Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/12530
Title: Multiple magnetic phases in DyNiAl4
Authors: White, R
Hutchison, WD
Avdeev, M
Keywords: Dyprosium
Nickel
Magnetic properties
Rare earths
Temperature range
Order parameters
Ions
Issue Date: 2-Feb-2017
Publisher: Australian Institute of Physics
Citation: White, R., Hutchison, W. D., & Avdeev, M. (2016). Multiple magnetic phases in DyNiAl4. Poster presented to the 41st Annual Condensed Matter and Materials Meeting, Charles Sturt University, Wagga Wagga, NSW, Australia, 31st January - 3rd February 2017, (p.51). Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2017/Wagga_2017_Conference_Handbook.pdf
Abstract: Members of the orthorhombic RNiAl4 series of materials are known to display variations in the character and number of ordered magnetic phases dependent on the particular rare earth ion present. In TbNiAl4 there are two ordered phases, the first being an incommensurate elliptical helix type structure [1-3] and the second, lower temperature phase being a commensurate structure with magnetic moments aligned along the a-axis. In PrNiAl4, there are also two magnetic phases with the incommensurate phase in this case consisting of a sinusoidal modulation of the magnetic moment along the easy a-axis [4]. ErNiAl4 only has an incommensurate magnetic phase, with the magnetic moments pointing along the c-axis but sinusoidal in magnitude along the perpendicular a- and b-axes [5]. The magnetic phases generally exist independently of each other for a given compound, though in TbNiAl4 the incommensurate and commensurate phases have been shown to coexist in a decreasing magnetic field [2]. New neutron diffraction data recently obtained for DyNiAl4 using the ECHIDNA High Resolution Powder Diffractometer [6] has not only confirmed two ordered magnetic phases, but that these two phases coexist in the region between the two transition points identified in the specific heat data in zero applied field [7].
URI: https://physics.org.au/wp-content/uploads/cmm/2017/Wagga_2017_Conference_Handbook.pdf
https://apo.ansto.gov.au/dspace/handle/10238/12530
Appears in Collections:Conference Publications

Files in This Item:
File Description SizeFormat 
Wagga_2017_Conference_Handbook.pdf11.3 MBAdobe PDFThumbnail
View/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.