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An investigation of the magnetic properties of heavy REPtln alloys

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posted on 08.08.2018, 10:07 by Tamsin Stephens
Previously studies of the heavy REPtIn alloys (RE = rare earth) have shown a canting of the magnetic moments away from the c-axis. This tilting is still present even with the introduction of external fields up to 5.5 Tesla. The mechanism causing the tilting is still unknown. To obtain more information about the cause of this tilting an experimental investigation of the magnetic properties of these heavy REPtln alloys has been made. A working hypothesis is presented for the model responsible for the canting. This proposes that conduction electrons passing from one rare earth atom to the next pass via the platinum atom. Dzyaloshinsky–Moriya interaction caused by the spin-orbital field of the platinum causes the non-collinear structure. Through measurements of specific heat and magnetism and elastic and inelastic neutron scattering information has been gathered to help to explore this hypothesis and examine the crystal fields which also determine the magnetic properties of these alloys.

Funding

Loughborough University.

History

School

  • Science

Department

  • Physics

Publisher

© Tamsin Stephens

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2005

Notes

A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.

Language

en

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