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Open AccessFeature PaperArticle

Field-Induced Transitions in Highly Frustrated SrHo2O4

1
Department of Physics, University of Warwick, Coventry CV4 7AL, UK
2
ISIS Pulsed Neutron Facility, Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX, UK
3
Institut Laue-Langevin, 6 Jules Horowitz, BP156, CEDEX 9, 38042 Grenoble, France
*
Authors to whom correspondence should be addressed.
Crystals 2019, 9(10), 488; https://doi.org/10.3390/cryst9100488
Received: 31 July 2019 / Revised: 12 September 2019 / Accepted: 17 September 2019 / Published: 22 September 2019
(This article belongs to the Special Issue Magnetic Field-induced Phase Transition)
SrHo 2O 4 is a geometrically frustrated magnet in which the magnetic Ho 3 + ions are connected through a network of zigzag chains and coupled by several competing interactions. The Ho 3 + ions show a pronounced Ising anisotropy at low temperatures, and the spins on the two crystallographically inequivalent magnetic sites point along orthogonal crystallographic axes. Using single-crystal neutron diffraction, we report on the development of complex and highly anisotropic short- and long-range magnetic order in SrHo 2O 4 induced by an applied magnetic field. For H c , the diffuse scattering around the k = 0 positions is suppressed and above 0.5 T the spin structure for one of the Ho sites is long-range and ferromagnetic. For H b , planes of diffuse scattering at Q = ( h k ± l 2 ) are split by the field, and an up–up–down magnetic order associated with a 1/3-magnetisation plateau develops at 0.8 T. Further increasing the field above 1.2 T allows the second Ho site to also order in a long-range ferromagnetic structure. View Full-Text
Keywords: magnetic phase transitions; single crystals; competing interactions magnetic phase transitions; single crystals; competing interactions
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MDPI and ACS Style

Young, O.; Balakrishnan, G.; Manuel, P.; Khalyavin, D.D.; Wildes, A.R.; Petrenko, O.A. Field-Induced Transitions in Highly Frustrated SrHo2O4. Crystals 2019, 9, 488.

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