Polar Kerr Effect as Probe for Time-Reversal Symmetry Breaking in Unconventional Superconductors

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The search for broken time reversal symmetry (TRSB) in unconventional superconductors intensified in the past year as more systems have been predicted to possess such a state. Following our pioneering study of TRSB states in Sr{sub 2}RuO{sub 4} using magneto-optic probes, we embarked on a systematic study of several other of these candidate systems. The primary instrument for our studies is the Sagnac magneto-optic interferometer, which we recently developed. This instrument can measure magneto-optic Faraday or Kerr effects with an unprecedented sensitivity of 10 nanoradians at temperatures as low as 100 mK. In this paper we review our recent studies ... continued below

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Kapitulnik, A. May 26, 2010.

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The search for broken time reversal symmetry (TRSB) in unconventional superconductors intensified in the past year as more systems have been predicted to possess such a state. Following our pioneering study of TRSB states in Sr{sub 2}RuO{sub 4} using magneto-optic probes, we embarked on a systematic study of several other of these candidate systems. The primary instrument for our studies is the Sagnac magneto-optic interferometer, which we recently developed. This instrument can measure magneto-optic Faraday or Kerr effects with an unprecedented sensitivity of 10 nanoradians at temperatures as low as 100 mK. In this paper we review our recent studies of TRSB in several systems, emphasizing the study of the pseudogap state of high temperature superconductors and the inverse proximity effect in superconductor/ferromagnet proximity structures.

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  • Journal Name: Submitted to New Journal of Physics

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  • Report No.: SLAC-PUB-14083
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 981388
  • Archival Resource Key: ark:/67531/metadc1015409

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  • May 26, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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  • Nov. 3, 2017, 1:29 p.m.

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Kapitulnik, A. Polar Kerr Effect as Probe for Time-Reversal Symmetry Breaking in Unconventional Superconductors, article, May 26, 2010; [California]. (digital.library.unt.edu/ark:/67531/metadc1015409/: accessed November 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.