Open AccessOrigin of the insulating state in exfoliatedhigh- T c
Author(s) -
Luke J. Sandilands,
Anjan Reijnders,
Alexander Su,
Viktoriya Baydina,
Zhijun Xu,
Alina Yang,
Genda Gu,
Tor Pedersen,
Ferenc Borondics,
Kenneth S. Burch
Publication year - 2014
Publication title -
physical review b
Language(s) - English
Resource type - Journals
eISSN - 1538-4489
pISSN - 1098-0121
DOI - 10.1103/physrevb.90.081402
Subject(s) - physics , materials science
An optical spectroscopic study of exfoliated two-dimensional atomic crystals of Bi${}_{2}$Sr${}_{2}$CaCu${}_{2}$O${}_{8+\ensuremath{\delta}}$ reveals a pronounced suppression of optical conductivity with thickness. Through detailed analysis, the authors interpret this finding as the formation of an insulating surface layer.
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