Z2Invariance of Germanene onMoS2from First Principles
نویسندگان
چکیده
منابع مشابه
A first-principles study of gas adsorption on germanene.
The adsorption of common gas molecules (N2, CO, CO2, H2O, NH3, NO, NO2, and O2) on germanene is studied with density functional theory. The results show that N2, CO, CO2, and H2O are physisorbed on germanene via van der Waals interactions, while NH3, NO, NO2, and O2 are chemisorbed on germanene via strong covalent (Ge-N or Ge-O) bonds. The chemisorption of gas molecules on germanene opens a ban...
متن کاملUnusual structural and electronic properties of porous silicene and germanene: insights from first-principles calculations
Using first-principles calculations, we investigate the geometric structures and electronic properties of porous silicene and germanene nanosheets, which are the Si and Ge analogues of α-graphyne (referred to as silicyne and germanyne). It is found that the elemental silicyne and germanyne sheets are energetically unfavourable. However, after the C-substitution, the hybrid graphyne-like sheets ...
متن کاملFirst - Principles Study Of
Rights: © 1992 American Physical Society (APS). This is the accepted version of the following article: Alatalo, M. & Puska, M. J. & Nieminen, Risto M. 1992. First-principles study of He in Si. Physical Review B. Volume 46, Issue 19. 12806-12809. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.46.12806, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/Phy...
متن کاملFirst Principles of Instruction
For the past several years the author has been reviewing instructional design theories in an attempt to identify prescriptive principles that are common to the various theories. This paper is a preliminary report of the principles that have been identified by this search. Five first principles are elaborated: (a) Learning is promoted when learners are engaged in solving real-world problems. (b)...
متن کاملCoulomb excitations of monolayer germanene
The feature-rich electronic excitations of monolayer germanene lie in the significant spin-orbit coupling and the buckled structure. The collective and single-particle excitations are diversified by the magnitude and direction of transferred momentum, the Fermi energy and the gate voltage. There are four kinds of plasmon modes, according to the unique frequency- and momentum-dependent phase dia...
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: Physical Review Letters
سال: 2016
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.116.256805