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-Tc cuprates

Strongly Correlated Electrons 2015-05-13 v1 Statistical Mechanics

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

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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 La2-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 x=0.12. This incoherent structure is considered to play a key role for the slight depression of the superconductivity around x=1/8.

Keywords

phase transitions superconductivity

Cite

@article{arxiv.0802.3240,
  title  = {NMR study on the local structure in La-based high-Tc cuprates},
  author = {T. Goto and J. Tonishi and T. Suzuki and A. Oosawa and M. Fujita and K. Yamada and T. Adachi and Y. Koike},
  journal= {arXiv preprint arXiv:0802.3240},
  year   = {2015}
}

Comments

7 pages, 6 figures, proceeding of LEHTSC2007, to appear in J. Phys.: Conf. Series

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