Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

In-plane hexagonal antiferromagnet in the Cu-Mn-As system Cu0.82 Mn1.18 As

Journal Article · · Physical Review Materials
 [1];  [1];  [1];  [2];  [3];  [3];  [4];  [1]
  1. Univ. of Illinois at Urbana-Champaign, IL (United States). Dept. of Materials Science and Engineering and Materials Research Lab.
  2. Univ. of Illinois at Urbana-Champaign, IL (United States). School of Chemical Sciences
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division
  4. Univ. of Illinois at Urbana-Champaign, IL (United States). Dept. of Materials Science and Engineering and Materials Research Lab., and National Center for Supercomputing Applications
We report the single-crystal growth and characterization of a hexagonal phase Cu0.82Mn1.18As, in the Cu-Mn-As system. This compound contains the same square-pyramidal MnAs5 units as the tetragonal and orthorhombic polymorphs of CuMnAs. Calorimetry, magnetometry, and neutron diffraction measurements reveal antiferromagnetic ordering at 270 K. The magnetic structure consists of a triangular arrangement of spins in the ab plane. Hexagonal Cu0.82Mn1.18As shows resistivity that varies only weakly from 5 to 300 K, and is many times higher than tetragonal CuMnAs, indicative of a strongly scattering metal. First-principles calculations confirm the metallic band structure with a small density of states at the Fermi energy. The neutron-refined magnetic ground state is close to the computationally determined minimum energy configuration. This compound should serve as a clear control when disentangling the effects of current-driven Néel switching of metallic antiferromagnets since it exhibits in-plane spins but the magnetic ordering does not break degeneracy along the a and b directions, unlike tetragonal CuMnAs.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1615988
Alternate ID(s):
OSTI ID: 1578200
Journal Information:
Physical Review Materials, Journal Name: Physical Review Materials Journal Issue: 11 Vol. 3; ISSN PRMHAR; ISSN 2475-9953
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (56)

Electrical conduction in concentrated disordered transition metal alloys journal June 1973
Electrical Resistivity and Magnetic Susceptibility Measurements on Copper Arsenides journal April 1973
The Crystal Structure of Mn3As2(III) journal December 1994
Kristallchemische Untersuchungen in den Systemen Mn?As, V?Sb, Ti?Sb journal January 1951
Synthesis and crystal structure of Mn4As3 and its relation to other manganese arsenides journal November 1995
Magnetic phase diagram of MnAs journal August 1985
Recent advances in magnetic structure determination by neutron powder diffraction journal October 1993
Specific heat and de Haas-van Alphen effect in NiAs journal July 1997
Synthesis and single crystal study of CuMn3As2 and Cu2Mn4As3 journal November 2015
The stability and physical properties of the tetragonal phase of bulk CuMnAs antiferromagnet journal January 2019
Room-temperature antiferromagnetism in CuMnAs journal April 2012
Tetragonal phase of epitaxial room-temperature antiferromagnet CuMnAs journal August 2013
Dirac fermions in an antiferromagnetic semimetal journal August 2016
Reducing Dzyaloshinskii-Moriya interaction and field-free spin-orbit torque switching in synthetic antiferromagnets journal May 2021
Current polarity-dependent manipulation of antiferromagnetic domains journal March 2018
Electronic structure of AlFeN films exhibiting crystallographic orientation change from c- to a-axis with Fe concentrations and annealing effect journal February 2020
Antiferromagnetic structure in tetragonal CuMnAs thin films journal November 2015
Magnetic Structure of MnAs and MnAs 0·92 P 0·08 journal March 1971
Magnetic Structures of Mn 2 As and Mn 2 Sb 0.7 As 0.3 journal March 1962
Electrical Properties of Heavily Doped Silicon journal November 1963
A dedicated powder diffraction beamline at the Advanced Photon Source: Commissioning and early operational results journal August 2008
Paramagnetic to antiferromagnetic transition in epitaxial tetragonal CuMnAs (invited) journal May 2015
Magnetic anisotropy of single-crystalline Mn 3 Sn in triangular and helix-phase states journal August 2015
WAND 2 —A versatile wide angle neutron powder/single crystal diffractometer journal September 2018
Neutron scattering lengths and cross sections journal January 1992
Density of states and electrical conductivity of disordered alloys with strong electron correlation journal February 1979
Determination of the magnetic structure of Mn 3 Sn using generalized neutron polarization analysis journal November 1990
Magnetization and 61 Ni Mössbauer effect study of the ternary arsenide CrNiAs journal July 2008
Static magnetic properties of the quasi-one-dimensional hexagonal antiferromagnet CsMnBr 3 journal January 1991
Electrical resistivity of FeAs, FeAs 2 and Fe 2 As at homogeneous high pressures journal October 2017
Special points for Brillouin-zone integrations journal June 1976
Projector augmented-wave method journal December 1994
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Magnetic behavior of Eu Cu 2 As 2 : A delicate balance between antiferromagnetic and ferromagnetic order journal November 2005
Calculation of the magnetic anisotropy with projected-augmented-wave methodology and the case study of disordered Fe 1 − x Co x alloys journal June 2016
Physical properties of the tetragonal CuMnAs: A first-principles study journal September 2017
Magnetic order induces symmetry breaking in the single-crystalline orthorhombic CuMnAs semimetal journal December 2017
Voltage-induced switching of an antiferromagnetically ordered topological Dirac semimetal journal April 2018
Imaging Current-Induced Switching of Antiferromagnetic Domains in CuMnAs journal January 2017
Generalized Gradient Approximation Made Simple journal October 1996
Enhanced Electrical Resistivity before Néel Order in the Metals R C u A s 2 ( R = S m , Gd, Tb, and Dy) journal July 2003
Electrical switching of an antiferromagnet journal January 2016
Neutron diffraction investigation of the atomic and magnetic structures of MnAs at high pressures journal January 2003
On the Magnetic Properties of the Compound Mn 2 As journal October 1960
The Magnetic Structure of Fe 2 As journal November 1966
Magnetic Susceptibilities of the Frustrated Triangular Lattice Antiferromagnets CsVCl 3 and VX 2 (X=Cl, Br and I):Appearance of Magnetic Liquid in the Ordered State journal August 1983
Symmetry-Based Computational Tools for Magnetic Crystallography journal July 2015
The crystal structure of Mn3As2(I) journal January 1990
The crystal structures of Mn3As2(II) and Mn5As4 determined from intergrown crystals journal January 1993
The crystal structures of Mn 3 As 2 (II) and Mn 5 As 4 determined from intergrown crystals journal January 1993
Structure and properties of the tetragonal phase of MnCuAs journal December 2011
Tetragonal phase of epitaxial room-temperature antiferromagnet CuMnAs text January 2014
Magnetic order induces symmetry breaking in the single crystalline orthorhombic CuMnAs semimetal text January 2017
Current-polarity dependent manipulation of antiferromagnetic domains text January 2017
Voltage induced switching of an antiferromagnetically ordered topological Dirac semimetal text January 2017

Similar Records

Coupled antiferromagnetic spin- 12 chains in green dioptase Cu6[Si6O18]·6H2O
Journal Article · Sun Jan 31 19:00:00 EST 2016 · Physical Review B · OSTI ID:1239762

Related Subjects