Journal ArticleDOI
Group Theoretical Analysis of Lattice Vibrations in GaSe Polytypes
S. Jandl,J. L. Brebner +1 more
Reads0
Chats0
TLDR
In this article, a group theoretical analysis of the lattice vibrations of the e and γ polytypes of GaSe for different directions of the wave vector in the Brillouin zone is presented.Abstract:
We present here a group theoretical analysis of the lattice vibrations of the e and γ polytypes of GaSe for different directions of the wave vector in the Brillouin zone. The effect of the interlay...read more
Citations
More filters
Journal ArticleDOI
Lattice vibrations of pure and doped GaSe
K. R. Allakhverdiev,K. R. Allakhverdiev,T. Baykara,Ş. Ellialtıoğlu,F. M. Hashimzade,D. A. Huseinova,K Kawamura,Ali Arslan Kaya,A. M. Kulibekov,S. Onari +9 more
TL;DR: In this paper, the long wavelength lattice vibrations of four modifications of GaSe were described in the framework of modified one-layer linear chain model which also took into consideration the interaction of the selenium (Se) atom with the second nearest neighbor gallium (Ga) atom in the same layer.
Journal ArticleDOI
Elastic constants of the layered compounds Gas, GaSe, InSe, and their pressure dependence I. Experimental part
M. Gatulle,M. Fischer,A. Chevy +2 more
TL;DR: In this paper, a linear chain model that includes intralayer interactions between any atoms is introduced, the principal frequencies and the elastic constants C33 and C44 are calculated, and the evolution of the interlayer interactions with pressure is studied, using previously published experimental results.
Journal ArticleDOI
Raman spectrum of crystalline InSe
S. Jandl,Cosmo Carlone +1 more
TL;DR: In this paper, the first order Raman spectrum at room temperature of a layer type semiconducting compound InSe was reported and the structure was identified as ϵ polytype.
Journal ArticleDOI
Direct and indirect excitonic emission in GaSe
TL;DR: In this article, a detailed analysis of the luminescence intensity has been made as a function of exciting power and temperature, allowing one to ascribe some lines of the intrinsic part of emission spectrum to direct and indirect excitons bound to localized impurity levels in the energy gap of GaSe.
Journal ArticleDOI
Anisotropic phonon dispersion in GaS
TL;DR: In this article, a group theoretical analysis of lattice vibrations in GaS and neutron inelastic scattering measurements of acoustic phonons propagating along the Delta, Sigma and T directions is presented.