EuFe2As2 magnetic structure determination
نویسندگان
چکیده
1 European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex 9, France 2 Juelich Centre for Neutron Science, IFF, Forschungszentrum Juelich, Outstation at FRM II, Lichtenbergstrasse 1, D-85747 Garching, Germany 3 Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India 4 Institut fuer Festkoerperforschung, Forschungszentrum Juelich, D-52425 Juelich, Germany 5 Department of Condensed Matter Physics and Material Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005, India
منابع مشابه
Structural and magnetic phase transitions in the ternary iron arsenides SrFe2As2 and EuFe2As2
The structural and magnetic phase transitions of the ternary iron arsenides SrFe2As2 and EuFe2As2 were studied by temperature-dependent x-ray powder diffraction and 57Fe Mössbauer spectroscopy. Both compounds crystallize in the tetragonal ThCr2Si2-type structure at room temperature and exhibit displacive structural transitions at 203 K (SrFe2As2) and 190 K (EuFe2As2), respectively, to orthorhom...
متن کاملRAPID COMMUNICATION Structural and magnetic phase transitions in the ternary iron arsenides SrFe2As2 and EuFe2As2
The structural and magnetic phase transitions of the ternary iron arsenides SrFe2As2 and EuFe2As2 were studied by temperature-dependent x-ray powder diffraction and Fe Mössbauer spectroscopy. Both compounds crystallize in the tetragonal ThCr2Si2-type structure at room temperature and exhibit displacive structural transitions at 203 K (SrFe2As2) or 190 K (EuFe2As2) to orthorhombic lattice symmet...
متن کاملMetamagnetic transition in EuFe2As2 single crystals
We report the measurements of anisotropic magnetization and magnetoresistance on single crystals of EuFe2As2, a parent compound of ferro-arsenide hightemperature superconductor. Apart from the antiferromagnetic (AFM) spin-densitywave transition at 186 K associated with Fe moments, the compound undergoes another magnetic phase transition at 19 K due to AFM ordering of Eu spins (J = S = 7/2). The...
متن کاملAuthor's personal copy Dependence of magnetic ordering temperature of doped and undoped EuFe2As2 on hydrostatic pressure to 0.8 GPa
The ac susceptibility of single crystalline tetragonal EuFe2As2, EuFe2As1.4P0.6, and EuFe1.715Co0.285As2 has been measured over the temperature and hydrostatic (He-gas) pressure ranges 10–60 K and 0–0.8 GPa, respectively. For all three samples the magnetic ordering temperature (17–19 K) from the Eu sublattice increases linearly with pressure, presumably due to the enhanced exchange coupling bet...
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We present a combination of magnetization and magnetic torque experiments to investigate the magnetic orders in undoped EuFe2As2 and Co-doped EuFe1.8Co0.2As2 single crystals. Although at low temperatures typical results for an antiferromagnetic (AFM) state in EuFe2As2 were found, our data strongly indicate the occurrence of a canted antiferromagnetic (C-AFM) order of the Eu2+ moments between 17...
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