skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Epitaxial Fe{sub 16}N{sub 2} films grown on Si(001) by reactive sputtering

Abstract

We present a crystallographic template for the growth of the range of Fe-N phases on Si(001) by lattice matching on selected underlayers. Epitaxial films of pure {alpha}-Fe, {gamma}{prime}-Fe{sub 4}N, and {alpha}{prime}-Fe{sub 8}N (N martensite) were grown individually by the optimization of reactive N{sub 2} sputtering parameters. The orientation relation of the Fe-N phases was Fe-N(001){parallel}Ag(001){parallel}Si(001) and Fe-N[100]{parallel}Ag[110]{parallel}Si[100]. Annealing the {alpha}{prime}-Fe{sub 8}N films resulted in the formation of {alpha}{prime}-Fe{sub 8}N/{alpha}{double_prime}-Fe{sub 16}N{sub 2} mixtures. In addition to the crystallographic and structural analysis, quantification of x-ray diffraction peak intensities confirmed that the {alpha}{prime}/{alpha}{double_prime} mixtures contained as much as 46 vol{percent} {alpha}{double_prime} (remaining {alpha}{prime}). Vibrating sample magnetometry and SQUID magnetometry measurements of the {alpha}{prime} and {alpha}{prime}(54{percent})/{alpha}{double_prime}(46{percent}) mixture, respectively, indicate enhanced magnetic moments for both the {alpha}{prime} and {alpha}{double_prime} phases with respect to pure Fe. {copyright} {ital 1996 American Institute of Physics.}

Authors:
;  [1];  [2]
  1. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  2. IBM Research Division, Almaden Research Center, San Jose, California 95120 (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory
OSTI Identifier:
280047
Report Number(s):
CONF-951101-
Journal ID: JAPIAU; ISSN 0021-8979; TRN: 9608M0102
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 79; Journal Issue: 8; Conference: 40. conference on magnetism and magnetic materials, Philadelphia, PA (United States), 6-9 Nov 1995; Other Information: PBD: Apr 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; IRON NITRIDES; CRYSTAL STRUCTURE; MAGNETIC PROPERTIES; SPUTTERING; EPITAXY; SILICON; SUBSTRATES; IRON-ALPHA; SILVER; PHASE STUDIES

Citation Formats

Brewer, M A, Krishnan, K M, and Ortiz, C. Epitaxial Fe{sub 16}N{sub 2} films grown on Si(001) by reactive sputtering. United States: N. p., 1996. Web. doi:10.1063/1.361365.
Brewer, M A, Krishnan, K M, & Ortiz, C. Epitaxial Fe{sub 16}N{sub 2} films grown on Si(001) by reactive sputtering. United States. https://doi.org/10.1063/1.361365
Brewer, M A, Krishnan, K M, and Ortiz, C. Mon . "Epitaxial Fe{sub 16}N{sub 2} films grown on Si(001) by reactive sputtering". United States. https://doi.org/10.1063/1.361365.
@article{osti_280047,
title = {Epitaxial Fe{sub 16}N{sub 2} films grown on Si(001) by reactive sputtering},
author = {Brewer, M A and Krishnan, K M and Ortiz, C},
abstractNote = {We present a crystallographic template for the growth of the range of Fe-N phases on Si(001) by lattice matching on selected underlayers. Epitaxial films of pure {alpha}-Fe, {gamma}{prime}-Fe{sub 4}N, and {alpha}{prime}-Fe{sub 8}N (N martensite) were grown individually by the optimization of reactive N{sub 2} sputtering parameters. The orientation relation of the Fe-N phases was Fe-N(001){parallel}Ag(001){parallel}Si(001) and Fe-N[100]{parallel}Ag[110]{parallel}Si[100]. Annealing the {alpha}{prime}-Fe{sub 8}N films resulted in the formation of {alpha}{prime}-Fe{sub 8}N/{alpha}{double_prime}-Fe{sub 16}N{sub 2} mixtures. In addition to the crystallographic and structural analysis, quantification of x-ray diffraction peak intensities confirmed that the {alpha}{prime}/{alpha}{double_prime} mixtures contained as much as 46 vol{percent} {alpha}{double_prime} (remaining {alpha}{prime}). Vibrating sample magnetometry and SQUID magnetometry measurements of the {alpha}{prime} and {alpha}{prime}(54{percent})/{alpha}{double_prime}(46{percent}) mixture, respectively, indicate enhanced magnetic moments for both the {alpha}{prime} and {alpha}{double_prime} phases with respect to pure Fe. {copyright} {ital 1996 American Institute of Physics.}},
doi = {10.1063/1.361365},
url = {https://www.osti.gov/biblio/280047}, journal = {Journal of Applied Physics},
number = 8,
volume = 79,
place = {United States},
year = {1996},
month = {4}
}