Scientific article

English

On the Fermi Surface of YBa₂Cu₃O_7-δ

ContributorsPeter, Martin; Manuel, Alfred-Adrien; Hoffmann, Ludger; Sadowski, Wojciech

Published inEurophysics Letters, vol. 18, no. 4, p. 313-317

Publication date1992

Abstract

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.

Affiliation entities

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

Citation (ISO format)

PETER, Martin et al. On the Fermi Surface of YBa₂Cu₃O_7-δ. In: Europhysics Letters, 1992, vol. 18, n° 4, p. 313–317. doi: 10.1209/0295-5075/18/4/006

Article (Published version)

Identifiers

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

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

Journal ISSN0295-5075

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