Laser-induced transformation of Li4C60 and Na4C60 polymers into metallic monomeric fulleride phases

Yao, Mingguang (author)

Pischedda, Vittoria (author)

Le Floch, Sylvie (author)

San Miguel, Alfonso (author)

(creator_code:org_t)

Elsevier BV, 2010
2010
English.
In: Chemical Physics Letters. - : Elsevier BV. - 0009-2614 .- 1873-4448. ; 489:1-3, s. 64-68

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

We demonstrate that laser irradiation on the narrow-gap insulator Li4C60 and Na4C60 polymers results in metallic monomeric structures, having the same Raman features as metallic fcc K3C60 and Rb3C60, with orientationally disordered C3-60 anions stable at ambient conditions. The Raman Ag(2) mode indicates that a single phase was obtained. Additionally, a monomeric A4C60-type phase (A = K, Rb) is observed in Na4C60 after irradiation. The electron–phonon coupling constants derived from Raman modes of C3-60 fullerides is found to be higher than that of C3-60 fullerides, agreeing with the trend found in heavy alkali fullerides. We propose possible structures of the metallic phases.

NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

By the author/editor: Yao, Mingguang; Pischedda, Vitto ...; Wågberg, Thomas; Sundqvist, Berti ...; Le Floch, Sylvie; San Miguel, Alfo ...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

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