NMR study on the local structure in La-based high-Tc cuprates

T. Goto; J. Tonishi; T. Suzuki; A. Oosawa; M. Fujita; K. Yamada; T. Adachi; Y. Koike

doi:10.1088/1742-6596/108/1/012007

NMR study on the local structure in La-based high-T_c cuprates

T. Goto, J. Tonishi, T. Suzuki, A. Oosawa, M. Fujita, K. Yamada, T. Adachi, Y. Koike

Materials Property Division

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

2 Citations (Scopus)

Abstract

To date, there has been no evidence for the macroscopic structural phase transition to the low temperature tetragonal structure (LTT) with a space group P4₂/ncm in high-T_C cuprate of rare earth-free La _2-xSr_xCuO₄ (LSCO). By investigating Cu-NMR on single crystals, we have found that spatially incoherent LTT structure emerges below 50 K in the sample with x0.12. This incoherent structure is considered to play a key role for the slight depression of the superconductivity around x1/8.

Original language	English
Article number	012007
Journal	Journal of Physics: Conference Series
Volume	108
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/108/1/012007
Publication status	Published - 2008 Mar 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1088/1742-6596/108/1/012007

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abstract = "To date, there has been no evidence for the macroscopic structural phase transition to the low temperature tetragonal structure (LTT) with a space group P42/ncm in high-TC cuprate of rare earth-free La 2-xSrxCuO4 (LSCO). By investigating Cu-NMR on single crystals, we have found that spatially incoherent LTT structure emerges below 50 K in the sample with x0.12. This incoherent structure is considered to play a key role for the slight depression of the superconductivity around x1/8.",

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AU - Goto, T.

AU - Tonishi, J.

AU - Suzuki, T.

AU - Oosawa, A.

AU - Fujita, M.

AU - Yamada, K.

AU - Adachi, T.

AU - Koike, Y.

PY - 2008/3/1

Y1 - 2008/3/1

N2 - To date, there has been no evidence for the macroscopic structural phase transition to the low temperature tetragonal structure (LTT) with a space group P42/ncm in high-TC cuprate of rare earth-free La 2-xSrxCuO4 (LSCO). By investigating Cu-NMR on single crystals, we have found that spatially incoherent LTT structure emerges below 50 K in the sample with x0.12. This incoherent structure is considered to play a key role for the slight depression of the superconductivity around x1/8.

AB - To date, there has been no evidence for the macroscopic structural phase transition to the low temperature tetragonal structure (LTT) with a space group P42/ncm in high-TC cuprate of rare earth-free La 2-xSrxCuO4 (LSCO). By investigating Cu-NMR on single crystals, we have found that spatially incoherent LTT structure emerges below 50 K in the sample with x0.12. This incoherent structure is considered to play a key role for the slight depression of the superconductivity around x1/8.

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NMR study on the local structure in La-based high-T_c cuprates

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