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Parity violation in a single domain of spin-triplet Sr2RuO4 superconductors

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Title: Parity violation in a single domain of spin-triplet Sr2RuO4 superconductors
Authors: Nobukane, H. Browse this author
Inagaki, K. Browse this author
Ichimura, K. Browse this author
Yamaya, K. Browse this author
Takayanagi, S. Browse this author
Kawasaki, I. Browse this author
Tenya, K. Browse this author
Amitsuka, H. Browse this author
Konno, K. Browse this author
Asano, Y. Browse this author →KAKEN DB
Tanda, S. Browse this author
Keywords: Spin-triplet superconductor
Parity violation
Electric transport
Issue Date: Aug-2009
Publisher: Elsevier Ltd.
Journal Title: Solid State Communications
Volume: 149
Issue: 29-30
Start Page: 1212
End Page: 1215
Publisher DOI: 10.1016/j.ssc.2009.04.022
Abstract: We observed an unconventional parity-violating vortex in single domain Sr2RuO4 single crystals using a transport measurement. The current-voltage characteristics of submicron Sr2RuO4 shows 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.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 延兼 啓純

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