Hauptseite > Publikationsdatenbank > Self-neutralization via electroreduction in photoemission from SrTiO3 single crystals > print

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024 7 _ |2 DOI
|a 10.1007/s00339-009-5240-0
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024 7 _ |2 ISSN
|a 0947-8396
037 _ _ |a PreJuSER-6489
041 _ _ |a eng
082 _ _ |a 530
084 _ _ |2 WoS
|a Materials Science, Multidisciplinary
084 _ _ |2 WoS
|a Physics, Applied
100 1 _ |a Szade, J.
|b 0
|0 P:(DE-HGF)0
245 _ _ |a Self-neutralization via electroreduction in photoemission from SrTiO3 single crystals
260 _ _ |c 2009
|a Berlin
|b Springer
300 _ _ |a 449 - 454
336 7 _ |a Journal Article
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336 7 _ |a article
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440 _ 0 |a Applied Physics A
|x 0947-8396
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|v 97
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a The effect of bulk mediated neutralization in photoemission from insulating monocrystalline SrTiO3 was studied. Long-term measurements of the photoemission line shift and emission current allowed us to relate the observed systematic reduction of the surface charging to increasing conductivity of the samples. The bulk resistance of the SrTiO3 samples was found to scale with their thickness. We present a model of the observed behaviour based on well-conducting filaments connecting the surface with the grounded sample holder, similar to the hypothesis explaining resistive switching in single crystals and thin films of SrTiO3. In our model the changes of the local oxygen stoichiometry are driven by surface potential and consequently electric field and chemical gradients, which cause electroreduction and electromigration along extended defects in the crystals.
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700 1 _ |a Psiuk, B.
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700 1 _ |a Pilch, M.
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700 1 _ |a Waser, R.
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700 1 _ |a Szot, K.
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773 _ _ |0 PERI:(DE-600)1398311-8
|a 10.1007/s00339-009-5240-0
|g Vol. 97, p. 449 - 454
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|t Applied physics / A
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|x 0947-8396
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856 7 _ |u http://dx.doi.org/10.1007/s00339-009-5240-0
909 C O |o oai:juser.fz-juelich.de:6489
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914 1 _ |y 2009
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