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Title: Epitaxy and Magnetic Properties of Surfactant-Mediated Growth of bcc Cobalt

Abstract

High resolution core level photoemission spectroscopy, photoelectron diffraction, and x-ray magnetic circular dicroism (XMCD) have been used to characterize the structural and magnetic properties of bcc-cobalt films grown on GaAs(110) substrates by using Sb as a surfactant. We have unambiguously disentangled the surfactant role played by the Sb which improves the crystallinity and reduces the lattice distortion of the metallic films as well as changes the interdiffusion process at the interface compared to the Co/GaAs(110) system. As a consequence of these combined effects, an improvement on the magnetic response of the grown Co thin films has been observed by XMCD measurements.

Authors:
 [1]; ;  [2]; ;  [1];  [3];  [4];  [5];  [6];  [7]
  1. Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette CEDEX (France)
  2. Instituto de Ciencia de Materiales, CSIC, 28049 Madrid (Spain)
  3. Centro Atomico Bariloche, Comision Nacional de Energia Atomica, 8400-Bariloche (Argentina)
  4. Magnetic Spectroscopy Group, Daresbury Laboratory, Warrington WA4 4AD (United Kingdom)
  5. Laboratoire Photophysique Moleculaire, Centre Universitaire Paris Sud, Ba circumflex timents 210 et 350, 91405 Orsay CEDEX (France)
  6. FOM-Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam (Netherlands)
  7. Departamento de Fisica Aplicada C-XII, Universidad Autonoma de Madrid, 28049 Madrid (Spain)
Publication Date:
OSTI Identifier:
20696268
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 94; Journal Issue: 18; Other Information: DOI: 10.1103/PhysRevLett.94.187601; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTRA; BCC LATTICES; COBALT; CRYSTAL GROWTH; ELECTRON DIFFRACTION; EPITAXY; FERROMAGNETIC MATERIALS; GALLIUM ARSENIDES; INTERFACES; MAGNETIC CIRCULAR DICHROISM; MAGNETIC PROPERTIES; PHOTOELECTRON SPECTROSCOPY; PHOTOEMISSION; SEMICONDUCTOR MATERIALS; SUBSTRATES; SURFACTANTS; THIN FILMS; X-RAY SPECTRA

Citation Formats

Izquierdo, M, Davila, M E, Franco, N, Avila, J, Asensio, M C, Instituto de Ciencia de Materiales, CSIC, 28049 Madrid, Ascolani, H, Teodorescu, C M, Martin, M G, Chrost, J, and Arranz, A. Epitaxy and Magnetic Properties of Surfactant-Mediated Growth of bcc Cobalt. United States: N. p., 2005. Web. doi:10.1103/PhysRevLett.94.187601.
Izquierdo, M, Davila, M E, Franco, N, Avila, J, Asensio, M C, Instituto de Ciencia de Materiales, CSIC, 28049 Madrid, Ascolani, H, Teodorescu, C M, Martin, M G, Chrost, J, & Arranz, A. Epitaxy and Magnetic Properties of Surfactant-Mediated Growth of bcc Cobalt. United States. https://doi.org/10.1103/PhysRevLett.94.187601
Izquierdo, M, Davila, M E, Franco, N, Avila, J, Asensio, M C, Instituto de Ciencia de Materiales, CSIC, 28049 Madrid, Ascolani, H, Teodorescu, C M, Martin, M G, Chrost, J, and Arranz, A. 2005. "Epitaxy and Magnetic Properties of Surfactant-Mediated Growth of bcc Cobalt". United States. https://doi.org/10.1103/PhysRevLett.94.187601.
@article{osti_20696268,
title = {Epitaxy and Magnetic Properties of Surfactant-Mediated Growth of bcc Cobalt},
author = {Izquierdo, M and Davila, M E and Franco, N and Avila, J and Asensio, M C and Instituto de Ciencia de Materiales, CSIC, 28049 Madrid and Ascolani, H and Teodorescu, C M and Martin, M G and Chrost, J and Arranz, A},
abstractNote = {High resolution core level photoemission spectroscopy, photoelectron diffraction, and x-ray magnetic circular dicroism (XMCD) have been used to characterize the structural and magnetic properties of bcc-cobalt films grown on GaAs(110) substrates by using Sb as a surfactant. We have unambiguously disentangled the surfactant role played by the Sb which improves the crystallinity and reduces the lattice distortion of the metallic films as well as changes the interdiffusion process at the interface compared to the Co/GaAs(110) system. As a consequence of these combined effects, an improvement on the magnetic response of the grown Co thin films has been observed by XMCD measurements.},
doi = {10.1103/PhysRevLett.94.187601},
url = {https://www.osti.gov/biblio/20696268}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 18,
volume = 94,
place = {United States},
year = {Fri May 13 00:00:00 EDT 2005},
month = {Fri May 13 00:00:00 EDT 2005}
}