Large easy-axis anisotropy in the one-dimensional magnet BaMo(PO4)(2)

Abdeldaim, Aly, 1993 (författare): University of Liverpool,Chalmers tekniska högskola,Chalmers University of Technology,STFC Rutherford Appleton Laboratory,Chalmers Univ Technol, Dept Chem & Chem Engn, Energy & Mat, SE-41296 Gothenburg, Sweden;Univ Liverpool, Dept Chem, 51 Oxford St, Oxford L7 3NY, Merseyside, England;Univ Liverpool, Mat Innovat Factory, 51 Oxford St, Oxford L7 3NY, Merseyside, England;Sci & Technol Facil Council, ISIS Neutron & Muon Source, Didcot OX11 0QX, Oxon, England,Ural Fed Univ, Theoret Phys & Appl Math Dept, Ekaterinburg 620002, Russia;Univ Augsburg, Inst Phys, Ctr Elect Correlat & Magnetism, Expt Phys 6, D-86135 Augsburg, Germany

Badrtdinov, Danis (författare): STFC Rutherford Appleton Laboratory,Ural Fed Univ, Theoret Phys & Appl Math Dept, Ekaterinburg 620002, Russia

Gibbs, Alexandra S. (författare): Science and Technology Facilities Council (STFC),Sci & Technol Facil Council, ISIS Neutron & Muon Source, Didcot OX11 0QX, Oxon, England

Manuel, Pascal (författare): Science and Technology Facilities Council (STFC),Sci & Technol Facil Council, ISIS Neutron & Muon Source, Didcot OX11 0QX, Oxon, England

Walker, Helen C. (författare): Science and Technology Facilities Council (STFC),Sci & Technol Facil Council, ISIS Neutron & Muon Source, Didcot OX11 0QX, Oxon, England

Wu, Chien Hung (författare): Science and Technology Facilities Council (STFC),Sci & Technol Facil Council, ISIS Neutron & Muon Source, Didcot OX11 0QX, Oxon, England

Wardecki, Dariusz Wojciech, 1981 (författare): Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Dept Chem & Chem Engn, Energy & Mat, SE-41296 Gothenburg, Sweden

Eriksson, Sten, 1958 (författare): Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Dept Chem & Chem Engn, Energy & Mat, SE-41296 Gothenburg, Sweden

Tsirlin, Alexander A. (författare): Ural Federal University,Universität Augsburg,University of Augsburg

Nilsen, Goran J. (författare): Science and Technology Facilities Council (STFC),Sci & Technol Facil Council, ISIS Neutron & Muon Source, Didcot OX11 0QX, Oxon, England

(creator_code:org_t)

AMER PHYSICAL SOC, 2019
2019
Engelska.
Ingår i: Physical Review B. - : AMER PHYSICAL SOC. - 2469-9969 .- 2469-9950. ; 100:21

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Abstract Ämnesord

Stäng

We present an extensive experimental and theoretical study on the low-temperature magnetic properties of the monoclinic anhydrous alum compound BaMo(PO4)(2). The magnetic susceptibility reveals strong antiferromagnetic interactions theta(CW) = -167 K and long-range magnetic order at T-N = 22 K, in agreement with a recent report. Powder neutron diffraction furthermore shows that the order is collinear, with the moments near the ac plane. Neutron spectroscopy reveals a large excitation gap Delta = 15 meV in the low-temperature ordered phase, suggesting a much larger easy-axis spin anisotropy than anticipated. However, the large anisotropy justifies the relatively high ordered moment, Neel temperature, and collinear order observed experimentally and is furthermore reproduced in a first-principles calculations by using a new computational scheme. We therefore propose BaMo(PO4)(2) to host S = 1 antiferromagnetic chains with large easy-axis anisotropy, which has been theoretically predicted to realize novel excitation continua.

Av författaren/redakt...: Abdeldaim, Aly, ...; Badrtdinov, Dani ...; Gibbs, Alexandra ...; Manuel, Pascal; Walker, Helen C.; Duc Le, Manh; visa fler...; Wu, Chien Hung; Wardecki, Darius ...; Eriksson, Sten, ...; Kvashnin, Yarosl ...; Tsirlin, Alexand ...; Nilsen, Goran J.; visa färre...

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