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Thermoelectric signatures of time-reversal symmetry breaking states in multiband superconductors | | Julien Garaud
; Mihail Silaev
; Egor Babaev
; | | Date: |
16 Jul 2015 | | Abstract: | We show that superconductors with broken time-reversal symmetry have very
specific magnetic and electric responses to inhomogeneous heating. A local hot
spot in such superconductors is surrounded by a multipolar magnetic field,
sensitive to the presence of domain walls and crystalline anisotropy of
superconducting states. A non-stationary heating process produces an electric
field and a charge imbalance in different bands. These effect can be measured
and used to distinguish $s+is$ and $s+id$ superconducting states in the
candidate materials such as Ba$_{1-x}$K$_x$Fe$_2$As$_2$. | | Source: | arXiv, 1507.4712 | | Services: | Forum | Review | PDF | Favorites | |
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