Inter-plane Coupling and Spin Gap - an NMR/NQR Look on Typical Properties of High-Temperature Superconductors

D. Brinkmann

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Inter-plane Coupling and Spin Gap - an NMR/NQR Look on Typical Properties of High-Temperature Superconductors

机译：平面间耦合和自旋间隙-NMR / NQR观察高温超导体的典型特性

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The paper discusses some NQR/NMR studies performed on Y-Ba-Cu-O superconductors at the University of Zuerich. In particular, we review studies performed in Y_2Ba_4Cu_7O_(15) by measuring various planar Cu NQR/NMR parameters: the spin-lattice relaxation time, the Knight shift and the indirect component of the Gaussian contribution to the spin-spin relaxation time. The temperature dependence of these parameters reveals a coupling between adjacent planes of a double plane. The existence of the inter-plane coupling has independently been confirmed by performing NQR Spin-Echo Double Resonance (SEDOR) experiments. The appearance of a spin gap seems to be the consequence of inter-plane coupling.

机译：本文讨论了在苏黎世大学对Y-Ba-Cu-O超导体进行的一些NQR / NMR研究。特别是，我们通过测量各种平面Cu NQR / NMR参数回顾了在Y_2Ba_4Cu_7O_（15）中进行的研究：自旋晶格弛豫时间，奈特位移和高斯对自旋自旋弛豫时间的间接贡献。这些参数的温度依赖性揭示了双平面的相邻平面之间的耦合。平面间耦合的存在已通过执行NQR自旋回波双共振（SEDOR）实验独立确认。自旋间隙的出现似乎是平面间耦合的结果。

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来源
《Zeitschrift fur Naturforschung. A, A journal of physical sciences》 |1996年第6期|p.786-792|共7页
作者
D. Brinkmann;
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作者单位

Physik-Institut, University of Zuerich, Winterthurer Strasse 190, CH-8057 Zuerich, Switzerland;

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原文格式 PDF
正文语种 eng
中图分类物理学;
关键词
NQR; NMR; high-temperature superconductors; inter-plane coupling; spin gap;

机译：NQR;NMR;高温超导体;面间耦合;自旋间隙;

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专利

1. Neutron scattering studies of spin-phonon hybridization and superconducting spin gaps in the high-temperature superconductor La_(2-x)(Sr,Ba)_xCuO_4 [J] . J. J. Wagman, J. P. Carlo, J. Gaudet, Physical review. B, Condensed Matter And Materals Physics . 2016,第9期

机译：高温超导体La_（2-x）（Sr，Ba）_xCuO_4中自旋声子杂交和超导自旋间隙的中子散射研究
2. Neutron scattering studies of spin-phonon hybridization and superconducting spin gaps in the high-temperature superconductor La2-x(Sr, Ba)(x)CuO4 [J] . Wagman J. J., Carlo J. P., Gaudet J., Physical review, B . 2016,第9期

机译：La2-x（Sr，Ba）（x）CuO4高温超导体中自旋声子杂交和超导自旋间隙的中子散射研究
3. NMR/NQR in the antiferromagnetic parent compounds of high-temperature superconductors [J] . D. Brinkmann Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2001,第1a2期

机译：高温超导体反铁磁性母体化合物中的NMR / NQR
4. Cu-NMR/NQR Studies of Spin Gap in the Edge-Sharing CuO_(2) Chains of Ca_(2+x)Y_(2-x)Cu_(5)O_(10) [C] . K. Kumagai, K. Yoshimitsu, A. Shimamura, International Conference on Low Temperature Physics . 2005

机译：Cu-NMR / NQR研究在CA_（2 + x）Y_（2-x）CU_（5）O_（10）的CA_（2 + x）y_（2-x）链中的链条中的旋转间隙
5. Application of density matrix methods to quadrupolar spins in solid state NMR and NQR. [D] . Ageev, Sergei Z. 1997

机译：密度矩阵法在固态NMR和NQR中对四极自旋的应用。
6. Superconducting properties of copper oxide high-temperature superconductors [O] . Guanhua Chen, Jean-Marc Langlois, Yuejin Guo, 1989

机译：氧化铜高温超导体的超导性能
7. The mysterious spin gap in high-temperature superconductors: New NMR/NQR studies [O] . D. Brinkmann 1998

机译：高温超导体中神秘的旋转间隙：新的NMR / NQR研究
8. Electronic properties of Y-Ba-Cu-O superconductors as seen by Cu and O NMR/NQR [R] . Brinkmann, D. 1995

机译：通过Cu和O NmR / NQR观察到的Y-Ba-Cu-O超导体的电子特性

Inter-plane Coupling and Spin Gap - an NMR/NQR Look on Typical Properties of High-Temperature Superconductors

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