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36 papers · 2 filters
Shot noise of spin current and spin transfer torque
Yunjin Yu, Hongxin Zhan, Langhui Wan +4
We report the theoretical investigation of noise spectrum of spin current and spin transfer torque for non-colinear spin polarized transport in a spin-valve device which consists o…
Spontaneous Symmetry Breaking and Dynamic Phase Transition in Monolayer Silicene
Lan Chen, Hui Li, Baojie Feng +5
The (r3xr3)R30° honeycomb of silicene monolayer on Ag(111) was found to undergo a phase transition to two types of mirror-symmetric boundary-separated rhombic phases at temperature…
Robust topological insulator surface conduction under strong surface disorder
Quansheng Wu, Liang Du, Vincent E. Sacksteder
Topological insulators are characterized by specially protected conduction on their outer boundaries. We show that the protected edge conduction exhibited by 2-D topological insula…
Graphyne- and Graphdiyne-based Nanoribbons: Density Functional Theory Calculations of Electronic Structures
Lida Pan, Lizhi Zhang, Boqun Song +2
We report on the configurations and electronic properties of graphyne and graphdiyne nanoribbons with armchair and zigzag edges investigated with first principles calculations. Our…
Landau level spectroscopy of relativistic fermions with low Fermi velocity in Bi2Te3 three-dimensional topological insulator
A. Wolos, S. Szyszko, A. Drabinska +5
X-band microwave spectroscopy is applied to study the cyclotron resonance in Bi2Te3 exposed to ambient conditions. With its help, intraband transitions between Landau levels of rel…
Topological Invariants of Metals and Related Physical Effects
Jianhui Zhou, Hua Jiang, Qian Niu +1
The total reciprocal space magnetic flux threading through a closed Fermi surface is a topological invariant for a three-dimensional metal. For a Weyl metal, the invariant is non-z…