Images of a first order spin-reorientation phase transition in a metallic kagome ferromagnet

Autor: Heritage, Kevin, Bryant, Ben, Fenner, Laura A., Wills, Andrew S., Aeppli, Gabriel, Soh, Yeong-Ah

First order phase transitions, where one phase replaces another by virtue of a simple crossing of free energies, are best known between solids, liquids and vapours, but they also occur in a wide range of other contexts, including even elemental magne

Externí odkaz: http://arxiv.org/abs/1909.07768

Structural and magnetic characterisation of iron oxyselenides Ce2O2Fe2OSe2 and Nd2O2Fe2OSe2

Autor: McCabe, Emma E., Wills, Andrew S., Chapon, Laurent, Manuel, Pascal, Evans, John S. O.

Publikováno v: Phys. Rev. B 90, 165111 (2014)

We present here an investigation of the magnetic ordering in the Mott insulating oxyselenide materials Ln2O2Fe2OSe2 (Ln = Ce, Nd). Neutron powder diffraction data are consistent with a non-collinear multi-k ordering on the iron sublattice structure a

Externí odkaz: http://arxiv.org/abs/1410.4990

Spin dynamics in the S =1/2 kagome compound vesignieite, Cu3Ba(VO5H)2

Autor: Colman, Ross H, Bert, Fabrice, Boldrin, David, Hillier, Adrian D, Chapon, Laurent C, Manuel, Pascal, Mendels, Phillipe, Wills, Andrew S

We report the study of high quality samples of the frustrated S = 1/2 kagome antiferromagnet vesignieite, Cu3Ba(VO5H)2. Neutron powder diffraction measurements evidence the high quality of the kagome lattice and show no sign of a transition to long-r

Externí odkaz: http://arxiv.org/abs/1104.2558

Static and dynamic properties of Mn 2(OH) 2(C 4O 4)

Autor: Mole, Richard A., Stride, John A., Wills, Andrew S., Wood, Paul T.

Publikováno v: In Physica B: Physics of Condensed Matter 2006 385 Part 1:435-437

Possible topological contribution to the anomalous Hall effect of non-collinear ferromagnet Fe3Sn2

Autor: O'Neill, Christopher, Wills, Andrew S, Huxley, Andrew

Publikováno v: O'Neill, C, Wills, A S & Huxley, A 2019, ' Possible topological contribution to the anomalous Hall effect of non-collinear ferromagnet Fe3Sn2 ', Physical review B: Condensed matter and materials physics, vol. 100, no. 17 . https://doi.org/10.1103/PhysRevB.100.174420

The magnetisation, magnetoresistance and Hall eect of the kagome structured material Fe3Sn2 is reported for high quality single crystals. Previous investigations of Fe3Sn2 polycrystals detected ferromagnetism at Tc 657 K with moments along the easy c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3094::59c93881f63b83aafdd36a0b9e971ec9
https://www.pure.ed.ac.uk/ws/files/119144262/Fe3Sn2_CONeill.pdf