NMR study on high-TC cuprate TlBa2(Y1-xCax)Cu2O7 with the wide range of hole concentration from antiferromagnetic to overdoped region

Y. Kunii; T. Suzuki; A. Kakishima; T. Goto; S. Nakajima; T. Fukase

doi:10.1016/S0022-3697(02)00087-2

NMR study on high-T_C cuprate TlBa₂(Y_1-xCa_x)Cu₂O₇ with the wide range of hole concentration from antiferromagnetic to overdoped region

Y. Kunii, T. Suzuki, A. Kakishima, T. Goto, S. Nakajima, T. Fukase

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

3 Citations (Scopus)

Abstract

Tl-NMR spectra and the spin-lattice relaxation rate have been measured for Tl-based high-T_C cuprate TlBa₂(Y_1-xCa_x)Cu₂O₇ with a wide region of the hole concentration from antiferromagnetic (x = 0) to slightly overdoped (x = 1). On doping, the superconducting transition temperature T_C is raised abruptly from 0 to 100 K at x = 0.6. In the entire superconducting region of x = 0.6-1.0, the Knight shift is temperature independent of the normal state, showing no traces of the spin-gap. The spin-lattice relaxation rate shows a spin-gap around 150 K, which is much higher than T_C. These two facts in striking contrast indicate that the lightly doped region does not exist or is confined within an extremely narrow region of Ca-concentration.

Original language	English
Pages (from-to)	1085-1087
Number of pages	3
Journal	Journal of Physics and Chemistry of Solids
Volume	63
Issue number	6-8
DOIs	https://doi.org/10.1016/S0022-3697(02)00087-2
Publication status	Published - 2002
Externally published	Yes

Keywords

A. Oxides
D. Magnetic properties
D. NMR
D. Superconductivity

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/S0022-3697(02)00087-2

Cite this

@article{f6c920fda00d4b53ac84412fb2b1a62e,

title = "NMR study on high-TC cuprate TlBa2(Y1-xCax)Cu2O7 with the wide range of hole concentration from antiferromagnetic to overdoped region",

abstract = "Tl-NMR spectra and the spin-lattice relaxation rate have been measured for Tl-based high-TC cuprate TlBa2(Y1-xCax)Cu2O7 with a wide region of the hole concentration from antiferromagnetic (x = 0) to slightly overdoped (x = 1). On doping, the superconducting transition temperature TC is raised abruptly from 0 to 100 K at x = 0.6. In the entire superconducting region of x = 0.6-1.0, the Knight shift is temperature independent of the normal state, showing no traces of the spin-gap. The spin-lattice relaxation rate shows a spin-gap around 150 K, which is much higher than TC. These two facts in striking contrast indicate that the lightly doped region does not exist or is confined within an extremely narrow region of Ca-concentration.",

keywords = "A. Oxides, D. Magnetic properties, D. NMR, D. Superconductivity",

author = "Y. Kunii and T. Suzuki and A. Kakishima and T. Goto and S. Nakajima and T. Fukase",

note = "Funding Information: This work is supported by Toray Science Foundation, Shimadzu Science Foundation, Casio Science Foundation, Iketani Science Foundation, and the Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports and Culture. A part of this work has been performed at High Field Laboratory for Superconducting Materials (HFLSM), IMR, Tohoku University. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

year = "2002",

doi = "10.1016/S0022-3697(02)00087-2",

language = "English",

volume = "63",

pages = "1085--1087",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Limited",

number = "6-8",

}

TY - JOUR

T1 - NMR study on high-TC cuprate TlBa2(Y1-xCax)Cu2O7 with the wide range of hole concentration from antiferromagnetic to overdoped region

AU - Kunii, Y.

AU - Suzuki, T.

AU - Kakishima, A.

AU - Goto, T.

AU - Nakajima, S.

AU - Fukase, T.

N1 - Funding Information: This work is supported by Toray Science Foundation, Shimadzu Science Foundation, Casio Science Foundation, Iketani Science Foundation, and the Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports and Culture. A part of this work has been performed at High Field Laboratory for Superconducting Materials (HFLSM), IMR, Tohoku University. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 2002

Y1 - 2002

N2 - Tl-NMR spectra and the spin-lattice relaxation rate have been measured for Tl-based high-TC cuprate TlBa2(Y1-xCax)Cu2O7 with a wide region of the hole concentration from antiferromagnetic (x = 0) to slightly overdoped (x = 1). On doping, the superconducting transition temperature TC is raised abruptly from 0 to 100 K at x = 0.6. In the entire superconducting region of x = 0.6-1.0, the Knight shift is temperature independent of the normal state, showing no traces of the spin-gap. The spin-lattice relaxation rate shows a spin-gap around 150 K, which is much higher than TC. These two facts in striking contrast indicate that the lightly doped region does not exist or is confined within an extremely narrow region of Ca-concentration.

AB - Tl-NMR spectra and the spin-lattice relaxation rate have been measured for Tl-based high-TC cuprate TlBa2(Y1-xCax)Cu2O7 with a wide region of the hole concentration from antiferromagnetic (x = 0) to slightly overdoped (x = 1). On doping, the superconducting transition temperature TC is raised abruptly from 0 to 100 K at x = 0.6. In the entire superconducting region of x = 0.6-1.0, the Knight shift is temperature independent of the normal state, showing no traces of the spin-gap. The spin-lattice relaxation rate shows a spin-gap around 150 K, which is much higher than TC. These two facts in striking contrast indicate that the lightly doped region does not exist or is confined within an extremely narrow region of Ca-concentration.

KW - A. Oxides

KW - D. Magnetic properties

KW - D. NMR

KW - D. Superconductivity

UR - http://www.scopus.com/inward/record.url?scp=0036602601&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036602601&partnerID=8YFLogxK

U2 - 10.1016/S0022-3697(02)00087-2

DO - 10.1016/S0022-3697(02)00087-2

M3 - Article

AN - SCOPUS:0036602601

SN - 0022-3697

VL - 63

SP - 1085

EP - 1087

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 6-8

ER -