Unidirectional Magneto-Resistance in Modulation-Doped Magnetic Topological Insulators
نویسندگان
چکیده
منابع مشابه
Manipulating surface-related ferromagnetism in modulation-doped topological insulators.
A new class of devices based on topological insulators (TI) can be achieved by the direct engineering of the time-reversal-symmetry (TRS) protected surface states. In the meantime, a variety of interesting phenomena are also expected when additional ferromagnetism is introduced to the original topological order. In this Letter, we report the magnetic responses from the magnetically modulation-d...
متن کاملElectrically Tunable Magnetism in Magnetic Topological Insulators.
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...
متن کاملLogarithmic singularities and quantum oscillations in magnetically doped topological insulators
D. Nandi,1 Inti Sodemann,2, 3 K. Shain,1 G.H. Lee,1, 4 K. Huang,1 Cui-Zu Chang,5, 6 Yunbo Ou,5 S.P. Lee,7, 8 J. Ward,1 J.S. Moodera,5 P. Kim,1 and A. Yacoby1 Department of Physics, Harvard University, Cambridge, MA 02138, USA Max-Planck Institute for the Physics of Complex Systems, D-01187 Dresden, Germany Department of Physics, Massachussetts Institute of Technology, Cambridge, MA 02139, USA D...
متن کاملElectric-magnetic duality and topological insulators.
We work out the action of the SL(2,Z) electric-magnetic duality group for an insulator with a nontrivial permittivity, permeability, and theta angle. This theory has recently been proposed to be the correct low-energy effective action for topological insulators. As applications, we give manifestly SL(2,Z) covariant expressions for the Faraday rotation at orthogonal incidence at the interface of...
متن کاملDetermination of the quantized topological magneto-electric effect in topological insulators from Rayleigh scattering
Topological insulators (TIs) exhibit many exotic properties. In particular, a topological magneto-electric (TME) effect, quantized in units of the fine structure constant, exists in TIs. Here, we theoretically study the scattering properties of electromagnetic waves by TI circular cylinders particularly in the Rayleigh scattering limit. Compared with ordinary dielectric cylinders, the scatterin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nano Letters
سال: 2019
ISSN: 1530-6984,1530-6992
DOI: 10.1021/acs.nanolett.8b03702