http://www.cnr.it/ontology/cnr/individuo/prodotto/ID2815
Infrared study of a La0.7Sr0.3MnO3-delta micrometric transistor channel (Articolo in rivista)
- Type
- Label
- Infrared study of a La0.7Sr0.3MnO3-delta micrometric transistor channel (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.physb.2007.10.375 (literal)
- Alternative label
Ortolani, M; Lee, JS; Schade, U; Pallecchi, I; Gadaleta, A; Marre, D (2008)
Infrared study of a La0.7Sr0.3MnO3-delta micrometric transistor channel
in Physica. B + C (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Ortolani, M; Lee, JS; Schade, U; Pallecchi, I; Gadaleta, A; Marre, D (literal)
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- Scopu (literal)
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Berliner Elektronenspeicherringgesellschaft für Synchrotronstrahlung (BESSY), Albert-Einstein Strasse 15, 12489 Berlin, Germany
CNR-INFM LAMIA and Università di Genova, Via Dodecaneso 33, 16146 Genova, Italy (literal)
- Titolo
- Infrared study of a La0.7Sr0.3MnO3-delta micrometric transistor channel (literal)
- Abstract
- We studied the polaron conductivity in a field-effect transistor (FET) based on the doped oxide La0.7Sr0.3MnO3-delta, where the electric field penetration depth is enhanced due to suppression of metallic conduction by large oxygen deficiency delta, by mid-infrared microspectroscopy (wavelengths from 1.4 to 12 mu m) on a 3 mu m wide active channel. Synchrotron radiation was used to obtain the mid-infrared response at the diffraction limit. We found that bound polarons, although clearly detected, play a minor role in the electric field-induced dc conductivity modulation, which may be then attributed to the accumulation/depletion of free carriers. (c) 2007 Elsevier B.V. All rights reserved. (literal)
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