Neutron scattering study of dipolar spin ice Ho_2Sn_2O_7: Frustrated pyrochlore magnet

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dc.creatorKadowaki, Hiroaki
dc.creatorIshii, Yoshinobu
dc.creatorMatsuhira, Kazuyuki
dc.creatorHinatsu, Yukio
dc.date2001-07-12
dc.date2001-07-13
dc.date.accessioned2026-07-07T06:24:35Z
dc.date.available2026-07-07T06:24:35Z
dc.descriptionBy means of neutron scattering techniques we have investigated the frustrated pyrochlore magnet Ho_2Sn_2O_7, which was found to show a ferromagnetic spin-ice behavior below T \simeq 1.4 K by susceptibility measurements. High-resolution powder-neutron-diffraction shows no detectable disorder of the lattice, which implies appearance of a random magnetic state solely by frustrated geometry, i.e., the corner sharing tetrahedra. Magnetic inelastic-scattering spectra show that Ho magnetic moments behave as an Ising spin system at low temperatures, and that the spin fluctuation has static character. The system remains in a short-range ordered state down to T = 0.4 K. By analyzing the wave-number dependence of the magnetic scattering using a mean field theory, it is clarified that the Ising spins interact via the dipolar interaction. Therefore we conclude that Ho_2Sn_2O_7 belongs to the dipolar-spin-ice family. Slow spin dynamics is exhibited as thermal hysteresis and time dependence of the magnetic scattering.
dc.description9 pages, 9 figures, submitted to Phys. Rev. B, Contact: kadowaki@phys.metro-u.ac.jp
dc.identifierhttps://arxiv.org/abs/cond-mat/0107278
dc.identifierhttp://arxiv.org/abs/cond-mat/0107278
dc.identifierPhys. Rev. B 65, 144421 (2002)
dc.identifierdoi:10.1103/PhysRevB.65.144421
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96595
dc.subjectDisordered Systems and Neural Networks
dc.titleNeutron scattering study of dipolar spin ice Ho_2Sn_2O_7: Frustrated pyrochlore magnet
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