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Title: Evaluation of minority and majority spin band energies of ferromagnetic GdN thin film using optical absorption spectroscopy

Temperature dependent optical Tauc plots of AlN/GdN/AlN heterostructures have showed two optically induced transitions, and those optical transitions could be attributed to the minority and majority spin band energy. In contrast, temperature dependent magnetization measurements of GdN thin film provide direct evidence of spin ordering below 39 K, and which is also evidenced by Arrott plots.
Authors:
; ; ;  [1] ;  [2] ;  [3]
  1. Department of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University 567-8501 (Japan)
  2. Molecular Photoscience Research Center and Graduate School of Science, Kobe University 567-8501 (Japan)
  3. Center for Support to Research and Education Activities, Kobe University 657-8501 (Japan)
Publication Date:
OSTI Identifier:
22261841
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1566; Journal Issue: 1; Conference: ICPS 2012: 31. international conference on the physics of semiconductors, Zurich (Switzerland), 29 Jul - 3 Aug 2012; Other Information: (c) 2013 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; ABSORPTION SPECTROSCOPY; ALUMINIUM NITRIDES; GADOLINIUM NITRIDES; MAGNETIZATION; SPIN; TEMPERATURE DEPENDENCE; THIN FILMS