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Crystal structure and partial Ising-like magnetic ordering of orthorhombic Dy2TiO5

Title: Crystal Structure And Partial Ising-like Magnetic Ordering Of Orthorhombic Dy2tio5.
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Name(s): Shamblin, Jacob, author
Calder, Stuart, author
Dun, Zhiling, author
Lee, Minseong, author
Choi, Eun Sang, author
Neuefeind, Joerg, author
Zhou, Haidong, author
Lang, Maik, author
Type of Resource: text
Genre: Text
Date Issued: 2016-07-12
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The structure andmagnetic properties of orthorhombic Dy2TiO5 have been investigated using x-ray diffraction, neutron diffraction, and alternating current (ac)/direct current (dc) magnetic susceptibility measurements. We report a continuous structural distortion below 100 K characterized by negative thermal expansion in the [0 1 0] direction. Neutron diffraction and magnetic susceptibility measurements revealed that two-dimensional (2D) magnetic ordering begins at 3.1 K, which is followed by a three-dimensional magnetic transition at 1.7 K. The magnetic structure has been solved through a representational analysis approach and can be indexed with the propagation vector k = [0 1/2 0]. The spin structure corresponds to a coplanar model of interwoven 2D "sheets" extending in the [0 1 0] direction. The local crystal field is different for each Dy3+ ion (Dy1 and Dy2), one of which possesses strong uniaxial symmetry indicative of Ising-like magnetic ordering. Consequently, two succeeding transitions under magnetic field are observed in the ac susceptibility, which are associated with flipping each Dy3+ spin independently.
Identifier: FSU_libsubv1_wos_000379500900004 (IID), 10.1103/PhysRevB.94.024413 (DOI)
Keywords: ceramics, dy, dysprosium titanate, gd, immobilization, ln(2)tio(5) ln, nuclear-waste, plutonium, spin-ice, zero-point entropy
Publication Note: The publisher’s version of record is available at https://doi.org/10.1103/PhysRevB.94.024413
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000379500900004
Owner Institution: FSU
Is Part Of: Physical Review B.
2469-9950
Issue: iss. 2, vol. 94

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Shamblin, J., Calder, S., Dun, Z., Lee, M., Choi, E. S., Neuefeind, J., … Lang, M. (2016). Crystal Structure And Partial Ising-like Magnetic Ordering Of Orthorhombic Dy2tio5. Physical Review B. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000379500900004