NMR of high Tc superconductors

K. Asayama; Y. Kitanka; G. Q. Zheng; K. Ishida; K. Magishi; T. Mito; Y. Tokunaga

doi:10.1007/BF02548129

NMR of high T_c superconductors

K. Asayama, Y. Kitanka, G. Q. Zheng, K. Ishida, K. Magishi, T. Mito, Y. Tokunaga

Research output: Contribution to journal › Review article › peer-review

4 Citations (Scopus)

Abstract

Results of our NMR measurements of high T_c superconductors are reviewed. From systematic measurements of NQR frequency, Knight shift, nuclear spin lattice relaxation rate and nuclear transverse relaxation rate over a wide hole concentration range from light to heavy doped compounds together with the impurity and pressure effect, following results are concluded. The numbers of the holes at the respective sites of Cu and O site in the CuO₂ plane govern the several physical properties of the system. There are optimum values of these hole numbers to produce highest T_c. The superconducting properties are well explained consistently by the d-wave pairing model. T_c is found to be correlated intimately with the antiferromagnetic spin fluctuation parameters that governs the nuclear relaxation. The mechanism for the superconductivity is magnetic in origin.

Original language	English
Pages (from-to)	3187-3194
Number of pages	8
Journal	Czechoslovak Journal of Physics
Volume	46
Issue number	SUPPL. 6
DOIs	https://doi.org/10.1007/BF02548129
Publication status	Published - 1996
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1007/BF02548129

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title = "NMR of high Tc superconductors",

abstract = "Results of our NMR measurements of high Tc superconductors are reviewed. From systematic measurements of NQR frequency, Knight shift, nuclear spin lattice relaxation rate and nuclear transverse relaxation rate over a wide hole concentration range from light to heavy doped compounds together with the impurity and pressure effect, following results are concluded. The numbers of the holes at the respective sites of Cu and O site in the CuO2 plane govern the several physical properties of the system. There are optimum values of these hole numbers to produce highest Tc. The superconducting properties are well explained consistently by the d-wave pairing model. Tc is found to be correlated intimately with the antiferromagnetic spin fluctuation parameters that governs the nuclear relaxation. The mechanism for the superconductivity is magnetic in origin.",

author = "K. Asayama and Y. Kitanka and Zheng, {G. Q.} and K. Ishida and K. Magishi and T. Mito and Y. Tokunaga",

year = "1996",

doi = "10.1007/BF02548129",

language = "English",

volume = "46",

pages = "3187--3194",

journal = "Czechoslovak Journal of Physics",

issn = "0011-4626",

publisher = "Springer Netherlands",

number = "SUPPL. 6",

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TY - JOUR

T1 - NMR of high Tc superconductors

AU - Asayama, K.

AU - Kitanka, Y.

AU - Zheng, G. Q.

AU - Ishida, K.

AU - Magishi, K.

AU - Mito, T.

AU - Tokunaga, Y.

PY - 1996

Y1 - 1996

N2 - Results of our NMR measurements of high Tc superconductors are reviewed. From systematic measurements of NQR frequency, Knight shift, nuclear spin lattice relaxation rate and nuclear transverse relaxation rate over a wide hole concentration range from light to heavy doped compounds together with the impurity and pressure effect, following results are concluded. The numbers of the holes at the respective sites of Cu and O site in the CuO2 plane govern the several physical properties of the system. There are optimum values of these hole numbers to produce highest Tc. The superconducting properties are well explained consistently by the d-wave pairing model. Tc is found to be correlated intimately with the antiferromagnetic spin fluctuation parameters that governs the nuclear relaxation. The mechanism for the superconductivity is magnetic in origin.

AB - Results of our NMR measurements of high Tc superconductors are reviewed. From systematic measurements of NQR frequency, Knight shift, nuclear spin lattice relaxation rate and nuclear transverse relaxation rate over a wide hole concentration range from light to heavy doped compounds together with the impurity and pressure effect, following results are concluded. The numbers of the holes at the respective sites of Cu and O site in the CuO2 plane govern the several physical properties of the system. There are optimum values of these hole numbers to produce highest Tc. The superconducting properties are well explained consistently by the d-wave pairing model. Tc is found to be correlated intimately with the antiferromagnetic spin fluctuation parameters that governs the nuclear relaxation. The mechanism for the superconductivity is magnetic in origin.

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U2 - 10.1007/BF02548129

DO - 10.1007/BF02548129

M3 - Review article

AN - SCOPUS:0348040672

SN - 0011-4626

VL - 46

SP - 3187

EP - 3194

JO - Czechoslovak Journal of Physics

JF - Czechoslovak Journal of Physics

IS - SUPPL. 6

ER -

NMR of high T_c superconductors

Abstract

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