields associated with the reorientation of ferromagnetic domains and at higher fields associated with the transformation between ferromagnetic and nonferromagnetic phases.

AB - We have studied the magnetic relaxation properties of the phase-separated manganite compound La0.250Pr0.375Ca0.375MnO3. A series of polycrystalline samples was prepared with different sintering temperatures, resulting in a continuous variation of phase fraction between metallic (ferromagnetic) and charge-ordered phases at low temperatures. Measurements of the magnetic viscosity show a temperature and field dependence which can be correlated to the static properties. Common to all the samples, there appears to be two types of relaxation processes: at low fields associated with the reorientation of ferromagnetic domains and at higher fields associated with the transformation between ferromagnetic and nonferromagnetic phases.

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JO - Physical Review B - Condensed Matter and Materials Physics

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ER -

Magnetic relaxation in La_0.250Pr_0.375Ca_0.375MnO₃ with varying phase separation

Abstract

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