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- Chinese Academy of SciencesCN492 papers
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24 papers · 1 filter
Raman spectroscopy at the edges of multilayer graphene
Q. -Q. Li, X. Zhang, W. -P. Han +4
Edges naturally exist in a single-layer graphene sample. Similarly, individual graphene layers in a multilayer graphene sample contribute their own edges. We study the Raman spectr…
Interlayer Breathing and Shear Modes in Few-Layer Black Phosphorus
Jin-Wu Jiang, Bing-Shen Wang, Harold S. Park
The interlayer breathing and shear modes in few-layer black phosphorus are investigated for their symmetry and lattice dynamical properties. The symmetry groups for the even-layer…
Supercoupling between heavy-hole and light-hole states in self-assembled quantum dots
Jun-Wei Luo, Gabriel Bester, Alex Zunger
Spintronics, quantum computing and quantum communication science utilizing cubic semiconductors rely largely on the properties of the hole states, composed of light and heavy hole…
Split Dirac cones in HgTe/CdTe quantum wells due to symmetry-enforced level anticrossing at interfaces
S. A. Tarasenko, M. V. Durnev, M. O. Nestoklon +3
We describe the fine structure of Dirac states in HgTe/CdHgTe quantum wells of critical and close-to-critical thickness and demonstrate the formation of an anticrossing gap between…
Landau levels and magneto-transport property of monolayer phosphorene
X. Y. Zhou, R. Zhang, J. P. Sun +7
We investigate theoretically the Landau levels (LLs) and magneto-transport properties of phosphorene under a perpendicular magnetic field within the framework of the effective \tex…
Robustness of Quantum Spin Hall Effect in an External Magnetic Field
Song-Bo Zhang, Yan-Yang Zhang, Shun-Qing Shen
The edge states in the quantum spin Hall effect are expected to be protected by time reversal symmetry. The experimental observation of the quantized conductance was reported in th…