Phonon squeezed state in high-Tc superconductors

Takayuki Sota, K. Suzuki

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    We study the phonon states in high Tc superconducting materials within a weak-coupling polaron model. It is confirmed that the squeezed state of phonons gives lower ground state energy of the whole system than the two-phonon coherent state and the displaced state proposed previously. We also examine a condition that the squeezed state occurs. It follows that the squeezed state can exist when the interband electron transfer is allowed in many-band system.

    Original languageEnglish
    Pages (from-to)1083-1084
    Number of pages2
    JournalPhysica B: Condensed Matter
    Volume165-66
    Issue number2
    Publication statusPublished - 1990 Aug

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    Phonons
    Ground state
    Superconducting materials
    Electrons
    electron transfer
    phonons
    ground state
    energy

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics

    Cite this

    Phonon squeezed state in high-Tc superconductors. / Sota, Takayuki; Suzuki, K.

    In: Physica B: Condensed Matter, Vol. 165-66, No. 2, 08.1990, p. 1083-1084.

    Research output: Contribution to journalArticle

    Sota, T & Suzuki, K 1990, 'Phonon squeezed state in high-Tc superconductors', Physica B: Condensed Matter, vol. 165-66, no. 2, pp. 1083-1084.
    Sota, Takayuki ; Suzuki, K. / Phonon squeezed state in high-Tc superconductors. In: Physica B: Condensed Matter. 1990 ; Vol. 165-66, No. 2. pp. 1083-1084.
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