Two-dimensional anisotropy in a layered metallic antiferromagnet RE1-xSrxMnO3 with x ∼ 1/2

H. Kawano; R. Kajimoto; H. Yoshizawa; J. A. Fernandez-Baca; Y. Tomioka; H. Kuwahara; Y. Tokura

doi:10.1016/S0921-4526(97)00569-3

Two-dimensional anisotropy in a layered metallic antiferromagnet RE_1-xSr_xMnO₃ with x ∼ 1/2

H. Kawano, R. Kajimoto, H. Yoshizawa, J. A. Fernandez-Baca, Y. Tomioka, H. Kuwahara, Y. Tokura

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8 Scopus citations

Abstract

Some RE_1-xSr_xMnO₃ (RE = Nd, Pr) systems with x ∼ 1/2 exhibit an A-type antiferromagnetic (AFM) structure instead of the expected CE-type magnetic structure. This can be understood as being a consequence of the increase of the bandwidth (W). These A-type magnetic systems also show salient features in their crystal structures. We propose a two-dimensional anisotropy of the transport as well as the magnetic properties for the A-type AFM structure and we show that we have, indeed, observed anisotropic spin wave dispersion relations by inelastic neutron measurements.

Original language	English
Pages (from-to)	289-294
Number of pages	6
Journal	Physica B: Physics of Condensed Matter
Volume	241-243
DOIs	https://doi.org/10.1016/S0921-4526(97)00569-3
State	Published - 1997

Funding

This work was supported by a Grant-In-Aid for Scientific Research from the Ministry of Education, Science and Culture, Japan, by Special Researcher's Basic Science Program (RIKEN) and by the New Energy and Industrial Technology Development Organization (NEDO) of Japan. The work at ORNL was supported by US DOE under contract No. DE-AC05-96OR22464 with Lockheed Martin Energy Research corporation and was carried out under the US-Japan Cooperative Program on Neutron Scattering.

Funders	Funder number
U.S. Department of Energy	DE-AC05-96OR22464
Ministry of Education, Culture, Sports, Science and Technology
New Energy and Industrial Technology Development Organization
RIKEN

Keywords

Charge ordering
Metal-insulator transition
Mott insulator

Access to Document

10.1016/S0921-4526(97)00569-3

Cite this

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title = "Two-dimensional anisotropy in a layered metallic antiferromagnet RE1-xSrxMnO3 with x ∼ 1/2",

abstract = "Some RE1-xSrxMnO3 (RE = Nd, Pr) systems with x ∼ 1/2 exhibit an A-type antiferromagnetic (AFM) structure instead of the expected CE-type magnetic structure. This can be understood as being a consequence of the increase of the bandwidth (W). These A-type magnetic systems also show salient features in their crystal structures. We propose a two-dimensional anisotropy of the transport as well as the magnetic properties for the A-type AFM structure and we show that we have, indeed, observed anisotropic spin wave dispersion relations by inelastic neutron measurements.",

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T1 - Two-dimensional anisotropy in a layered metallic antiferromagnet RE1-xSrxMnO3 with x ∼ 1/2

AU - Kawano, H.

AU - Kajimoto, R.

AU - Yoshizawa, H.

AU - Fernandez-Baca, J. A.

AU - Tomioka, Y.

AU - Kuwahara, H.

AU - Tokura, Y.

PY - 1997

Y1 - 1997

N2 - Some RE1-xSrxMnO3 (RE = Nd, Pr) systems with x ∼ 1/2 exhibit an A-type antiferromagnetic (AFM) structure instead of the expected CE-type magnetic structure. This can be understood as being a consequence of the increase of the bandwidth (W). These A-type magnetic systems also show salient features in their crystal structures. We propose a two-dimensional anisotropy of the transport as well as the magnetic properties for the A-type AFM structure and we show that we have, indeed, observed anisotropic spin wave dispersion relations by inelastic neutron measurements.

AB - Some RE1-xSrxMnO3 (RE = Nd, Pr) systems with x ∼ 1/2 exhibit an A-type antiferromagnetic (AFM) structure instead of the expected CE-type magnetic structure. This can be understood as being a consequence of the increase of the bandwidth (W). These A-type magnetic systems also show salient features in their crystal structures. We propose a two-dimensional anisotropy of the transport as well as the magnetic properties for the A-type AFM structure and we show that we have, indeed, observed anisotropic spin wave dispersion relations by inelastic neutron measurements.

KW - Charge ordering

KW - Metal-insulator transition

KW - Mott insulator

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