Journal Article

FZJ-2017-00471

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Pulsed laser deposition of SrRuO 3 thin-films: The role of the pulse repetition rate

Schraknepper, H. ; Bäumer, C.FZJ* ; Gunkel, F.FZJ* ; Dittmann, R.FZJ* ; De Souza, R. A.

2016
AIP Publ. Melville, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/13449  doi:10.1063/1.4972996

Abstract: SrRuO3 thin-films were deposited with different pulse repetition rates, fdep, epitaxially on vicinal SrTiO3 substrates by means of pulsed laser deposition. The measurement of several physical properties (e.g., composition by means of X-ray photoelectron spectroscopy, the out-of-plane lattice parameter, the electric conductivity, and the Curie temperature) consistently reveals that an increase in laser repetition rate results in an increase in ruthenium deficiency in the films. By the same token, it is shown that when using low repetition rates, approaching a nearly stoichiometric cation ratio in SrRuO3 becomes feasible. Based on these results, we propose a mechanism to explain the widely observed Ru deficiency of SrRuO3 thin-films. Our findings demand these theoretical considerations to be based on kinetic rather than widely employed thermodynamic arguments.

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Contributing Institute(s):

1. Elektronische Materialien (PGI-7)

Research Program(s):

1. 521 - Controlling Electron Charge-Based Phenomena (POF3-521) (POF3-521)

Appears in the scientific report 2016

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Database coverage:
; ; ; ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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