Next Article in Journal
A Mixed-Valence Tetra-Nuclear Nickel Dithiolene Complex: Synthesis, Crystal Structure, and the Lability of Its Nickel Sulfur Bonds
Previous Article in Journal
A Chiral Bis(salicylaldiminato)zinc(II) Complex with Second-Order Nonlinear Optical and Luminescent Properties in Solution
Open AccessArticle

A Partial Anion Disorder in SrVO2H Induced by Biaxial Tensile Strain

1
Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
2
École Supérieure d’Ingénieurs de Rennes (ESIR), Université de Rennes 1, Campus de Beaulieu, 263, Avenue du Général Leclerc, 35042 Rennes CEDEX, France
3
Department of Earth and Planetary Sciences, Kyoto University, Kitashirakawaoiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
4
Department of Physics, Kyoto University, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan
*
Authors to whom correspondence should be addressed.
Received: 16 March 2020 / Revised: 5 April 2020 / Accepted: 6 April 2020 / Published: 8 April 2020
(This article belongs to the Section Inorganic Solid-State Chemistry)
SrVO2H, obtained by a topochemical reaction of SrVO3 perovskite using CaH2, is an anion-ordered phase with hydride anions exclusively at the apical site. In this study, we conducted a CaH2 reduction of SrVO3 thin films epitaxially grown on KTaO3 (KTO) substrates. When reacted at 530 °C for 12 h, we observed an intermediate phase characterized by a smaller tetragonality of c/a = 0.96 (vs. c/a = 0.93 for SrVO2H), while a longer reaction of 24 h resulted in the known phase of SrVO2H. This fact suggests that the intermediate phase is a metastable state stabilized by applying tensile strain from the KTO substrate (1.4%). In addition, secondary ion mass spectrometry (SIMS) revealed that the intermediate phase has a hydrogen content close to that of SrVO2H, suggesting a partially disordered anion arrangement. Such kinetic trapping of an intermediate state by biaxial epitaxial strain not only helps to acquire a new state of matter but also advances our understanding of topochemical reaction processes in extended solids. View Full-Text
Keywords: oxyhydrides; SrVO2H; thin film; epitaxial strain; cis/trans configuration; order–disorder oxyhydrides; SrVO2H; thin film; epitaxial strain; cis/trans configuration; order–disorder
Show Figures

Graphical abstract

MDPI and ACS Style

Namba, M.; Takatsu, H.; Yoshimune, W.; Daniel, A.; Itoh, S.; Terashima, T.; Kageyama, H. A Partial Anion Disorder in SrVO2H Induced by Biaxial Tensile Strain. Inorganics 2020, 8, 26. https://0-doi-org.brum.beds.ac.uk/10.3390/inorganics8040026

AMA Style

Namba M, Takatsu H, Yoshimune W, Daniel A, Itoh S, Terashima T, Kageyama H. A Partial Anion Disorder in SrVO2H Induced by Biaxial Tensile Strain. Inorganics. 2020; 8(4):26. https://0-doi-org.brum.beds.ac.uk/10.3390/inorganics8040026

Chicago/Turabian Style

Namba, Morito; Takatsu, Hiroshi; Yoshimune, Wataru; Daniel, Aurélien; Itoh, Shoichi; Terashima, Takahito; Kageyama, Hiroshi. 2020. "A Partial Anion Disorder in SrVO2H Induced by Biaxial Tensile Strain" Inorganics 8, no. 4: 26. https://0-doi-org.brum.beds.ac.uk/10.3390/inorganics8040026

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop