Polar Kerr-effect measurements of the high-temperature YBa2Cu3O6+x superconductor: Evidence for broken symmetry near the pseudogap temperature

Jing Xia; Elizabeth Schemm; G. Deutscher; S.A. Kivelson; D.A. Bonn; W.N. Hardy; R. Liang; W. Siemons; Gertjan Koster; M.M. Fejer; A. Kapitulnik

doi:10.1103/PhysRevLett.100.127002

Polar Kerr-effect measurements of the high-temperature YBa2Cu3O6+x superconductor: Evidence for broken symmetry near the pseudogap temperature

Jing Xia
, Elizabeth Schemm
, G. Deutscher
, S.A. Kivelson
, D.A. Bonn
, W.N. Hardy
, R. Liang
, W. Siemons
, Gertjan Koster
, M.M. Fejer
, A. Kapitulnik

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

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Abstract

The polar Kerr effect in the high-Tc superconductor YBa2Cu3O6+x was measured at zero magnetic field with high precision using a cyogenic Sagnac fiber interferometer. We observed nonzero Kerr rotations of order ~1 µrad appearing near the pseudogap temperature T* and marking what appears to be a true phase transition. Anomalous magnetic behavior in magnetic-field training of the effect suggests that time reversal symmetry is already broken above room temperature.

Original language	English
Pages (from-to)	127002-
Number of pages	4
Journal	Physical review letters
Volume	100
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.100.127002
Publication status	Published - 2008

Keywords

METIS-252601
IR-59281

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10.1103/PhysRevLett.100.127002

polar_kerr-effect

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Xia, J., Schemm, E., Deutscher, G., Kivelson, S. A., Bonn, D. A., Hardy, W. N., Liang, R., Siemons, W., Koster, G., Fejer, M. M., & Kapitulnik, A. (2008). Polar Kerr-effect measurements of the high-temperature YBa2Cu3O6+x superconductor: Evidence for broken symmetry near the pseudogap temperature. Physical review letters, 100(12), 127002-. https://doi.org/10.1103/PhysRevLett.100.127002

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title = "Polar Kerr-effect measurements of the high-temperature YBa2Cu3O6+x superconductor: Evidence for broken symmetry near the pseudogap temperature",

abstract = "The polar Kerr effect in the high-Tc superconductor YBa2Cu3O6+x was measured at zero magnetic field with high precision using a cyogenic Sagnac fiber interferometer. We observed nonzero Kerr rotations of order \textasciitilde{}1 µrad appearing near the pseudogap temperature T* and marking what appears to be a true phase transition. Anomalous magnetic behavior in magnetic-field training of the effect suggests that time reversal symmetry is already broken above room temperature.",

keywords = "METIS-252601, IR-59281",

author = "Jing Xia and Elizabeth Schemm and G. Deutscher and S.A. Kivelson and D.A. Bonn and W.N. Hardy and R. Liang and W. Siemons and Gertjan Koster and M.M. Fejer and A. Kapitulnik",

year = "2008",

doi = "10.1103/PhysRevLett.100.127002",

language = "English",

volume = "100",

pages = "127002--",

journal = "Physical review letters",

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}

Xia, J, Schemm, E, Deutscher, G, Kivelson, SA, Bonn, DA, Hardy, WN, Liang, R, Siemons, W, Koster, G, Fejer, MM & Kapitulnik, A 2008, 'Polar Kerr-effect measurements of the high-temperature YBa2Cu3O6+x superconductor: Evidence for broken symmetry near the pseudogap temperature', Physical review letters, vol. 100, no. 12, pp. 127002-. https://doi.org/10.1103/PhysRevLett.100.127002

TY - JOUR

T1 - Polar Kerr-effect measurements of the high-temperature YBa2Cu3O6+x superconductor

T2 - Evidence for broken symmetry near the pseudogap temperature

AU - Xia, Jing

AU - Schemm, Elizabeth

AU - Deutscher, G.

AU - Kivelson, S.A.

AU - Bonn, D.A.

AU - Hardy, W.N.

AU - Liang, R.

AU - Siemons, W.

AU - Koster, Gertjan

AU - Fejer, M.M.

AU - Kapitulnik, A.

PY - 2008

Y1 - 2008

N2 - The polar Kerr effect in the high-Tc superconductor YBa2Cu3O6+x was measured at zero magnetic field with high precision using a cyogenic Sagnac fiber interferometer. We observed nonzero Kerr rotations of order ~1 µrad appearing near the pseudogap temperature T* and marking what appears to be a true phase transition. Anomalous magnetic behavior in magnetic-field training of the effect suggests that time reversal symmetry is already broken above room temperature.

AB - The polar Kerr effect in the high-Tc superconductor YBa2Cu3O6+x was measured at zero magnetic field with high precision using a cyogenic Sagnac fiber interferometer. We observed nonzero Kerr rotations of order ~1 µrad appearing near the pseudogap temperature T* and marking what appears to be a true phase transition. Anomalous magnetic behavior in magnetic-field training of the effect suggests that time reversal symmetry is already broken above room temperature.

KW - METIS-252601

KW - IR-59281

U2 - 10.1103/PhysRevLett.100.127002

DO - 10.1103/PhysRevLett.100.127002

M3 - Article

SN - 0031-9007

VL - 100

SP - 127002-

JO - Physical review letters

JF - Physical review letters

IS - 12

ER -

Polar Kerr-effect measurements of the high-temperature YBa2Cu3O6+x superconductor: Evidence for broken symmetry near the pseudogap temperature

Abstract

Keywords

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