63Cu NMR study in high-Tc superconductor TlSr2(Lu1-xCax)Cu2oy

K. Magishi; G. q. Zheng; Y. Kitaoka; T. Kondo; Y. Shimakawa; T. Manako; Y. Kubo

doi:10.1016/0921-4534(94)92041-9

⁶³Cu NMR study in high-T_c superconductor TlSr₂(Lu_1-xCa_x)Cu₂o_y

K. Magishi, G. q. Zheng, Y. Kitaoka, T. Kondo, Y. Shimakawa, T. Manako, Y. Kubo

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

Abstract

⁶³Cu NMR measuements have been carried out in heavily-doped TlSr₂CaCu₂O_7-δ with T_c = 70K, 52K and OK, respectively, and in lightly-doped TlSr₂(Lu_0.7Ca_0.3)Cu₂O_y with T_c = 40K under a magnetic field of 11T. From a systematic measurement of the nuclear-spin lattice relaxation rate, ⁶³(1/T₁), the antiferromagnetic (AF) spin correlation is suppressed with increasing hole content, i.e. with decreasing T_c as in the case of Tl₂Ba₂CuO_6+y. From the Knight shift measurement, it has been found that the T-independent behavior of the spin susceptibility above T_c in heavily-doped system changes into a T-decreasing one in the lightly-doped TlSr₂(Lu_0.7Ca_0.3)Cu₂O_y, which is the same as in YBa₂Cu₃O_6.63.

Original language	English
Pages (from-to)	1631-1634
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	235-240
Issue number	PART 3
DOIs	https://doi.org/10.1016/0921-4534(94)92041-9
Publication status	Published - Dec 1994
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(94)92041-9

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@article{8e569523652a45a99b377c1272491ca3,

title = "63Cu NMR study in high-Tc superconductor TlSr2(Lu1-xCax)Cu2oy",

abstract = "63Cu NMR measuements have been carried out in heavily-doped TlSr2CaCu2O7-δ with Tc = 70K, 52K and OK, respectively, and in lightly-doped TlSr2(Lu0.7Ca0.3)Cu2Oy with Tc = 40K under a magnetic field of 11T. From a systematic measurement of the nuclear-spin lattice relaxation rate, 63(1/T1), the antiferromagnetic (AF) spin correlation is suppressed with increasing hole content, i.e. with decreasing Tc as in the case of Tl2Ba2CuO6+y. From the Knight shift measurement, it has been found that the T-independent behavior of the spin susceptibility above Tc in heavily-doped system changes into a T-decreasing one in the lightly-doped TlSr2(Lu0.7Ca0.3)Cu2Oy, which is the same as in YBa2Cu3O6.63.",

author = "K. Magishi and Zheng, {G. q.} and Y. Kitaoka and T. Kondo and Y. Shimakawa and T. Manako and Y. Kubo",

year = "1994",

month = dec,

doi = "10.1016/0921-4534(94)92041-9",

language = "English",

volume = "235-240",

pages = "1631--1634",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "PART 3",

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TY - JOUR

T1 - 63Cu NMR study in high-Tc superconductor TlSr2(Lu1-xCax)Cu2oy

AU - Magishi, K.

AU - Zheng, G. q.

AU - Kitaoka, Y.

AU - Kondo, T.

AU - Shimakawa, Y.

AU - Manako, T.

AU - Kubo, Y.

PY - 1994/12

Y1 - 1994/12

N2 - 63Cu NMR measuements have been carried out in heavily-doped TlSr2CaCu2O7-δ with Tc = 70K, 52K and OK, respectively, and in lightly-doped TlSr2(Lu0.7Ca0.3)Cu2Oy with Tc = 40K under a magnetic field of 11T. From a systematic measurement of the nuclear-spin lattice relaxation rate, 63(1/T1), the antiferromagnetic (AF) spin correlation is suppressed with increasing hole content, i.e. with decreasing Tc as in the case of Tl2Ba2CuO6+y. From the Knight shift measurement, it has been found that the T-independent behavior of the spin susceptibility above Tc in heavily-doped system changes into a T-decreasing one in the lightly-doped TlSr2(Lu0.7Ca0.3)Cu2Oy, which is the same as in YBa2Cu3O6.63.

AB - 63Cu NMR measuements have been carried out in heavily-doped TlSr2CaCu2O7-δ with Tc = 70K, 52K and OK, respectively, and in lightly-doped TlSr2(Lu0.7Ca0.3)Cu2Oy with Tc = 40K under a magnetic field of 11T. From a systematic measurement of the nuclear-spin lattice relaxation rate, 63(1/T1), the antiferromagnetic (AF) spin correlation is suppressed with increasing hole content, i.e. with decreasing Tc as in the case of Tl2Ba2CuO6+y. From the Knight shift measurement, it has been found that the T-independent behavior of the spin susceptibility above Tc in heavily-doped system changes into a T-decreasing one in the lightly-doped TlSr2(Lu0.7Ca0.3)Cu2Oy, which is the same as in YBa2Cu3O6.63.

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U2 - 10.1016/0921-4534(94)92041-9

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M3 - Article

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SN - 0921-4534

VL - 235-240

SP - 1631

EP - 1634

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - PART 3

ER -

⁶³Cu NMR study in high-T_c superconductor TlSr₂(Lu_1-xCa_x)Cu₂o_y

Abstract

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