首页 | 本学科首页   官方微博 | 高级检索  
     


Parity violation in a single domain of spin-triplet Sr2RuO4 superconductors
Authors:H. Nobukane  K. Inagaki  K. Ichimura  K. Yamaya  S. Takayanagi  I. Kawasaki  K. Tenya  H. Amitsuka  K. Konno  Y. Asano  S. Tanda
Affiliation:1. Department of Applied Physics, Hokkaido University, Sapporo 060-8628, Japan;2. The 21st Century COE Program “Topological Science and Technology” from the MEXT of Japan, Hokkaido University, Sapporo 060-8628, Japan;3. Department of Physics, Hokkaido University, Sapporo 060-0810, Japan;4. Department of Education, Shinshu University, Nagano 380-8544, Japan;1. Department of Applied Physics, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan;2. Center of Education and Research for Topological Science and Technology, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan;3. Graduate School of Education, Nara University of Education, Nara 630-8528, Japan;1. Indiana University Bloomington, Centre for Exploration of Energy and Matter, Bloomington, USA;2. University of Missouri Research Reactor Center, Columbia, USA;3. Indiana University Bloomington, Department of Physics, Bloomington, USA;4. Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, USA;1. School of Mathematics and Physics, Bohai University, JinZhou 121000, China;2. Institute for Theoretical Physics, Utrecht University, Leuvenlaan 4, 3584 CE Utrecht, The Netherlands
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 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.
Keywords:
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号