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Scaling at the Mott-Hubbard metal-insulator transition in yttrium hydride

Hoekstra, A. F. Th. and Roy, A. S. and Rosenbaum, T. F. (2003) Scaling at the Mott-Hubbard metal-insulator transition in yttrium hydride. Journal of Physics: Condensed Matter, 15 (9). pp. 1405-1413. ISSN 0953-8984. doi:10.1088/0953-8984/15/9/304.

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A single yttrium hydride thin film is conveniently driven through the T = 0 metal-insulator transition by fine-tuning the charge :carrier density n via persistent photoconductivity at low temperature. Simultaneously, electrical conductivity and Hall measurements are performed for temperatures T down to 350 mK and magnetic fields up to 14 T. A scaling analysis is applied and critical exponents, resolved separately on the metallic and insulating sides of the critical region, are determined consistently. We introduce corrections to scaling to invoke collapse of the data onto a single master curve over an extended region of the (n, T) phase diagram.

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Additional Information:© 2003 IOP Publishing. Received 14 January 2003; Published 24 February 2003. We are grateful to R Griessen for his continuing interest and scientific cooperation. This work was supported by the Royal Netherlands Academy of Arts and Sciences, the Dutch Stichting voor Fundamenteel Onderzoek der Materie and by the National Science Foundation under Grant DMR-0114798.
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Royal Netherlands Academy of Arts and SciencesUNSPECIFIED
Stichting voor Fundamenteel Onderzoek der Materie (FOM)UNSPECIFIED
Subject Keywords:Condensed matter: electrical, magnetic and optical Surfaces, interfaces and thin films
Issue or Number:9
Classification Code:PACS 71.30.+h Metal-insulator transitions and other electronic transitions 73.61.Ng Insulators 73.50.Jt Galvanomagnetic and other magnetotransport effects (including thermomagnetic effects) 73.50.Pz Photoconduction and photovoltaic effects 72.40.+w Photoc
Record Number:CaltechAUTHORS:20140707-163029232
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46958
Deposited By: George Porter
Deposited On:08 Jul 2014 21:46
Last Modified:12 Jul 2022 19:40

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