Unexpected phase locking of magnetic fluctuations in the multi-k magnet USb

Joshua Lim; Elizabeth Blackburn; Nicola Magnani; Arno Hiess; L-P Regnault; R Caciuffo; GH Lander

doi:10.1103/PhysRevB.87.064421

Unexpected phase locking of magnetic fluctuations in the multi-k magnet USb

Joshua Lim
, Elizabeth Blackburn
, Nicola Magnani
, Arno Hiess
, L-P Regnault
, R Caciuffo
, GH Lander

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

244 Downloads (Pure)

Abstract

The spin waves in the multi-k antiferromagnet USb soften and become quasielastic well below the antiferromagnetic ordering temperature TN. This occurs without a magnetic or structural transition. It has been suggested that this change is in fact due to dephasing of the different multi-k components: a switch from 3-k to 1-k behavior. In this work, we use inelastic neutron scattering with tridirectional polarization analysis to probe the quasielastic magnetic excitations and reveal that the 3-k structure does not dephase. More surprisingly, the paramagnetic correlations also maintain the same clear phase correlations well above TN (up to at least 1.4TN).

Original language	English
Article number	064421
Journal	Physical Review B
Volume	87
DOIs	https://doi.org/10.1103/PhysRevB.87.064421
Publication status	Published - 25 Feb 2013

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10.1103/PhysRevB.87.064421

Blackburn_LBMH_13
American Physical Society
Final published version, 747 KB

3 Citations
1 Article

Coherent magnetic diffraction from the uranium M4 edge in the multi-k magnet, USb
Lim, J., Blackburn, E., Beutier, G., Livet, F., Magnani, N., Bombardi, A., Caciuffo, R. & Lander, G. H., 27 May 2014, In: Journal of Physics: Conference Series. 519, 012010.
Research output: Contribution to journal › Article › peer-review

Open Access
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2 Citations (Scopus)

191 Downloads (Pure)

2 Finished

Scattering Studies of Emergent Phenomena at Extreme Conditions of Magnetic Field and Temperature
Blackburn, E. (Principal Investigator) & Forgan, T. (Co-Investigator)
Engineering & Physical Science Research Council
1/07/12 → 31/12/15
Project: Research
Magnetic Flux Structures and Phase Transitions in Unconventional and Conventional Superconductors
Forgan, T. (Principal Investigator) & Blackburn, E. (Co-Investigator)
Engineering & Physical Science Research Council
1/04/09 → 30/09/12
Project: Research Councils

1 Industry event

ESS Symposium - Spin Dynamics of Correlated Electron Systems
Blackburn, E. (Invited speaker)
23 Feb 2012
Activity: Academic and Industrial events › Industry event

Cite this

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title = "Unexpected phase locking of magnetic fluctuations in the multi-k magnet USb",

abstract = "The spin waves in the multi-k antiferromagnet USb soften and become quasielastic well below the antiferromagnetic ordering temperature TN. This occurs without a magnetic or structural transition. It has been suggested that this change is in fact due to dephasing of the different multi-k components: a switch from 3-k to 1-k behavior. In this work, we use inelastic neutron scattering with tridirectional polarization analysis to probe the quasielastic magnetic excitations and reveal that the 3-k structure does not dephase. More surprisingly, the paramagnetic correlations also maintain the same clear phase correlations well above TN (up to at least 1.4TN).",

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AU - Blackburn, Elizabeth

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AU - Hiess, Arno

AU - Regnault, L-P

AU - Caciuffo, R

AU - Lander, GH

PY - 2013/2/25

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N2 - The spin waves in the multi-k antiferromagnet USb soften and become quasielastic well below the antiferromagnetic ordering temperature TN. This occurs without a magnetic or structural transition. It has been suggested that this change is in fact due to dephasing of the different multi-k components: a switch from 3-k to 1-k behavior. In this work, we use inelastic neutron scattering with tridirectional polarization analysis to probe the quasielastic magnetic excitations and reveal that the 3-k structure does not dephase. More surprisingly, the paramagnetic correlations also maintain the same clear phase correlations well above TN (up to at least 1.4TN).

AB - The spin waves in the multi-k antiferromagnet USb soften and become quasielastic well below the antiferromagnetic ordering temperature TN. This occurs without a magnetic or structural transition. It has been suggested that this change is in fact due to dephasing of the different multi-k components: a switch from 3-k to 1-k behavior. In this work, we use inelastic neutron scattering with tridirectional polarization analysis to probe the quasielastic magnetic excitations and reveal that the 3-k structure does not dephase. More surprisingly, the paramagnetic correlations also maintain the same clear phase correlations well above TN (up to at least 1.4TN).

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Unexpected phase locking of magnetic fluctuations in the multi-k magnet USb

Abstract

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Research output

Coherent magnetic diffraction from the uranium M4 edge in the multi-k magnet, USb

Projects

Scattering Studies of Emergent Phenomena at Extreme Conditions of Magnetic Field and Temperature

Magnetic Flux Structures and Phase Transitions in Unconventional and Conventional Superconductors

Activities

ESS Symposium - Spin Dynamics of Correlated Electron Systems

Cite this