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Title: Lattice location and local magnetism of recoil implanted Fe impurities in wide and narrow band semiconductors CdTe, CdSe, and InSb: Experiment and theory

Employing the time differential perturbed angular distribution method, we have measured local susceptibility and spin relaxation rate of {sup 54}Fe nuclei implanted in III-V and II-VI semiconductors, CdTe, CdSe, and InSb. The magnetic response of Fe, identified to occupy the metal as well as the semi-metal atom sites, exhibit Curie-Weiss type susceptibility and Korringa like spin relaxation rate, revealing the existence of localized moments with small spin fluctuation temperature. The experimental results are supported by first principle electronic structure calculations performed within the frame work of density functional theory.
Authors:
;  [1]
  1. Tata Institute of Fundamental Research (TIFR), Homi Bhabha Road, Mumbai 400005 (India)
Publication Date:
OSTI Identifier:
22273455
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17; 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; ANGULAR DISTRIBUTION; CADMIUM SELENIDES; CADMIUM TELLURIDES; CURIE-WEISS LAW; DENSITY FUNCTIONAL METHOD; ELECTRONIC STRUCTURE; FLUCTUATIONS; INDIUM ANTIMONIDES; IRON 54; MAGNETISM; RECOILS; RELAXATION; SEMICONDUCTOR MATERIALS; SPIN