Surface magnetic ordering in topological insulators with bulk magnetic dopants
نویسندگان
چکیده
منابع مشابه
Enhancement of surface photocurrents in topological insulators using magnetic superlattices
The gapless surface states of topological insulators (TI) can potentially be used to detect and harvest low-frequency infrared light. Nonetheless, it was shown that significant surface photocurrents due to light with frequency below the bulk gap are rather hard to produce. Here we demonstrate that a periodic magnetic pattern added to the surface dramatically enhances surface photocurrents in TI...
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Topological insulators interacting with magnetic impurities have been reported to host several unconventional effects. These phenomena are described within the framework of gapping Dirac quasiparticles due to broken time-reversal symmetry. However, the overwhelming majority of studies demonstrate the presence of a finite density of states near the Dirac point even once topological insulators be...
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Netanel H. Lindner,1 Aaron Farrell,2, 3 Eran Lustig,1 Felix von Oppen,4 and Gil Refael3 Department of Physics, Technion, Haifa 32000, Israel Department of Physics and the Centre for Physics of Materials, McGill University, Montreal, Quebec, Canada H3A 2T8 Institute of Quantum Information and Matter, Dept. of Physics, Caltech, Pasadena, CA 91125 Dahlem Center for Complex Quantum Systems and Fach...
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The external controllability of the magnetic properties in topological insulators would be important both for fundamental and practical interests. Here we predict the electric-field control of ferromagnetism in a thin film of insulating magnetic topological insulators. The decrease of band inversion by the application of electric fields results in a reduction of magnetic susceptibility, and hen...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2012
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.85.195119