NQR study of high-Tc superconductor TlSr2CaCu2O7-δ

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

doi:10.1016/0921-4534(91)91606-5

NQR study of high-T_c superconductor TlSr₂CaCu₂O_7-δ

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

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

3 Citations (Scopus)

Abstract

⁶³Cu NQR measurement has been carried out in superconducting and nonsuperconducting (metallic) TlSr₂CaCu₂O_7-δ. In the superconducting material, 1/T₁ follows the T₁T=const. relation only in a narrow temperature range above T_c, suggesting the existence of the AF spin fluctuation. The reduction of 1/T₁T observation the non-superconducting sample suggests that the suppression of the spin fluctuation by the overdoped hole destroys the superconductivity.

Original language	English
Pages (from-to)	765-766
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	185-189
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4534(91)91606-5
Publication status	Published - Dec 1 1991
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(91)91606-5

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@article{64e4430294b44c2692fbf2f93cbeffd1,

title = "NQR study of high-Tc superconductor TlSr2CaCu2O7-δ",

abstract = "63Cu NQR measurement has been carried out in superconducting and nonsuperconducting (metallic) TlSr2CaCu2O7-δ. In the superconducting material, 1/T1 follows the T1T=const. relation only in a narrow temperature range above Tc, suggesting the existence of the AF spin fluctuation. The reduction of 1/T1T observation the non-superconducting sample suggests that the suppression of the spin fluctuation by the overdoped hole destroys the superconductivity.",

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

note = "Funding Information: 3. Conclusion We have measured v Q and I/T 1 for 63Cu in superconducting and non-Superconducting TISr2CaCu207_ ~ . In the superconducting material, 1/T 1 follows the TiT=const. relation only in a narrow temperature range above T c. This result together with the reduction of 1/TIT observed in the nonsuperconducting sample seems to support that the AF spin fluctuation is related to the occurrence of superconductivity. Acknowledgment: This work was partially supported by a Grant-in-Aid from the Ministry of Education, Science and Culture of Japan.",

year = "1991",

month = dec,

day = "1",

doi = "10.1016/0921-4534(91)91606-5",

language = "English",

volume = "185-189",

pages = "765--766",

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

issn = "0921-4534",

publisher = "Elsevier",

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TY - JOUR

T1 - NQR study of high-Tc superconductor TlSr2CaCu2O7-δ

AU - Zheng, G. q.

AU - Kitaoka, Y.

AU - Asayama, K.

AU - Kondo, T.

AU - Shimakawa, Y.

AU - Manako, T.

AU - Kubo, Y.

N1 - Funding Information: 3. Conclusion We have measured v Q and I/T 1 for 63Cu in superconducting and non-Superconducting TISr2CaCu207_ ~ . In the superconducting material, 1/T 1 follows the TiT=const. relation only in a narrow temperature range above T c. This result together with the reduction of 1/TIT observed in the nonsuperconducting sample seems to support that the AF spin fluctuation is related to the occurrence of superconductivity. Acknowledgment: This work was partially supported by a Grant-in-Aid from the Ministry of Education, Science and Culture of Japan.

PY - 1991/12/1

Y1 - 1991/12/1

N2 - 63Cu NQR measurement has been carried out in superconducting and nonsuperconducting (metallic) TlSr2CaCu2O7-δ. In the superconducting material, 1/T1 follows the T1T=const. relation only in a narrow temperature range above Tc, suggesting the existence of the AF spin fluctuation. The reduction of 1/T1T observation the non-superconducting sample suggests that the suppression of the spin fluctuation by the overdoped hole destroys the superconductivity.

AB - 63Cu NQR measurement has been carried out in superconducting and nonsuperconducting (metallic) TlSr2CaCu2O7-δ. In the superconducting material, 1/T1 follows the T1T=const. relation only in a narrow temperature range above Tc, suggesting the existence of the AF spin fluctuation. The reduction of 1/T1T observation the non-superconducting sample suggests that the suppression of the spin fluctuation by the overdoped hole destroys the superconductivity.

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U2 - 10.1016/0921-4534(91)91606-5

DO - 10.1016/0921-4534(91)91606-5

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JO - Physica C: Superconductivity and its Applications

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SN - 0921-4534

IS - PART 2

ER -

NQR study of high-T_c superconductor TlSr₂CaCu₂O_7-δ

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