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Title: Element-resolved magnetism across the temperature- and pressure-induced spin reorientation in MnBi

Journal Article · · Physical Review B
 [1];  [2];  [3];  [4];  [5];  [5];  [6];  [7];  [8];  [1];  [4]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Univ. of Illinois, Urbana-Champaign, IL (United States). Dept. of Geology
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  5. Ames Lab., Ames, IA (United States)
  6. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
  7. Carnegie Inst. of Washington, Argonne, IL (United States). Geophysical Lab.
  8. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States. Materials Science and Engineering Dept/

Rare-earth free permanent magnet MnBi (NiAs-type crystal structure) displays strong uniaxial magnetic anisotropy above its similar to 90 K spin reorientation transition (SRT). X-ray magnetic circular dichroism (XMCD) measurements at the Mn K and Bi L-2,(3) edges show induced magnetism in Bi, which is strongly coupled to the magnetism of Mn. Temperature- and pressure-dependent XMCD results reveal that hydrostatic pressure mimics the effect of temperature, driving a transition from uniaxial to in-plane anisotropy. The pressure and temperature transitions are shown to be connected to an anisotropic lattice contraction in NiAs-type structures. Temperature and pressure, hence, induce coupled structural and magnetic responses, highlighting the importance of both anisotropic lattice change and Mn-Bi hybridization in leading to the magnetic anisotropy change across the SRT. The dependence of magnetic anisotropy on the anisotropic lattice change is confirmed by density functional theory.

Research Organization:
Ames Lab., Ames, IA (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
FG02-99ER45775; AC02-06CH11357; NA0001974; AC02-07CH1358; AC05-76RL01830
OSTI ID:
1342924
Alternate ID(s):
OSTI ID: 1333604; OSTI ID: 1333993; OSTI ID: 1357208
Report Number(s):
IS-J-9161; PNNL-SA-118447; PRBMDO; TRN: US1701202
Journal Information:
Physical Review B, Vol. 94, Issue 18; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

References (34)

Generalized Gradient Approximation Made Simple journal October 1996
Magnetic, optical, and magneto-optical properties of Mn X ( X =As, Sb, or Bi) from full-potential calculations journal June 1999
Anomalous magneto-structural behavior of MnBi explained: A path towards an improved permanent magnet journal March 2014
Contribution to the equilibrium phase diagram of the Mn–Bi system near MnBi journal May 1974
Electronic structure of MnSb journal February 1985
Magnetic Transformation in MnBi journal July 1955
The electronic structure of MnBi journal October 1985
Electronic structure and magneto‐optical properties of MnBi and MnBiAl journal May 1994
The ruby pressure standard to 150GPa journal December 2005
Influence of chemical doping and hydrostatic pressure on the magnetic properties of Mn 1 x Fe x As magnetocaloric compounds journal February 2016
Can near-edge structure of the Bi L 3 edge determine the formal valence states of Bi? journal August 2006
Crystal structure, magnetic properties and electronic structure of the MnBi intermetallic compound journal June 2002
Depth profile of spin and orbital magnetic moments in a subnanometer Pt film on Co journal August 2005
Development of MnBi permanent magnet: Neutron diffraction of MnBi powder journal May 2014
Au and Fe magnetic moments in disordered Au-Fe alloys journal June 2008
X-ray circular dichroism and local magnetic fields journal February 1993
First-Principles Study of Electronic Structures of Mn X ( X =As, Sb, or Bi): Fully Relativistic Full-Potential Calculations journal June 2007
The phase transformation and physical properties of the MnBi and Mn<inf>1.08</inf>Bi compounds journal September 1974
Magnetic circular dichroism at the K edge of nickel and iron journal December 1994
Magnetic anisotropic effects and electronic correlations in MnBi ferromagnet journal August 2014
Element-resolved orbital polarization in (III,Mn)As ferromagnetic semiconductors from K -edge x-ray magnetic circular dichroism journal June 2010
Anisotropic nanocrystalline MnBi with high coercivity at high temperature journal August 2011
Theoretical study on the role of dynamics on the unusual magnetic properties in MnBi journal November 2014
Spin reorientation in MnBi journal April 2001
Magnetic spectroscopy at high pressures using X-ray magnetic circular dichroism journal September 2008
Magnetic properties of the MnBi intermetallic compound journal September 2001
Ab initio and experimental pre-edge investigations of the Mn K -edge XANES in oxide-type materials journal April 2005
X-ray circular dichroism as a probe of orbital magnetization journal March 1992
Neutron Diffraction Study of the Structures and Magnetic Properties of Manganese Bismuthide journal November 1956
The pressure dependence of the lattice parameters of MnSb and MnTe journal February 1969
Coordination and chemical effects on the structural, electronic, and magnetic properties in Mn pnictides journal August 2001
Valence band orbital polarization in III-V ferromagnetic semiconductors journal February 2008
Symmetry-lowering lattice distortion at the spin reorientation in MnBi single crystals journal November 2014
Origin of Magnetic Anisotropy in Cobalt-Substituted Magnetite journal June 1958

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