The 'quasiparticle' peak in the angular resolved spectrum of the superconducting underdoped Bi2Sr2CaCu2O 8

A. V. Rozhkov

Research output: Contribution to journalArticlepeer-review

Abstract

We study the reconfiguration of the angular resolved photoemission spectrum near M point which occurs in Bi2Sr2CaCu 2O8 upon cooling below the superconducting transition temperature. Restricting our attention to the case of underdoped samples we offer a phenomenological mechanism-independent explanation for this effect. It is demonstrated that under certain circumstances the emergence of a peak can be linked to the normal state pseudogap. All of the basic experimental observations, including weak peak dispersion, "dip-and-hump" shape of the superconducting state spectrum and appearance of the peak at the temperatures somewhat higher than the critical temperature, are naturally explained.

Original languageEnglish
Pages (from-to)103-110
Number of pages8
JournalEuropean Physical Journal B
Volume35
Issue number1
DOIs
Publication statusPublished - Sep 2003
Externally publishedYes

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