Journal Article

PreJuSER-57305

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Direct observation of spectroscopic inhomogeneities on La0.7Sr0.3MnO3 thin films by scanning tunneling spectroscopy

di Capua, R. ; Perroni, C. A.FZJ* ; Cataudella, V. ; Miletto Granozio, F. ; Perna, P. ; Salluzzo, M. ; Scotti di Uccio, U. ; Vaglio, R.

2006
IOP Publ. Bristol

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Please use a persistent id in citations: http://hdl.handle.net/2128/23013  doi:10.1088/0953-8984/18/35/007

Abstract: Scanning tunnelling spectroscopy measurements were performed on thin films of La0.7Sr0.3MnO3 both at room temperature and liquid nitrogen temperature. While no inhomogeneities were recorded at liquid nitrogen temperature on any sample, clear evidence of spectroscopic inhomogeneities was evident in tunnelling conductance maps collected at room temperature. The investigated films exhibit a transition from a ferromagnetic-metallic to a paramagnetic-insulating state at around room temperature, so the observed spectroscopic features can be interpreted within a phase separation scenario. A quantitative analysis of the observed spectroscopic features is reported, pointing out the occurrence of phase modulation and its possible correlation with the properties of the system.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Research Program(s):

1. Kondensierte Materie (P54)

Appears in the scientific report 2006
Notes: Nachtrag

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