2024-03-29T16:00:47Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/389052022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Parity violation in a single domain of spin-triplet Sr2RuO4 superconductorsNobukane, H.Inagaki, K.Ichimura, K.Yamaya, K.Takayanagi, S.Kawasaki, I.Tenya, K.Amitsuka, H.Konno, K.Asano, Y.Tanda, S.Spin-triplet superconductorParity violationElectric transport428We 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.Elsevier Ltd.Journal Articleapplication/pdfhttp://hdl.handle.net/2115/38905https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/38905/1/149-29-30_p1212-1215.pdf0038-1098Solid State Communications14929-30121212152009-08enginfo:doi/10.1016/j.ssc.2009.04.022author