Anomalous longitudinal nuclear spin relaxation in TlBa2(Ca,Y) Cu2O7 at the non-superconducting phase boundary

Yuuji Kunii, Takao Suzuki, Takayuki Goto, Satoru Nakajima

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Tl-based high-TC cuprate TlBa2Ca1-xY xCu2O7 (Tl1212) shows an anomalous electronic phase diagram, in which the non-superconducting phase persists on hole doping until x = 0.6 where TC abruptly jumps to 96 K. Around the critical hole concentration, Tl nuclear relaxation curves follow a so-called stretched-exponential function, suggesting that the doped holes are localized in small islands. This microscopic inhomogeneity in hole distribution is considered to be the origin of anomalous suppression of the superconductivity in the lightly doped region.

Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2004 May
Externally publishedYes

Fingerprint

Hole concentration
Exponential functions
Phase boundaries
Superconductivity
nuclear spin
Phase diagrams
Doping (additives)
hole distribution
nuclear relaxation
exponential functions
cuprates
inhomogeneity
superconductivity
phase diagrams
retarding
curves
electronics

Keywords

  • NMR
  • Tl-based high-T cuprate

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Anomalous longitudinal nuclear spin relaxation in TlBa2(Ca,Y) Cu2O7 at the non-superconducting phase boundary. / Kunii, Yuuji; Suzuki, Takao; Goto, Takayuki; Nakajima, Satoru.

In: Journal of Magnetism and Magnetic Materials, Vol. 272-276, No. SUPPL. 1, 05.2004.

Research output: Contribution to journalArticle

@article{af9a07c324ed4e2c871a26848fcbccda,
title = "Anomalous longitudinal nuclear spin relaxation in TlBa2(Ca,Y) Cu2O7 at the non-superconducting phase boundary",
abstract = "Tl-based high-TC cuprate TlBa2Ca1-xY xCu2O7 (Tl1212) shows an anomalous electronic phase diagram, in which the non-superconducting phase persists on hole doping until x = 0.6 where TC abruptly jumps to 96 K. Around the critical hole concentration, Tl nuclear relaxation curves follow a so-called stretched-exponential function, suggesting that the doped holes are localized in small islands. This microscopic inhomogeneity in hole distribution is considered to be the origin of anomalous suppression of the superconductivity in the lightly doped region.",
keywords = "NMR, Tl-based high-T cuprate",
author = "Yuuji Kunii and Takao Suzuki and Takayuki Goto and Satoru Nakajima",
year = "2004",
month = "5",
doi = "10.1016/j.jmmm.2003.12.321",
language = "English",
volume = "272-276",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",
number = "SUPPL. 1",

}

TY - JOUR

T1 - Anomalous longitudinal nuclear spin relaxation in TlBa2(Ca,Y) Cu2O7 at the non-superconducting phase boundary

AU - Kunii, Yuuji

AU - Suzuki, Takao

AU - Goto, Takayuki

AU - Nakajima, Satoru

PY - 2004/5

Y1 - 2004/5

N2 - Tl-based high-TC cuprate TlBa2Ca1-xY xCu2O7 (Tl1212) shows an anomalous electronic phase diagram, in which the non-superconducting phase persists on hole doping until x = 0.6 where TC abruptly jumps to 96 K. Around the critical hole concentration, Tl nuclear relaxation curves follow a so-called stretched-exponential function, suggesting that the doped holes are localized in small islands. This microscopic inhomogeneity in hole distribution is considered to be the origin of anomalous suppression of the superconductivity in the lightly doped region.

AB - Tl-based high-TC cuprate TlBa2Ca1-xY xCu2O7 (Tl1212) shows an anomalous electronic phase diagram, in which the non-superconducting phase persists on hole doping until x = 0.6 where TC abruptly jumps to 96 K. Around the critical hole concentration, Tl nuclear relaxation curves follow a so-called stretched-exponential function, suggesting that the doped holes are localized in small islands. This microscopic inhomogeneity in hole distribution is considered to be the origin of anomalous suppression of the superconductivity in the lightly doped region.

KW - NMR

KW - Tl-based high-T cuprate

UR - http://www.scopus.com/inward/record.url?scp=23144437514&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=23144437514&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2003.12.321

DO - 10.1016/j.jmmm.2003.12.321

M3 - Article

VL - 272-276

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - SUPPL. 1

ER -