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English

Crystal structure and magnetic ordering in magnetoelectric KNiPO4 investigated by means of X-ray and neutron diffraction

Contributors

Fischer, Peter; Lujan Perez, Marcos Luis; Kubel, Frank; Schmid, Hans

Published in

Ferroelectrics, vol. 162, no. 1-4, p. 37-44

Publication date

1994

Abstract

The crystal structure of magnetoelec. KNiPO4 was refined by single crystal x-ray diffraction methods at room temp. confirming orthorhombic space group Pna21. Powder neutron diffraction studies showed that the room temp. structure is preserved down to 30 K. Consistent with magnetic susceptibility measurements, long-range antiferromagnetic ordering according to K = 0 and Shubnikov space group Pna21 is established by neutron diffraction at temps. below TN = (25.5+-0.5) K. The ordered magnetic moments of (3.00 +- 0.04) mB, oriented along [1, 0, 0], indicate large orbital contributions to the magnetic moments of Ni2+. DTA studies at 100-1000 Deg, showed two phase transitions, at 486.5 Deg and at 581.3 Deg. [on SciFinder (R)]

Keywords

  • Crystal structure
  • Magnetic moment
  • Magnetic susceptibility (of nickel potassium phosphate)
  • Magnetic structure (antiferro-, of nickel potassium phosphate) crystal magnetic structure potassium nickel phosphate

UNIGE affiliation entities

Funding

  • Swiss National Science Foundation - 1993

Citation (ISO format)

FISCHER, Peter et al. Crystal structure and magnetic ordering in magnetoelectric KNiPO4 investigated by means of X-ray and neutron diffraction. In: Ferroelectrics, 1994, vol. 162, n° 1-4, p. 37–44. doi: 10.1080/00150199408245088

Main files (1)

Article (Published version)

Identifiers

Journal ISSN

0015-0193
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Technical informations

Creation

08/11/2013 17:53:00

First validation

08/11/2013 17:53:00

Update

14/03/2023 20:38:15

Status update

14/03/2023 20:38:15

Last indexation

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