Ellipsometry and broken time-reversal symmetry in the high-temperature superconductors

Journal Article · Tue Dec 01 00:00:00 EST 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.46.14078· OSTI ID:7155570

Canright, G S; Rojo, A G ^[1]

---

1. Department of Physics, University of Tennessee, Knoxville, Tennessee 37996-1200 (United States) Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

We discuss ellipsometric experiments seeking evidence of broken time-reversal symmetry in the high-temperature copper oxide superconductors. We use both a generalized symmetry analysis, and a magnetoelectric model suggested by Dzyaloshinskii, to argue that the hypothesis that best fits the various experimental results is the [ital scrPscrT]-invariance hypothesis---which assumes broken [ital scrT] symmetry in each plane, and antiferromagnetic (alternating) order of the broken symmetry in the [ital c] direction. We suggest two experimental tests of the [ital scrPscrT]-invariant model; one of these is sufficient to rule out any other broken-symmetry state and so has the potential to be extremely useful.

• OSTI ID: 7155570
• Journal Information: Physical Review, B: Condensed Matter; (United States), Vol. 46:21; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SUPERCONDUCTORS
SYMMETRY BREAKING
COPPER OXIDES
DOPED MATERIALS
ELLIPSOMETRY
ORDER PARAMETERS
CHALCOGENIDES
COPPER COMPOUNDS
MATERIALS
MEASURING METHODS
OXIDES
OXYGEN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
665411* - Basic Superconductivity Studies- (1992-)