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A Room-Temperature Verwey-type Transition in Iron Oxide, Fe 5 O 6 .

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العنوان: A Room-Temperature Verwey-type Transition in Iron Oxide, Fe 5 O 6 .
المؤلفون: Ovsyannikov SV; Bayerisches Geoinstitut, Universität Bayreuth, Universitätsstrasse 30, 95447, Bayreuth, Germany.; Institute for Solid State Chemistry of Ural Branch of Russian Academy of Sciences, 91 Pervomayskaya Str., 620990, Yekaterinburg, Russia., Bykov M; Bayerisches Geoinstitut, Universität Bayreuth, Universitätsstrasse 30, 95447, Bayreuth, Germany.; Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Rd. NW, 20015, Washington, DC, USA., Medvedev SA; Max Planck Institute for Chemical Physics of Solids, 01187, Dresden, Germany., Naumov PG; Max Planck Institute for Chemical Physics of Solids, 01187, Dresden, Germany.; FSRC 'Crystallography and Photonics' RAS, Leninskiy Prospekt 59, Moscow, 119333, Russia., Jesche A; Experimental Physics VI, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, 86135, Augsburg, Germany., Tsirlin AA; Experimental Physics VI, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, 86135, Augsburg, Germany., Bykova E; Bayerisches Geoinstitut, Universität Bayreuth, Universitätsstrasse 30, 95447, Bayreuth, Germany.; Deutsches Elektronen-Synchrotron (DESY), 22603, Hamburg, Germany., Chuvashova I; Bayerisches Geoinstitut, Universität Bayreuth, Universitätsstrasse 30, 95447, Bayreuth, Germany., Karkin AE; M. N. Miheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences, 18 S. Kovalevskaya Str., Yekaterinburg, 620137, Russia., Dyadkin V; Swiss-Norwegian Beamlines at the European Synchrotron Radiation Facility, 38000, Grenoble, France., Chernyshov D; Swiss-Norwegian Beamlines at the European Synchrotron Radiation Facility, 38000, Grenoble, France., Dubrovinsky LS; Bayerisches Geoinstitut, Universität Bayreuth, Universitätsstrasse 30, 95447, Bayreuth, Germany.
المصدر: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2020 Mar 27; Vol. 59 (14), pp. 5632-5636. Date of Electronic Publication: 2020 Jan 30.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Wiley-VCH Country of Publication: Germany NLM ID: 0370543 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1521-3773 (Electronic) Linking ISSN: 14337851 NLM ISO Abbreviation: Angew Chem Int Ed Engl Subsets: PubMed not MEDLINE; MEDLINE
أسماء مطبوعة: Publication: <2004-> : Weinheim : Wiley-VCH
Original Publication: Weinheim/Bergstr. : New York, : Verlag Chemie ; Academic Press, c1962-
مستخلص: Functional oxides whose physicochemical properties may be reversibly changed at standard conditions are potential candidates for the use in next-generation nanoelectronic devices. To date, vanadium dioxide (VO 2 ) is the only known simple transition-metal oxide that demonstrates a near-room-temperature metal-insulator transition that may be used in such appliances. In this work, we synthesized and investigated the crystals of a novel mixed-valent iron oxide with an unconventional Fe 5 O 6 stoichiometry. Near 275 K, Fe 5 O 6 undergoes a Verwey-type charge-ordering transition that is concurrent with a dimerization in the iron chains and a following formation of new Fe-Fe chemical bonds. This unique feature highlights Fe 5 O 6 as a promising candidate for the use in innovative applications. We established that the minimal Fe-Fe distance in the octahedral chains is a key parameter that determines the type and temperature of charge ordering. This model provides new insights into charge-ordering phenomena in transition-metal oxides in general.
(© 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.)
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معلومات مُعتمدة: OV-110/3-1 DFG; JE748/1 DFG; Sofja Kovalevkaya Award Alexander von Humboldt-Stiftung; Ministry of Science and Higher Education within the State assignment FSRC «Crystallography and Photonics» RAS
فهرسة مساهمة: Keywords: Verwey transition; charge ordering; high pressure; iron oxides; transition metal oxide
تواريخ الأحداث: Date Created: 20200104 Latest Revision: 20200416
رمز التحديث: 20221213
مُعرف محوري في PubMed: PMC7154779
DOI: 10.1002/anie.201914988
PMID: 31899577
قاعدة البيانات: MEDLINE
الوصف
تدمد:1521-3773
DOI:10.1002/anie.201914988