Article scientifique

Anglais

On the Fermi Surface of YBa₂Cu₃O_7-δ

Contributeurs/tricesPeter, Martin; Manuel, Alfred-Adrien; Hoffmann, Ludger; Sadowski, Wojciech

Publié dansEurophysics Letters, vol. 18, no. 4, p. 313-317

Date de publication1992

Résumé

We show that the signature of a Fermi surface sheet of YBa2Cu3O7-δ may be obtained unambiguously from twinned crystals. Comparison of electron-positron momentum density from YBa2Cu3O7-δ measured both in insulating and (superconducting) twinned phases leads to a decisive further proof of the existence of the Fermi surface in the metallic YBa2Cu3O7-δ. In addition, measurements on untwinned YBa2Cu3O7-δ single crystals reveal also a "ridge" Fermi surface sheet attributed by band structure calculations to CuO chains.

Structure d'affiliation

Faculté des sciences / Section de physique / Département de physique de la matière quantique

Citation (format ISO)

PETER, Martin et al. On the Fermi Surface of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub>. In: Europhysics Letters, 1992, vol. 18, n° 4, p. 313–317. doi: 10.1209/0295-5075/18/4/006

Article (Published version)

accessLevelRestricted

Identifiants

PID : unige:117477
DOI : 10.1209/0295-5075/18/4/006

URL commercialhttp://stacks.iop.org/0295-5075/18/i=4/a=006?key=crossref.10d584ad0242517abff2feda8d28f3ce

ISSN du journal0295-5075

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