DocumentCode
1241068
Title
Unexpected electronic properties of strained La1.85Sr0.15CuO4 epitaxial films
Author
Ariosa, D. ; Abrecht, M. ; Cloëtta, D. ; Pavuna, D. ; Onellion, M. ; Margaritondo, G.
Author_Institution
Ecole Polytechnique Fodorale de Lausanne, Fac. of Basic Sci., Lausanne, Switzerland
Volume
13
Issue
2
fYear
2003
fDate
6/1/2003 12:00:00 AM
Firstpage
2733
Lastpage
2734
Abstract
Surprising results on electronic properties of strained thin La1.85Sr0.15CuO4 epitaxial films are reported. We report on the very first angle resolved photoemission (ARPES) measurements of the dispersion on in-situ grown, in-plane compressed T-phase LSCO films (showing TC enhancement). The data show clear band crossing, implying that in-plane compressive strain at constant doping results in the suppression of the saddle point, changing the topology of the Fermi surface from hole-like to electron-like.
Keywords
Fermi surface; high-temperature superconductors; lanthanum compounds; photoelectron spectra; strontium compounds; superconducting epitaxial layers; superconducting transition temperature; Fermi surface; LSCO epitaxial film; La1.85Sr0.15CuO4; T-phase; angle resolved photoemission; band crossing; compressive strain; critical temperature; electronic structure; high Tc superconductor; Capacitive sensors; Dispersion; Doping; Photoelectricity; Pulsed laser deposition; Strontium; Substrates; Superconducting films; Superconductivity; Uniaxial strain;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2003.811971
Filename
1212185
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