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Title: Search for anomalous internal magnetic fields in high- T sub c superconductors as evidence for broken time-reversal symmetry

Abstract

Several recent models of high-{ital T}{sub {ital c}} superconductivity predict static internal magnetic fields along the {ital c} axis due to spontaneously broken parity and time-reversal symmetries. Muon spin relaxation has been used to study the internal fields in {ital c}-axis-oriented samples of sintered YBa{sub 2}Cu{sub 3}O{sub 7} and of thick-film Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}. The magnitude, anisotropy, and temperature dependence of the observed fields favor a nuclear dipolar origin. Any anomalous fields at {mu}{sup +} sites in bulk CuO{sub 2} superconductors must be {approx lt}0.08 mT.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]; ; ; ;  [2] more »; ;  [3] « less
  1. TRIUMF, Canadian Institute for Advanced Research, University of British Columbia, Vancouver, British Columbia V6R2A3 (Canada) Department of Physics, University of British Columbia, Vancouver, British Columbia, V6R2A3 (Canada)
  2. Department of Physics, Columbia University, New York, New York 10027 (USA)
  3. General Electric Corporation, Research and Development, Schenectady, New York 12301 (USA)
Publication Date:
OSTI Identifier:
7155024
Resource Type:
Journal Article
Journal Name:
Physical Review Letters; (USA)
Additional Journal Information:
Journal Volume: 64:17; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BARIUM OXIDES; MAGNETIC FIELDS; BISMUTH OXIDES; CALCIUM OXIDES; COPPER OXIDES; STRONTIUM OXIDES; YTTRIUM OXIDES; DIPOLE MOMENTS; EXPERIMENTAL DATA; FILMS; LOW TEMPERATURE; MAGNETIC MOMENTS; MEDIUM TEMPERATURE; MUON SPIN RELAXATION; NUCLEI; SINTERING; SUPERCONDUCTORS; SYMMETRY BREAKING; T INVARIANCE; TEMPERATURE DEPENDENCE; ULTRALOW TEMPERATURE; VERY LOW TEMPERATURE; ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; DATA; FABRICATION; INFORMATION; INVARIANCE PRINCIPLES; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; RELAXATION; STRONTIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; 360204* - Ceramics, Cermets, & Refractories- Physical Properties

Citation Formats

Kiefl, R F, Brewer, J H, Affleck, I, Carolan, J F, Dosanjh, P, Hardy, W N, Hsu, T, Kadono, R, Kempton, J R, Kreitzman, S R, Li, Q, O'Reilly, A H, Riseman, T M, Schleger, P, Stamp, P C.E., Zhou, H, Le, L P, Luke, G M, Sternlieb, B, Uemura, Y J, Hart, H R, and Lay, K W. Search for anomalous internal magnetic fields in high- T sub c superconductors as evidence for broken time-reversal symmetry. United States: N. p., 1990. Web. doi:10.1103/PhysRevLett.64.2082.
Kiefl, R F, Brewer, J H, Affleck, I, Carolan, J F, Dosanjh, P, Hardy, W N, Hsu, T, Kadono, R, Kempton, J R, Kreitzman, S R, Li, Q, O'Reilly, A H, Riseman, T M, Schleger, P, Stamp, P C.E., Zhou, H, Le, L P, Luke, G M, Sternlieb, B, Uemura, Y J, Hart, H R, & Lay, K W. Search for anomalous internal magnetic fields in high- T sub c superconductors as evidence for broken time-reversal symmetry. United States. https://doi.org/10.1103/PhysRevLett.64.2082
Kiefl, R F, Brewer, J H, Affleck, I, Carolan, J F, Dosanjh, P, Hardy, W N, Hsu, T, Kadono, R, Kempton, J R, Kreitzman, S R, Li, Q, O'Reilly, A H, Riseman, T M, Schleger, P, Stamp, P C.E., Zhou, H, Le, L P, Luke, G M, Sternlieb, B, Uemura, Y J, Hart, H R, and Lay, K W. Mon . "Search for anomalous internal magnetic fields in high- T sub c superconductors as evidence for broken time-reversal symmetry". United States. https://doi.org/10.1103/PhysRevLett.64.2082.
@article{osti_7155024,
title = {Search for anomalous internal magnetic fields in high- T sub c superconductors as evidence for broken time-reversal symmetry},
author = {Kiefl, R F and Brewer, J H and Affleck, I and Carolan, J F and Dosanjh, P and Hardy, W N and Hsu, T and Kadono, R and Kempton, J R and Kreitzman, S R and Li, Q and O'Reilly, A H and Riseman, T M and Schleger, P and Stamp, P C.E. and Zhou, H and Le, L P and Luke, G M and Sternlieb, B and Uemura, Y J and Hart, H R and Lay, K W},
abstractNote = {Several recent models of high-{ital T}{sub {ital c}} superconductivity predict static internal magnetic fields along the {ital c} axis due to spontaneously broken parity and time-reversal symmetries. Muon spin relaxation has been used to study the internal fields in {ital c}-axis-oriented samples of sintered YBa{sub 2}Cu{sub 3}O{sub 7} and of thick-film Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}. The magnitude, anisotropy, and temperature dependence of the observed fields favor a nuclear dipolar origin. Any anomalous fields at {mu}{sup +} sites in bulk CuO{sub 2} superconductors must be {approx lt}0.08 mT.},
doi = {10.1103/PhysRevLett.64.2082},
url = {https://www.osti.gov/biblio/7155024}, journal = {Physical Review Letters; (USA)},
issn = {0031-9007},
number = ,
volume = 64:17,
place = {United States},
year = {1990},
month = {4}
}