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

M. G. Kim; W. Ratcliff; D. M. Pajerowski; J. W. Kim; J. Q. Yan; J. W. Lynn; A. I. Goldman; A. Kreyssig

doi:10.1103/PhysRevB.103.174405

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

M. G. Kim, W. Ratcliff, D. M. Pajerowski, J. W. Kim, J. Q. Yan, J. W. Lynn, A. I. Goldman, A. Kreyssig

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

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 TS=147K, the AFM phase transition of the Fe moments at TFe=72K, and the Pr AFM phase transition at TPr=21K. 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.

Original language	English
Article number	174405
Journal	Physical Review B
Volume	103
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.103.174405
State	Published - May 5 2021
Externally published	Yes

Funding

Work at Rutgers University was supported by the US Department of Energy (DOE) under Grant No. DE-FG02-07ER46382. Work by the Ames group was supported by the Department of Energy, Basic Energy Sciences, Division of Materials Sciences and Engineering, under Contract No. DE-AC02-07CH11358. This research used resources of the Advanced Photon Source, a US Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We acknowledge the support of the National Institute of Standards and Technology, US Department of Commerce, in providing facilities used in this work. The identification of any commercial product or trade name does not imply endorsement or recommendation by the National Institute of Standards and Technology.

Funders	Funder number
U.S. Department of Energy	DE-FG02-07ER46382
National Institute of Standards and Technology
U.S. Department of Commerce
Office of Science
Basic Energy Sciences
Argonne National Laboratory	DE-AC02-06CH11357
Division of Materials Sciences and Engineering	DE-AC02-07CH11358

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10.1103/PhysRevB.103.174405

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title = "Magnetic ordering and structural distortion in a PrFeAsO single crystal studied by neutron and X-ray scattering",

abstract = "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 TS=147K, the AFM phase transition of the Fe moments at TFe=72K, and the Pr AFM phase transition at TPr=21K. 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.",

author = "Kim, {M. G.} and W. Ratcliff and Pajerowski, {D. M.} and Kim, {J. W.} and Yan, {J. Q.} and Lynn, {J. W.} and Goldman, {A. I.} and A. Kreyssig",

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T1 - Magnetic ordering and structural distortion in a PrFeAsO single crystal studied by neutron and X-ray scattering

AU - Kim, M. G.

AU - Ratcliff, W.

AU - Pajerowski, D. M.

AU - Kim, J. W.

AU - Yan, J. Q.

AU - Lynn, J. W.

AU - Goldman, A. I.

AU - Kreyssig, A.

PY - 2021/5/5

Y1 - 2021/5/5

N2 - 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 TS=147K, the AFM phase transition of the Fe moments at TFe=72K, and the Pr AFM phase transition at TPr=21K. 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.

AB - 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 TS=147K, the AFM phase transition of the Fe moments at TFe=72K, and the Pr AFM phase transition at TPr=21K. 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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Magnetic ordering and structural distortion in a PrFeAsO single crystal studied by neutron and X-ray scattering

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