Authors: Nikolić, Pantelija
Todorović, Dragan
Vujatović, Stevan
Đurić, S.
Mihailović, P.
Blagojević, Vladimir
Radulović, Katarina
Bojičić, A.
Vasiljević-Radović, Dana
Elazar, Jovan
Urošević, Dragan 
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: Anisotropy in thermal and electronic properties of single crystal GeSe 2 obtained by the photoacoustic method
Journal: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume: 37
Issue: 9 A
First page: 4925
Last page: 4930
Issue Date: 1-Jan-1998
Rank: M21
ISSN: 0021-4922
DOI: 10.1143/JJAP.37.4925
Anisotropy in the thermal and electronic properties for two directions of a thermal wave propagation in GeSe 2 single crystal was investigated using the photoacoustic frequency transmission technique. First, the electric field of an incident polarized light beam was adjusted to be perpendicular to the "c" axis (E 1 ⊥ c), and then parallel to it (E 1 //c). It is shown that there is an obvious difference in the PA amplitude and phase spectra of the same sample, for cases when E 1 //c and E 1 ⊥ c axis. The results for thermal diffusivity D T obtained by fitting procedure for these two orientations of the electric field with regard to the "c" axis, are calculated: D T // = 1.1 × 10 -2 and D T ⊥ = 1.7 × 10 -3 cm 2 /s, e.g. their ratio is 6.6. The electronic transport parameters are also given: the carrier ambipolar diffusion coefficient D// = 1.5 cm 2 /s and D⊥ = 2.5 cm 2 /s.
Keywords: Anisotropy | Electronic properties | GeSe 2 | Photoacoustic method | Single crystal | Thermal diffusivity
Publisher: Japan Society of Applied Physics

Show full item record


checked on Jun 15, 2024

Page view(s)

checked on May 9, 2024

Google ScholarTM




Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.