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Title: Study of non-linear Hall effect in nitrogen-grown ZnO microstructure and the effect of H{sup +}-implantation

We report magnetotransport studies on microstructured ZnO film grown by pulsed laser deposition in N{sub 2} atmosphere on a-plane Al{sub 2}O{sub 3} substrates and the effect of low energy H{sup +}-implantation. Non-linearity has been found in the magnetic field dependent Hall resistance, which decreases with temperature. We explain this effect with a two-band model assuming the conduction through two different parallel channels having different types of charge carriers. Reduced non-linearity after H{sup +}-implantation in the grown film is due to the shallow-donor effect of hydrogen giving rise to an increment in the electron density, reducing the effect of the other channel.
Authors:
; ; ; ;  [1]
  1. Division of Superconductivity and Magnetism, Fakultät für Physik und Geowissenschaften, Institute for Experimental Physics II, Linnéstrasse 5, 04103 Leipzig (Germany)
Publication Date:
OSTI Identifier:
22483189
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALUMINIUM OXIDES; CHARGE CARRIERS; ELECTRON DENSITY; ENERGY BEAM DEPOSITION; FILMS; HALL EFFECT; HYDROGEN IONS 1 PLUS; LASER RADIATION; MICROSTRUCTURE; NITROGEN; NONLINEAR PROBLEMS; PULSED IRRADIATION; SUBSTRATES; ZINC OXIDES