Contrast in terahertz conductivity of phase-change materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00377274" target="_blank" >RIV/68378271:_____/12:00377274 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.ssc.2012.02.018" target="_blank" >http://dx.doi.org/10.1016/j.ssc.2012.02.018</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ssc.2012.02.018" target="_blank" >10.1016/j.ssc.2012.02.018</a>

Result language

angličtina

Original language name

Contrast in terahertz conductivity of phase-change materials

Original language description

Time-domain terahertz spectroscopy was used to study the dielectric and conductive properties of thin films of four phase-change materials: GeTe, GeSb2Te4, GeSbTe2, and AgInSbTe. Both amorphous and crystalline phases were studied, and the spectra were analyzed by a model including a harmonic oscillator and the Drude term. Spectra in the crystalline phase of AgInSbTe are dominated by free-carrier motion with a scattering time of 50 fs. In the Ge-containing compounds, we observed a phonon mode and a conductive contribution of free charge carriers with a much shorter scattering time. The conductivity appears to be linked to the distortions of the crystal unit cell from cubic symmetry.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GC202%2F09%2FJ045" target="_blank" >GC202/09/J045: Electronic transport in phase-change materials</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Solid State Communications

ISSN

0038-1098

e-ISSN

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Volume of the periodical

152

Issue of the periodical within the volume

10

Country of publishing house

GB - UNITED KINGDOM

Number of pages

4

Pages from-to

852-855

UT code for WoS article

000303622200007

EID of the result in the Scopus database

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