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Title: A conductive scanning study of La{sub 0.67}Sr{sub 0.33}MnO{sub 3}/Nb:SrTiO{sub 3} hetero-junction

Abstract

Basing on conductive atomic force microscopy, we presented a direct conductance mapping for the interface of the La{sub 0.67}Sr{sub 0.33}MnO{sub 3}/Nb:SrTiO{sub 3} hetero-junction. The most remarkable observation is the presence of an interfacial layer in Nb:SrTiO{sub 3} adjacent to the manganite film. Within this layer, the AFM tip/Nb:SrTiO{sub 3} contact shows a current-voltage dependence that strongly deviates from Shockley equation, unlike a Schottky diode. Spatial extension of this layer is explored and possible transport mechanism in or outside this interfacial layer is discussed. The present work gives a direct intuitional image on the interface of manganite junction. The principle proven here can be extended to other complex oxide interfaces.

Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
22489396
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 108; Journal Issue: 5; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMIC FORCE MICROSCOPY; ELECTRIC POTENTIAL; FILMS; IMAGES; INTERFACES; LAYERS; MAPPING; SCHOTTKY BARRIER DIODES; STRONTIUM TITANATES

Citation Formats

Lu, H. X., Zhang, J., Zhang, H. R., Li, Y., Chen, Y. S., E-mail: yschen@iphy.ac.cn, Shen, B. G., and Sun, J. R., E-mail: jrsun@iphy.ac.cn. A conductive scanning study of La{sub 0.67}Sr{sub 0.33}MnO{sub 3}/Nb:SrTiO{sub 3} hetero-junction. United States: N. p., 2016. Web. doi:10.1063/1.4941419.
Lu, H. X., Zhang, J., Zhang, H. R., Li, Y., Chen, Y. S., E-mail: yschen@iphy.ac.cn, Shen, B. G., & Sun, J. R., E-mail: jrsun@iphy.ac.cn. A conductive scanning study of La{sub 0.67}Sr{sub 0.33}MnO{sub 3}/Nb:SrTiO{sub 3} hetero-junction. United States. https://doi.org/10.1063/1.4941419
Lu, H. X., Zhang, J., Zhang, H. R., Li, Y., Chen, Y. S., E-mail: yschen@iphy.ac.cn, Shen, B. G., and Sun, J. R., E-mail: jrsun@iphy.ac.cn. 2016. "A conductive scanning study of La{sub 0.67}Sr{sub 0.33}MnO{sub 3}/Nb:SrTiO{sub 3} hetero-junction". United States. https://doi.org/10.1063/1.4941419.
@article{osti_22489396,
title = {A conductive scanning study of La{sub 0.67}Sr{sub 0.33}MnO{sub 3}/Nb:SrTiO{sub 3} hetero-junction},
author = {Lu, H. X. and Zhang, J. and Zhang, H. R. and Li, Y. and Chen, Y. S., E-mail: yschen@iphy.ac.cn and Shen, B. G. and Sun, J. R., E-mail: jrsun@iphy.ac.cn},
abstractNote = {Basing on conductive atomic force microscopy, we presented a direct conductance mapping for the interface of the La{sub 0.67}Sr{sub 0.33}MnO{sub 3}/Nb:SrTiO{sub 3} hetero-junction. The most remarkable observation is the presence of an interfacial layer in Nb:SrTiO{sub 3} adjacent to the manganite film. Within this layer, the AFM tip/Nb:SrTiO{sub 3} contact shows a current-voltage dependence that strongly deviates from Shockley equation, unlike a Schottky diode. Spatial extension of this layer is explored and possible transport mechanism in or outside this interfacial layer is discussed. The present work gives a direct intuitional image on the interface of manganite junction. The principle proven here can be extended to other complex oxide interfaces.},
doi = {10.1063/1.4941419},
url = {https://www.osti.gov/biblio/22489396}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 5,
volume = 108,
place = {United States},
year = {Mon Feb 01 00:00:00 EST 2016},
month = {Mon Feb 01 00:00:00 EST 2016}
}