Lee, CM, Lee RCH, Ruan WY, Chou MY, Vyas A.
2013.
Magnetic-field dependence of low-lying spectra in bilayer graphene-based magnetic dots and rings, Mar. Solid State Communications. 156:49-53.
AbstractThe low-lying energy spectra of bilayer graphene in a perpendicular magnetic field B(r)(z) over cap were obtained by numerical diagonalization of the Hamiltonian. We assumed that B(r) takes on the shape of a circular dot or a ring. Under such a nonuniform field, the lowest-energy Landau levels, with N- = 0,1, remain invariant with a zero eigenvalue. For other Landau levels, complicated level-splitting and level-crossings take place when the effective radius of the dot or ring increases. (C) 2012 Elsevier Ltd. All rights reserved.
Chou, MY.
1997.
Modern electronic-structure calculations for real materials, Aug. Chinese Journal of Physics. 35:365-372., Number 4
AbstractThis paper gives a brief overview of the capability of modern electron-structure calculations, the widely used density-functional theory, and the challenge to search for the exact nonlocal exchange-correlation functional. The study of the thermal properties of silicon is used as an example to illustrate the accuracy accomplished by the state-of-the-art first-principles calculations. A recent attempt to extract quantities of central importance in density function theory via computational many-body techniques is also discussed.
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