Ursula Bengaard Hansen

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Publications associées (5)

Spin wave spectra of single crystal CoPS3

Henrik Moodysson Rønnow, Mechthild Enderle, Luc Testa, Ursula Bengaard Hansen

The spin waves in single crystals of the layered van der Waals antiferromagnet CoPS3 have been measured using inelastic neutron scattering. The data show four distinct spin wave branches with large (>14 meV) energy gaps at the Brillouin zone center indicat ...

2023

The instrument suite of the European Spallation Source

Michael Müller, Henrik Moodysson Rønnow, Paul Gregory Freeman, Ursula Bengaard Hansen, Markus Strobl

An overview is provided of the 15 neutron beam instruments making up the initial instrument suite of the European Spallation Source (ESS), and being made available to the neutron user community. The ESS neutron source consists of a high-power accelerator a ...

2020

24-spin clusters in the mineral boleite KPb26Ag9Cu24Cl62(OH)(48)

Henrik Moodysson Rønnow, Goran Nilsen, Ivica Zivkovic, Peter Babkevich, Ursula Bengaard Hansen, Nicola Casati

2018

Chemical tunnel-splitting-engineering in a dysprosium-based molecular nanomagnet

Henrik Moodysson Rønnow, Ivica Zivkovic, Ursula Bengaard Hansen

Nature Research2018

Spin excitations and quantum criticality in the quasi-one-dimensional Ising-like ferromagnet CoCl2⋅2D2O in a transverse field

Henrik Moodysson Rønnow, Ursula Bengaard Hansen

We present experimental evidence for a quantum phase transition in the easy-axis S=3/2 anisotropic quasi-one-dimensional ferromagnet CoCl2⋅2D2O in a transverse field. Elastic neutron scattering shows that the magnetic order parameter vanishes at a transver ...

2017

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