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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2002, Volume 75, Issue 8, Pages 479–482 (Mi jetpl3089)  
This article is cited in 17 scientific papers (total in 17 papers)

CONDENSED MATTER

Raman spectra of MgB$\mathbf{_2}$ at high pressure and topological electronic transition

K. P. Meletova, M. P. Kulakova, N. N. Kolesnikova, J. Arvanitidisb, G. A. Kourouklisb

a Institute of Solid State Physics, Russian Academy of Sciences
b Physics Division, School of Technology, Aristotle University of Thessaloniki
Full-text PDF (216 kB) Citations (17)
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Abstract: Raman spectra of the MgB$_2$ ceramic samples were measured as a function of pressure up to 32 GPa at room temperature. The spectrum at normal conditions contains a very broad peak at $\sim590 \,$cm$^{-1}$ related to the $E_{2g}$ phonon mode. The frequency of this mode exhibits a strong linear dependence in the pressure region from 5 to 18 GPa, whereas beyond this region the slope of the pressure-induced frequency shift is reduced by about a factor of two. The pressure dependence of the phonon mode up to $\sim5 \,$GPa exhibits a change in the slope as well as a «hysteresis» effect in the frequency vs. pressure behavior. These singularities in the $E_{2g}$ mode behavior under pressure support the suggestion that MgB$_2$ may undergo a pressure-induced topological electronic transition.
Received: 18.03.2002
English version:
Journal of Experimental and Theoretical Physics Letters, 2002, Volume 75, Issue 8, Pages 406–409
DOI: https://doi.org/10.1134/1.1490010
Bibliographic databases:
Document Type: Article
PACS: 74.62.Fj, 74.25.Kc, 74.25.Gz
Language: English
Citation: K. P. Meletov, M. P. Kulakov, N. N. Kolesnikov, J. Arvanitidis, G. A. Kourouklis, “Raman spectra of MgB$\mathbf{_2}$ at high pressure and topological electronic transition”, Pis'ma v Zh. Èksper. Teoret. Fiz., 75:8 (2002), 479–482; JETP Letters, 75:8 (2002), 406–409
Citation in format AMSBIB
\Bibitem{MelKulKol02}
\by K.~P.~Meletov, M.~P.~Kulakov, N.~N.~Kolesnikov, J.~Arvanitidis, G.~A.~Kourouklis
\paper Raman spectra of MgB$\mathbf{_2}$ at high pressure and topological electronic transition
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2002
\vol 75
\issue 8
\pages 479--482
\mathnet{http://mi.mathnet.ru/jetpl3089}
\transl
\jour JETP Letters
\yr 2002
\vol 75
\issue 8
\pages 406--409
\crossref{https://doi.org/10.1134/1.1490010}
\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-0013116212}
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  • https://www.mathnet.ru/eng/jetpl/v75/i8/p479
    • This publication is cited in the following 17 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    		Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
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