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Title: | Surface of underdoped YBa2Cu3O7- δ as revealed by STM/STS |
Authors: | Urbanik, G.; Hänke, T.; Hess, C.; Büchner, B.; Ciszewski, A.; Hinkov, V.; Lin, C.T.; Keimer, B. |
Publishers version: | https://doi.org/10.1140/epjb/e2009-00198-y |
URI: | https://doi.org/10.34657/1687 https://oa.tib.eu/renate/handle/123456789/4348 |
Issue Date: | 2009 |
Published in: | The European Physical Journal B, Volume 69, Page 483-489 |
Publisher: | London : BioMed Central |
Abstract: | We performed scanning tunneling microscopy and spectroscopy on untwinned crystals of underdoped YBa2Cu3O7- δ at δ = 0.4. A comprehensive statistical analysis of our topographic data indicates a doping dependent cleaving behavior of this material. We find in particular that at δ = 0.4 the material primarily cleaves in multiples of one unit cell along the c-axis with a high corrugation of the topmost layer. Our data suggest that the low temperature cleaving mainly results in a disruption of the CuO chain layers involving a redistribution of the layer atoms onto the two cleaving planes. In a few instances, fractional step heights (in terms of the c-axis lattice constant) are observed as well. Scanning tunneling spectroscopy reveals that such fractional steps connect surfaces which differ significantly in their tunneling conductance. |
Keywords: | Cell membranes; Copper oxides; Scanning; Scanning tunneling microscopy; Spectroscopy |
Type: | report; Text |
Publishing status: | publishedVersion |
DDC: | 530 |
License: | CC BY 3.0 Unported |
Link to license: | https://creativecommons.org/licenses/by/3.0/ |
Appears in Collections: | Physik |
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Urbanik, G., T. Hänke, C. Hess, B. Büchner, A. Ciszewski, V. Hinkov, C.T. Lin and B. Keimer, 2009. Surface of underdoped YBa2Cu3O7- δ as revealed by STM/STS. London : BioMed Central
Urbanik, G., Hänke, T., Hess, C., Büchner, B., Ciszewski, A., Hinkov, V., Lin, C. T. and Keimer, B. (2009) Surface of underdoped YBa2Cu3O7- δ as revealed by STM/STS. London : BioMed Central. doi: https://doi.org/10.1140/epjb/e2009-00198-y.
Urbanik G, Hänke T, Hess C, Büchner B, Ciszewski A, Hinkov V, Lin C T, Keimer B. Surface of underdoped YBa2Cu3O7- δ as revealed by STM/STS. London : BioMed Central; 2009.
Urbanik, G., Hänke, T., Hess, C., Büchner, B., Ciszewski, A., Hinkov, V., Lin, C. T., & Keimer, B. (2009). Surface of underdoped YBa2Cu3O7- δ as revealed by STM/STS (Version publishedVersion). London : BioMed Central. https://doi.org/https://doi.org/10.1140/epjb/e2009-00198-y
Urbanik G, Hänke T, Hess C, Büchner B, Ciszewski A, Hinkov V, Lin C T, Keimer B. Surface of underdoped YBa2Cu3O7- δ as revealed by STM/STS. London : BioMed Central; 2009. doi:https://doi.org/10.1140/epjb/e2009-00198-y
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