Magnetic and structural properties of ferromagnetic Fe5PB2 and Fe5SiB2 and effects of Co and Mn substitutions

McGuire, Michael A.; Parker, David S.

doi:10.1063/1.4934496

Title: Magnetic and structural properties of ferromagnetic Fe₅PB₂ and Fe₅SiB₂ and effects of Co and Mn substitutions

Abstract

Crystallographic and magnetic properties of Fe₅PB₂, Fe₄CoPB₂, Fe₄MnPB₂, Fe₅SiB₂, Fe₄CoSiB₂, and Fe₄MnSiB₂ are reported. All adopt the tetragonal Cr₅B₃ structure-type and are ferromagnetic at room temperature with easy axis of magnetization along the c-axis. The spin reorientation in Fe₅SiB₂ is observed as an anomaly in the magnetization near 170 K, and is suppressed by substitution of Co or Mn for Fe. The silicides are found to generally have larger magnetic moments than the phosphides, but the data suggests smaller magnetic anisotropy in the silicides. Cobalt substitution reduces the Curie temperatures by more than 100 K and ordered magnetic moments by 16-20%, while manganese substitution has a much smaller effect. This suggests Mn moments align ferromagnetically with the Fe and that Co does not have an ordered moment in these structures. Anisotropic thermal expansion is observed in Fe₅PB₂ and Fe₅SiB₂, with negative thermal expansion seen along the c-axis of Fe₅SiB₂. First principles calculations of the magnetic properties of Fe₅SiB₂ and Fe₄MnSiB₂ are reported. The results, including the magnetic moment and anisotropy, and are in good agreement with experiment.

Authors:

McGuire, Michael A. ^[1]; Parker, David S. ^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Thu Oct 22 00:00:00 EDT 2015

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Critical Materials Institute (CMI)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

OSTI Identifier:: 1286917

Alternate Identifier(s):: OSTI ID: 1420568

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Applied Physics

Additional Journal Information:: Journal Volume: 118; Journal Issue: 16; Journal ID: ISSN 0021-8979

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    McGuire, Michael A., and Parker, David S. Magnetic and structural properties of ferromagnetic Fe5PB2 and Fe5SiB2 and effects of Co and Mn substitutions.  United States: N. p., 2015. 
Web.  doi:10.1063/1.4934496.

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                    McGuire, Michael A., & Parker, David S. Magnetic and structural properties of ferromagnetic Fe5PB2 and Fe5SiB2 and effects of Co and Mn substitutions.  United States.  https://doi.org/10.1063/1.4934496

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                    McGuire, Michael A., and Parker, David S. Thu .  
"Magnetic and structural properties of ferromagnetic Fe5PB2 and Fe5SiB2 and effects of Co and Mn substitutions".  United States.  https://doi.org/10.1063/1.4934496.  https://www.osti.gov/servlets/purl/1286917.

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@article{osti_1286917,

  title        = {Magnetic and structural properties of ferromagnetic Fe5PB2 and Fe5SiB2 and effects of Co and Mn substitutions},

  author       = {McGuire, Michael A. and Parker, David S.},

  abstractNote = {Crystallographic and magnetic properties of Fe5PB2, Fe4CoPB2, Fe4MnPB2, Fe5SiB2, Fe4CoSiB2, and Fe4MnSiB2 are reported. All adopt the tetragonal Cr5B3 structure-type and are ferromagnetic at room temperature with easy axis of magnetization along the c-axis. The spin reorientation in Fe5SiB2 is observed as an anomaly in the magnetization near 170 K, and is suppressed by substitution of Co or Mn for Fe. The silicides are found to generally have larger magnetic moments than the phosphides, but the data suggests smaller magnetic anisotropy in the silicides. Cobalt substitution reduces the Curie temperatures by more than 100 K and ordered magnetic moments by 16-20%, while manganese substitution has a much smaller effect. This suggests Mn moments align ferromagnetically with the Fe and that Co does not have an ordered moment in these structures. Anisotropic thermal expansion is observed in Fe5PB2 and Fe5SiB2, with negative thermal expansion seen along the c-axis of Fe5SiB2. First principles calculations of the magnetic properties of Fe5SiB2 and Fe4MnSiB2 are reported. The results, including the magnetic moment and anisotropy, and are in good agreement with experiment.},

  doi          = {10.1063/1.4934496},

  journal      = {Journal of Applied Physics},

  number       = 16,

  volume       = 118,

  place        = {United States},

  year         = {Thu Oct 22 00:00:00 EDT 2015},

  month        = {Thu Oct 22 00:00:00 EDT 2015}

}

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Works referencing / citing this record:

Superconductivity and phase diagram in a transition metal doped Zr ₅ Ge ₃ compound
journal, June 2018

