Wills, AS;
(2017)
A historical introduction to the symmetries of magnetic structures. Part 1. Early quantum theory, neutron powder diffraction and the coloured space groups.
Powder Diffraction
, 32
(2)
pp. 148-155.
10.1017/S0885715617000124.
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Abstract
This paper introduces the historical development of the symmetries for describing magnetic structures culminating in the derivation of the black and white and coloured space groups. Beginning from the Langevin model of the Curie law, it aims to show the challenges that magnetic ordering presented and how different symmetry frameworks were developed to meet them. As well as explaining core ideas, later papers will show how the different schemes are connected. With these goals in mind, the maths related is kept to the minimum required for clarity. Those wishing to learn more details are invited to engage with the references. As well as looking back and reviewing the development of magnetic symmetry over time, particular attention is spent on explaining where the concept of time-reversal has been applied. That time-reversal has different meaning in classical and quantum mechanical situations, has created confusions which continue to propagate.
| Type: | Article |
|---|---|
| Title: | A historical introduction to the symmetries of magnetic structures. Part 1. Early quantum theory, neutron powder diffraction and the coloured space groups |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1017/S0885715617000124 |
| Publisher version: | http://doi.org/10.1017/S0885715617000124 |
| Language: | English |
| Additional information: | © International Centre for Diffraction Data 2017. This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Technology, Materials Science, Characterization & Testing, Materials Science, Neel, magnetic structure, symmetry, Shubnikov, antisymmetry, space groups, ANTIFERROMAGNETISM |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1520782 |
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