Field-induced orbital order-disorder transition in an A-type antiferromagnetic manganite: High-field study of Nd0.45Sr0.55MnO3

T. Hayashi; N. Miura; K. Noda; H. Kuwahara; S. Okamoto; S. Ishihara; S. Maekawa

Field-induced orbital order-disorder transition in an A-type antiferromagnetic manganite: High-field study of Nd_0.45Sr_0.55MnO₃

T. Hayashi, N. Miura, K. Noda, H. Kuwahara, S. Okamoto, S. Ishihara, S. Maekawa

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12 Scopus citations

Abstract

Magnetization and magnetoresistance were measured in A-type antiferromagnet Nd_0.45Sr_0.55MnO₃ utilizing pulsed magnetic fields up to 45 T. We have observed a ferromagnetic transition accompanied by a discontinuous decrease of resistivity. The temperature dependence of the resistivity in the ferromagnetic state showed characteristics of a three-dimensional metal. The observed phenomena are explained in terms of simultaneous destruction of the d_x2-_y2 orbital ordering and the A-type antiferromagnetic spin ordering by magnetic field.

Original language	English
Article number	024408
Pages (from-to)	244081-244085
Number of pages	5
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	65
Issue number	2
State	Published - Jan 1 2002
Externally published	Yes

Cite this

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abstract = "Magnetization and magnetoresistance were measured in A-type antiferromagnet Nd0.45Sr0.55MnO3 utilizing pulsed magnetic fields up to 45 T. We have observed a ferromagnetic transition accompanied by a discontinuous decrease of resistivity. The temperature dependence of the resistivity in the ferromagnetic state showed characteristics of a three-dimensional metal. The observed phenomena are explained in terms of simultaneous destruction of the dx2-y2 orbital ordering and the A-type antiferromagnetic spin ordering by magnetic field.",

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T2 - High-field study of Nd0.45Sr0.55MnO3

AU - Hayashi, T.

AU - Miura, N.

AU - Noda, K.

AU - Kuwahara, H.

AU - Okamoto, S.

AU - Ishihara, S.

AU - Maekawa, S.

PY - 2002/1/1

Y1 - 2002/1/1

N2 - Magnetization and magnetoresistance were measured in A-type antiferromagnet Nd0.45Sr0.55MnO3 utilizing pulsed magnetic fields up to 45 T. We have observed a ferromagnetic transition accompanied by a discontinuous decrease of resistivity. The temperature dependence of the resistivity in the ferromagnetic state showed characteristics of a three-dimensional metal. The observed phenomena are explained in terms of simultaneous destruction of the dx2-y2 orbital ordering and the A-type antiferromagnetic spin ordering by magnetic field.

AB - Magnetization and magnetoresistance were measured in A-type antiferromagnet Nd0.45Sr0.55MnO3 utilizing pulsed magnetic fields up to 45 T. We have observed a ferromagnetic transition accompanied by a discontinuous decrease of resistivity. The temperature dependence of the resistivity in the ferromagnetic state showed characteristics of a three-dimensional metal. The observed phenomena are explained in terms of simultaneous destruction of the dx2-y2 orbital ordering and the A-type antiferromagnetic spin ordering by magnetic field.

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SN - 0163-1829

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

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ER -

Field-induced orbital order-disorder transition in an A-type antiferromagnetic manganite: High-field study of Nd_0.45Sr_0.55MnO₃

Abstract

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