SPECTRUM OF ELEMENTARY EXCITATIONS AND INTERPLANAR TUNNELING IN LAYERED CUPRATES

Authors
EREMIN MV SOLOVYANOV SG VARLAMOV SV BRINKMAN D MALI M MARKENDORF R ROOS J
Citation
Mv. Eremin et al., SPECTRUM OF ELEMENTARY EXCITATIONS AND INTERPLANAR TUNNELING IN LAYERED CUPRATES, JETP letters, 60(2), 1994, pp. 125-129
Citations number
8
Categorie Soggetti
Physics
Journal title
JETP letters → ACNP
ISSN journal
00213640
Volume
60
Issue
2
Year of publication
1994
Pages
125 - 129
Database
ISI
SICI code
0021-3640(1994)60:2<125:SOEEAI>2.0.ZU;2-S
Abstract
Data on photoelectron emission obtained recently with a resolution bet ter than 10 meV can be described well by the model of a singlet-correl ated motion of oxygen holes in CuO2 planes. This model predicts the ex istence of a peak in the density of states near the bottom of the band . Experimental points corresponding to an energy of 120 meV near the c enter of the Brillouin zone in YBa2Cu4O8 are explained on the basis of an interplanar tunneling of singlet-correlated oxygen holes.