Li, Sheng; Liu, Xiaoyuan; Anand, Varun
Superconductor Science and Technology, Vol. 31, Issue 8
DOI: 10.1088/1361-6668/aac6a1

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Similar Records

Title: Magnetic and structural properties of ferromagnetic Fe5PB2 and Fe5SiB2 and effects of Co and Mn substitutions

Abstract

Citation Formats

Hard Magnetic Materials: A Perspective journal, December 2011

X-Ray Investigations on Me-Si-B Systems (Me = Mn, Fe, Co). I. Some Features of the Co-Si-B System at 1000 degrees C. Intermediate Phases in the Co-Si-B and Fe-Si-B Systems. journal, January 1959

X-Ray Investigations on M-Si-B Systems (M = Mn, Fe, Co). II. Some Features of the Fe-Si-B and Mn-Si-B Systems. journal, January 1960

X-Ray Investigations of the Ternary System Fe-P-B. Some Features of the Systems Cr-P-B, Mn-P-B, Co-P-B and Ni-P-B. journal, January 1962

Mössbauer and X-ray studies of Fe5PB2 journal, February 1975

MAGNETIC PROPERTIES OF Fe 5 SiB 2 AND RELATED COMPOUNDS journal, December 1976

Spin Rotation in Fe 5 SiB 2 journal, February 1978

Magnetic characterization of Mn5SiB2 and Mn5Si3 phases journal, September 2009

Reversible room-temperature magnetocaloric effect in Mn5PB2 journal, November 2010

First Order Magnetic Phase Transition in Fe 2 P journal, January 1978

Singular points in the magnetization curve of a polycrystalline ferromagnet journal, August 1974

Review of singular point detection techniques journal, April 2004

Generalized Gradient Approximation Made Simple journal, October 1996

Theoretical study on the role of dynamics on the unusual magnetic properties in MnBi journal, November 2014

Magnetic anisotropic effects and electronic correlations in MnBi ferromagnet journal, August 2014

Neutron Diffraction Study of the Structures and Magnetic Properties of Manganese Bismuthide journal, November 1956

The Magnetic and Crystallographic Properties of MnBi Studied by Neutron Diffraction. journal, January 1967

Symmetry-lowering lattice distortion at the spin reorientation in MnBi single crystals journal, November 2014

Ferromagnetism of Fe3Sn and Alloys journal, November 2014

Superconductivity and phase diagram in a transition metal doped Zr 5 Ge 3 compound journal, June 2018

Title: Magnetic and structural properties of ferromagnetic Fe₅PB₂ and Fe₅SiB₂ and effects of Co and Mn substitutions

Hard Magnetic Materials: A Perspective
journal, December 2011

X-Ray Investigations on Me-Si-B Systems (Me = Mn, Fe, Co). I. Some Features of the Co-Si-B System at 1000 degrees C. Intermediate Phases in the Co-Si-B and Fe-Si-B Systems.
journal, January 1959

X-Ray Investigations on M-Si-B Systems (M = Mn, Fe, Co). II. Some Features of the Fe-Si-B and Mn-Si-B Systems.
journal, January 1960

X-Ray Investigations of the Ternary System Fe-P-B. Some Features of the Systems Cr-P-B, Mn-P-B, Co-P-B and Ni-P-B.
journal, January 1962

Mössbauer and X-ray studies of Fe5PB2
journal, February 1975

MAGNETIC PROPERTIES OF Fe ₅ SiB ₂ AND RELATED COMPOUNDS
journal, December 1976

Spin Rotation in Fe ₅ SiB ₂
journal, February 1978

Magnetic characterization of Mn5SiB2 and Mn5Si3 phases
journal, September 2009

Reversible room-temperature magnetocaloric effect in Mn5PB2
journal, November 2010

First Order Magnetic Phase Transition in Fe ₂ P
journal, January 1978

Singular points in the magnetization curve of a polycrystalline ferromagnet
journal, August 1974

Review of singular point detection techniques
journal, April 2004

Generalized Gradient Approximation Made Simple
journal, October 1996

Theoretical study on the role of dynamics on the unusual magnetic properties in MnBi
journal, November 2014

Magnetic anisotropic effects and electronic correlations in MnBi ferromagnet
journal, August 2014

Neutron Diffraction Study of the Structures and Magnetic Properties of Manganese Bismuthide
journal, November 1956

The Magnetic and Crystallographic Properties of MnBi Studied by Neutron Diffraction.
journal, January 1967

Symmetry-lowering lattice distortion at the spin reorientation in MnBi single crystals
journal, November 2014

Ferromagnetism of Fe3Sn and Alloys
journal, November 2014

Superconductivity and phase diagram in a transition metal doped Zr ₅ Ge ₃ compound
journal, June 2018