Journal article
Upper limit on spontaneous supercurrents in Sr2RuO4
Abstract
It is widely believed that the perovskite Sr2RuO4 is an unconventional superconductor with broken time-reversal symmetry. It has been predicted that superconductors with broken time-reversal symmetry should have spontaneously generated supercurrents at edges and domain walls. We have done careful imaging of the magnetic fields above Sr2RuO4 single crystals using scanning Hall bar and superconducting quantum interference device microscopies, and …
Authors
Kirtley JR; Kallin C; Hicks CW; Kim E-A; Liu Y; Moler KA; Maeno Y; Nelson KD
Journal
Physical Review B, Vol. 76, No. 1,
Publisher
American Physical Society (APS)
Publication Date
July 1, 2007
DOI
10.1103/physrevb.76.014526
ISSN
2469-9950