63Cu-NMR Study in High-Tc Superconductor HgBa2Ca2Cu3O8+δ

K. Magishi; G. q. Zheng; Y. itaoka; K. Asayama; K. Tokiwa; A. Iyo; H. Ihara

doi:10.1515/zna-1996-5-675

⁶³Cu-NMR Study in High-T^c Superconductor HgBa₂Ca₂Cu₃O_8+δ

K. Magishi, G. q. Zheng, Y. itaoka, K. Asayama, K. Tokiwa, A. Iyo, H. Ihara

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

Abstract

The ⁶³Cu nuclear transverse relaxation rates have been measured in the normal state on both square and pyramidal CuO₂ planes in HgBa₂Ca₂Cu₃O_8+δ with T_c=133K. The Gaussian component of the spinecho decay rate, ⁶³(1/T_2G), for both sites increases with decreasing temperature, followed by a peak around T*∼150 K, indicating that the spin correlation becomes stronger with decreasing temperature. Also, it is found that the magnitude of ⁶³(1/T_2G) for a square site is larger than that for a pyramidal one, suggesting that the spin correlation in the square plane is stronger than that in the pyramidal one.

Original language	English
Pages (from-to)	801-804
Number of pages	4
Journal	Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume	51
Issue number	5-6
DOIs	https://doi.org/10.1515/zna-1996-5-675
Publication status	Published - Jun 1996
Externally published	Yes

Keywords

Cu-NMR
HgBaCaCuO
High-Tc cuprate
Spin correlation
T

ASJC Scopus subject areas

Mathematical Physics
Physics and Astronomy(all)
Physical and Theoretical Chemistry

Access to Document

10.1515/zna-1996-5-675

Cite this

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title = "63Cu-NMR Study in High-Tc Superconductor HgBa2Ca2Cu3O8+δ",

abstract = "The 63Cu nuclear transverse relaxation rates have been measured in the normal state on both square and pyramidal CuO2 planes in HgBa2Ca2Cu3O8+δ with Tc=133K. The Gaussian component of the spinecho decay rate, 63(1/T2G), for both sites increases with decreasing temperature, followed by a peak around T*∼150 K, indicating that the spin correlation becomes stronger with decreasing temperature. Also, it is found that the magnitude of 63(1/T2G) for a square site is larger than that for a pyramidal one, suggesting that the spin correlation in the square plane is stronger than that in the pyramidal one.",

keywords = "Cu-NMR, HgBaCaCuO, High-Tc cuprate, Spin correlation, T",

author = "K. Magishi and Zheng, {G. q.} and Y. itaoka and K. Asayama and K. Tokiwa and A. Iyo and H. Ihara",

year = "1996",

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language = "English",

volume = "51",

pages = "801--804",

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T1 - 63Cu-NMR Study in High-Tc Superconductor HgBa2Ca2Cu3O8+δ

AU - Magishi, K.

AU - Zheng, G. q.

AU - itaoka, Y.

AU - Asayama, K.

AU - Tokiwa, K.

AU - Iyo, A.

AU - Ihara, H.

PY - 1996/6

Y1 - 1996/6

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AB - The 63Cu nuclear transverse relaxation rates have been measured in the normal state on both square and pyramidal CuO2 planes in HgBa2Ca2Cu3O8+δ with Tc=133K. The Gaussian component of the spinecho decay rate, 63(1/T2G), for both sites increases with decreasing temperature, followed by a peak around T*∼150 K, indicating that the spin correlation becomes stronger with decreasing temperature. Also, it is found that the magnitude of 63(1/T2G) for a square site is larger than that for a pyramidal one, suggesting that the spin correlation in the square plane is stronger than that in the pyramidal one.

KW - Cu-NMR

KW - HgBaCaCuO

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KW - Spin correlation

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