Antiferromagnetic metallic state in doped manganites

T. Akimoto; Y. Maruyama; Y. Moritomo; A. Nakamura; K. Hirota; K. Ohoyama; M. Ohashi

Antiferromagnetic metallic state in doped manganites

T. Akimoto, Y. Maruyama, Y. Moritomo, A. Nakamura, K. Hirota, K. Ohoyama, M. Ohashi

Tohoku University

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

163 Citations (Scopus)

Abstract

Electronic and magnetic properties are systematically investigated for doped manganites R_1-xSr_xMnO₃ (R = La_1-zNd_z) by changing the nominal hole concentration x and the averaged ionic radius of the perovskite A site (z), or the one-electron bandwidth W. In the heavily doped region (x≥0.50), we observed a layered-type (A-type) antiferromagnetic state with metallic conductivity (p≈4 × 10^-4 Ω cm at 5 K for La_0.46Sr_0.54MnO₃). This observation suggests that the antiferromagnetic metallic (AFM) state is the alternative ground state for doped manganites, besides the ferromagnetic metallic (FM) state.

Original language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	57
Issue number	10
Publication status	Published - 1998 Mar 1

ASJC Scopus subject areas

Condensed Matter Physics

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abstract = "Electronic and magnetic properties are systematically investigated for doped manganites R1-xSrxMnO3 (R = La1-zNdz) by changing the nominal hole concentration x and the averaged ionic radius of the perovskite A site (z), or the one-electron bandwidth W. In the heavily doped region (x≥0.50), we observed a layered-type (A-type) antiferromagnetic state with metallic conductivity (p≈4 × 10-4 Ω cm at 5 K for La0.46Sr0.54MnO3). This observation suggests that the antiferromagnetic metallic (AFM) state is the alternative ground state for doped manganites, besides the ferromagnetic metallic (FM) state.",

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T1 - Antiferromagnetic metallic state in doped manganites

AU - Akimoto, T.

AU - Maruyama, Y.

AU - Moritomo, Y.

AU - Nakamura, A.

AU - Hirota, K.

AU - Ohoyama, K.

AU - Ohashi, M.

PY - 1998/3/1

Y1 - 1998/3/1

N2 - Electronic and magnetic properties are systematically investigated for doped manganites R1-xSrxMnO3 (R = La1-zNdz) by changing the nominal hole concentration x and the averaged ionic radius of the perovskite A site (z), or the one-electron bandwidth W. In the heavily doped region (x≥0.50), we observed a layered-type (A-type) antiferromagnetic state with metallic conductivity (p≈4 × 10-4 Ω cm at 5 K for La0.46Sr0.54MnO3). This observation suggests that the antiferromagnetic metallic (AFM) state is the alternative ground state for doped manganites, besides the ferromagnetic metallic (FM) state.

AB - Electronic and magnetic properties are systematically investigated for doped manganites R1-xSrxMnO3 (R = La1-zNdz) by changing the nominal hole concentration x and the averaged ionic radius of the perovskite A site (z), or the one-electron bandwidth W. In the heavily doped region (x≥0.50), we observed a layered-type (A-type) antiferromagnetic state with metallic conductivity (p≈4 × 10-4 Ω cm at 5 K for La0.46Sr0.54MnO3). This observation suggests that the antiferromagnetic metallic (AFM) state is the alternative ground state for doped manganites, besides the ferromagnetic metallic (FM) state.

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Antiferromagnetic metallic state in doped manganites

Abstract

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