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

doi:https://doi.org/10.1063/1.361365

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

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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:

Brewer, M A; Krishnan, K M ^[1]; Ortiz, C ^[2]

Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
IBM Research Division, Almaden Research Center, San Jose, California 95120 (United States)

Publication Date:: 1996-04-01

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.

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                    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

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                    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.

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@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}

}

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