Magnetic ordering and structural distortion in a PrFeAsO single crystal studied by neutron and x-ray scattering | Zendy

M. G. Kim | Zendy; William Ratcliff | Zendy; Daniel M. Pajerowski | Zendy; JongWoo Kim | Zendy; Jiaqiang Yan | Zendy; J. W. Lynn | Zendy; A. I. Goldman | Zendy; A. Kreyßig | Zendy

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Magnetic ordering and structural distortion in a PrFeAsO single crystal studied by neutron and x-ray scattering

Author(s) -

M. G. Kim,

William Ratcliff,

Daniel M. Pajerowski,

JongWoo Kim,

Jiaqiang Yan,

J. W. Lynn,

A. I. Goldman,

A. Kreyßig

Publication year - 2021

Publication title -

physical review. b./physical review. b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.78

H-Index - 465

eISSN - 2469-9969

pISSN - 2469-9950

DOI - 10.1103/physrevb.103.174405

Subject(s) - neutron diffraction , orthorhombic crystal system , condensed matter physics , tetragonal crystal system , materials science , magnetic moment , diffraction , scattering , neutron scattering , crystallography , crystal structure , physics , optics , chemistry

We report the magnetic ordering and structural distortion in PrFeAsO crystals, the basis compound for one of the oxypnictide superconductors, using high-resolution x-ray diffraction, neutron diffraction, and x-ray resonant magnetic scattering (XRMS). We find the structural tetragonal-to-orthorhombic phase transition at T S = 147 K , the AFM phase transition of the Fe moments at T Fe = 72 K , and the Pr AFM phase transition at T Pr = 21 K . Combined high-resolution neutron diffraction and XRMS show unambiguously that the Pr moments point parallel to the longer orthorhombic a axis and order antiferromagnetically along the a axis but ferromagnetically along the b and c directions in the stripelike AFM order. The temperature-dependent magnetic order parameter of the Pr moments shows no evidence for a reorientation of moments.

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