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Magnetic structure, phase diagram, and a new type of spin-flop transition dominated by higher order interaction in a localized 5f system U3Pd20Si6

Koike, Y; Metoki, N; Haga, Y; McEwen, KA; Kohgi, M; Yamamoto, R; Aso, N; ... Aoki, H; + view all (2002) Magnetic structure, phase diagram, and a new type of spin-flop transition dominated by higher order interaction in a localized 5f system U3Pd20Si6. PHYS REV LETT , 89 (7) , Article 077202. 10.1103/PhysRevLett.89.077202. Green open access

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Abstract

The magnetic structure of the localized-5f uranium intermetallic compound U3Pd20Si6 has been determined by means of a neutron diffraction experiment. Our data demonstrate that this compound has a collinear coupling of the sublattice ordering of the uranium spins on the 4a and 8c sites. We conclude that higher-order exchange and/or quadrupole interactions are necessary to stabilize this unique collinear structure. We discovered a new type of spin-flop transition against the uniaxial anisotropy induced by this collinear coupling.

Type: Article
Title: Magnetic structure, phase diagram, and a new type of spin-flop transition dominated by higher order interaction in a localized 5f system U3Pd20Si6
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.89.077202
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.89.077202
Language: English
Keywords: COMPOUND U3PD20SI6, FIELD EXCITATIONS, ELECTRONS SYSTEM, URANIUM
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/54126
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