Parity violation in a single domain of spin-triplet superconductors

Autor:	Kazuhiko Yamaya, Hiroshi Amitsuka, Yasuhiro Asano, Koichi Ichimura, Hiroyoshi Nobukane, Kenichi Tenya, Satoshi Tanda, Ikuto Kawasaki, Katsuhiko Inagaki, Kohkichi Konno, S. Takayanagi
Rok vydání:	2009
Předmět:	Physics Superconductivity Condensed matter physics Parity (physics) Biasing General Chemistry Invariant (physics) Condensed Matter Physics Vortex Hopf invariant Condensed Matter::Superconductivity Quantum mechanics Materials Chemistry Even and odd functions Single domain
Zdroj:	Solid State Communications. 149:1212-1215
ISSN:	0038-1098
DOI:	10.1016/j.ssc.2009.04.022
Popis:	We observed an unconventional parity-violating vortex in single domain Sr 2 RuO 4 single crystals using a transport measurement. The current–voltage characteristics of submicron Sr 2 RuO 4 show that the induced voltage has anomalous components which are even functions of the bias current. The results may suggest that the vortex itself has a helical internal structure characterized by a Hopf invariant (a topological invariant). We also discuss that the hydrodynamics of such a helical vortex causes the parity violation to retain the topological invariant.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1576552a518214eea96ef170b1329929 https://doi.org/10.1016/j.ssc.2009.04.022 Zobrazit plný text záznamu Full Text from ScienceDirect