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Title: Positive magnetoresistance in ferromagnetic Nd-doped In{sub 2}O{sub 3} thin films grown by pulse laser deposition

We report the magnetic and magnetotransport properties of (In{sub 0.985}Nd{sub 0.015}){sub 2}O{sub 2.89} thin films grown by pulse laser deposition. The clear magnetization hysteresis loops with the complementary magnetic domain structure reveal the intrinsic room temperature ferromagnetism in the as-prepared films. The strong sp-f exchange interaction as a result of the rare earth doping is discussed as the origin of the magnetotransport behaviours. A positive magnetoresistance (∼29.2%) was observed at 5 K and ascribed to the strong ferromagnetic sp-f exchange interaction in (In{sub 0.985}Nd{sub 0.015}){sub 2}O{sub 2.89} thin films due to a large Zeeman splitting in an external magnetic field of 50 KOe.
Authors:
; ;  [1] ;  [2] ;  [3]
  1. School of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052 (Australia)
  2. School of Engineering and Applied Science, Harvard University, Cambridge, Massachusetts 02138 (United States)
  3. Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900 (Saudi Arabia)
Publication Date:
OSTI Identifier:
22300180
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 20; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DOMAIN STRUCTURE; DOPED MATERIALS; ENERGY BEAM DEPOSITION; EXCHANGE INTERACTIONS; FERROMAGNETISM; HYSTERESIS; INDIUM OXIDES; LASER RADIATION; MAGNETIC FIELDS; MAGNETIZATION; MAGNETORESISTANCE; NEODYMIUM ADDITIONS; TEMPERATURE RANGE 0273-0400 K; THIN FILMS; ZEEMAN EFFECT