Polarized Raman spectroscopy of LiBC: Possible evidence for lower crystal symmetry

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F03%3A04092418" target="_blank" >RIV/68407700:21340/03:04092418 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Polarized Raman spectroscopy of LiBC: Possible evidence for lower crystal symmetry

Original language description

The paper presents a polarized Raman scattering study of a few-micron-size crystallite of LiBC with natural faces. The experiment on an as grown sample revealed four lattice modes with frequencies at 1176, 830, 546, and 170 cm-1, respectively. The numberof observed Raman lines and their selection rules are incompatible with the assumed D6h symmetry. The modes at 1176 and 170 cm-1 correspond to the expected Raman active modes. In contrast to the superconducting compound MgB2, the B-C bond stretching mode (at 1176 cm-1) has rather small damping. The two "forbidden" modes (at 830 and 546 cm-1) disappeared after a subsequent thermal treatment.

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

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

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

Name of the periodical

Physical Review B

ISSN

0163-1829

e-ISSN

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Volume of the periodical

67

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

4

Pages from-to

"20504-1"-"20504-4"

UT code for WoS article

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EID of the result in the Scopus database

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