scholarly journals Theory of invariants-based formulation of k·p Hamiltonians with application to strained zinc-blende crystals

2017 ◽  
Vol 529 (6) ◽  
pp. 1600218
Author(s):  
Johannes Wanner ◽  
Ulrich Eckern ◽  
Karl-Heinz Höck
Keyword(s):  
Zinc Blende ◽  
Theory Of Invariants

Manifestation of defects in phonon spectra of binary zinc-blende compounds

2004 ◽  
Vol 27 (1-3) ◽  
pp. 321-324 ◽  
Author(s):  
J. Polit ◽  
E. M. Sheregii ◽  
J. Cebulski ◽  
M. Pociask ◽  
A. Kisiel ◽  
...  
Keyword(s):  
Zinc Blende ◽  
Phonon Spectra

EXCITON INSULATOR STATES IN MATERIALS WITH ‘MEXICAN HAT’ BAND STRUCTURE DISPERSION AND IN GRAPHENE

2015 ◽  
Vol 11 (1) ◽  
pp. 2927-2949
Author(s):  
Lyubov E. Lokot
Keyword(s):  
Band Structure ◽  
Three Dimensional ◽  
Dimensional Sphere ◽  
Electron Hole ◽  
Dinger Equation ◽  
Fermi Sphere ◽  
Zinc Blende ◽  
Bulk Gan ◽  
Structure Dispersion ◽  
Excitonic States

In the paper a theoretical study the both the quantized energies of excitonic states and their wave functions in grapheneand in materials with "Mexican hat" band structure dispersion as well as in zinc-blende GaN is presented. An integral twodimensionalSchrödinger equation of the electron-hole pairing for a particles with electron-hole symmetry of reflection isexactly solved. The solutions of Schrödinger equation in momentum space in studied materials by projection the twodimensionalspace of momentum on the three-dimensional sphere are found exactly. We analytically solve an integral twodimensionalSchrödinger equation of the electron-hole pairing for particles with electron-hole symmetry of reflection. Instudied materials the electron-hole pairing leads to the exciton insulator states. Quantized spectral series and lightabsorption rates of the excitonic states which distribute in valence cone are found exactly. If the electron and hole areseparated, their energy is higher than if they are paired. The particle-hole symmetry of Dirac equation of layered materialsallows perfect pairing between electron Fermi sphere and hole Fermi sphere in the valence cone and conduction cone andhence driving the Cooper instability. The solutions of Coulomb problem of electron-hole pair does not depend from a widthof band gap of graphene. It means the absolute compliance with the cyclic geometry of diagrams at justification of theequation of motion for a microscopic dipole of graphene where >1 s r . The absorption spectrums for the zinc-blendeGaN/(Al,Ga)N quantum well as well as for the zinc-blende bulk GaN are presented. Comparison with availableexperimental data shows good agreement.

On the phase transformation zinc blende to wurtzite

1986 ◽  
Vol 109 (1) ◽  
pp. 117-129 ◽  
Author(s):  
Friedrich Frey ◽  
Heinz Jagodzinski ◽  
Georg Steger
Keyword(s):  
Phase Transformation ◽  
Zinc Blende

scholarly journals Correction to Induction of Wurtzite to Zinc-Blende Phase Transformation in ZnSe Nanorods During Cu(I) Cation Exchange

2021 ◽  
Author(s):  
Fei Huang ◽  
Jiajia Ning ◽  
Zonghui Duan ◽  
Aleksandr A. Sergeev ◽  
Arsenii Portniagin ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Cation Exchange ◽  
Zinc Blende
Sign in / Sign up

Export Citation Format

Share Document