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25 April 2024

» arxiv » cond-mat/0606238

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Current spinon-holon description of the one-dimensional charge-transfer insulator SrCuO2: Angle-resolved photoemission measurements
A. Koitzsch ; S. V. Borisenko ; J. Geck ; V. B. Zabolotnyy ; M. Knupfer ; J. Fink ; P. Ribeiro ; B. Buechner ; R. Follath ;
Date:	9 Jun 2006
Journal:	Phys. Rev. B 73, 201101(R) (2006)
Subject:	Superconductivity
Abstract:	We have investigated the low-energy electronic structure of the strongly correlated one-dimensional copper oxide chain compound SrCuO2 by angle resolved photoemission as a function of excitation energy. In addition to the prominent spinon-holon continuum we observe a peaklike and dispersive feature at the zone boundary. By fine-tuning the experimental parameters we are able to monitor the full holon branch and to directly measure the electronic hopping parameter with unprecedented accuracy.
Source:	arXiv, cond-mat/0606238
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