Unbiased access to exchange splitting of magnetic bands using the maximum entropy method

W. von der Linden, M. Donath, V. Dose

Research output: Contribution to journalArticle

Abstract

The experimental information about magnetic bands and their temperature dependence is distorted by Fermi distribution and apparatus function. The recovery of the spectral density constitutes an ill-posed inversion problem. We have invoked the maximum entropy regularization to deconvolute spin-resolved inverse photoemission data of Ni(110). The effective energy resolution is hereby improved by a factor of 5 and structures below EF, which are generally lost in inverse photoemission, are recovered. The temperature-dependent data for Ni reveal clearly a pair of spin-split bands. The splitting vanishes on approaching the Curie temperature.
Original languageEnglish
Pages (from-to)899
Number of pages1
JournalPhysical Review Letters
Volume71
Issue number6
DOIs
Publication statusPublished - 1993

Fingerprint Dive into the research topics of 'Unbiased access to exchange splitting of magnetic bands using the maximum entropy method'. Together they form a unique fingerprint.

Cite this