San Jose State University SJSU ScholarWorks Faculty Research, Scholarly, and Creative Activity 6-6-2016 Transport of Dirac electrons in a random magnetic field in topological heterostructures Hilary M. Hurst University of Maryland,
[email protected] Dimitry K. Efimkin University of Maryland Victor Galitski University of Maryland Follow this and additional works at: https://scholarworks.sjsu.edu/faculty_rsca Part of the Condensed Matter Physics Commons Recommended Citation Hilary M. Hurst, Dimitry K. Efimkin, and Victor Galitski. "Transport of Dirac electrons in a random magnetic field in opologicalt heterostructures" Physical Review B (2016). https://doi.org/10.1103/ physrevb.93.245111 This Article is brought to you for free and open access by SJSU ScholarWorks. It has been accepted for inclusion in Faculty Research, Scholarly, and Creative Activity by an authorized administrator of SJSU ScholarWorks. For more information, please contact
[email protected]. PHYSICAL REVIEW B 93, 245111 (2016) Transport of Dirac electrons in a random magnetic field in topological heterostructures Hilary M. Hurst,1 Dmitry K. Efimkin,1 and Victor Galitski1,2 1Joint Quantum Institute and Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA 2School of Physics, Monash University, Melbourne, Victoria 3800, Australia (Received 8 March 2016; published 6 June 2016) We consider the proximity effect between Dirac states at the surface of a topological insulator and a ferromagnet with easy plane anisotropy, which is described by the XY model and undergoes a Berezinskii-Kosterlitz-Thouless (BKT) phase transition. The surface states of the topological insulator interacting with classical magnetic fluctuations of the ferromagnet can be mapped onto the problem of Dirac fermions in a random magnetic field.