6 papers
Ground state magnetic structure of Mn3Sn
Jeppe Jon Cederholm, Zhian Xu, Yanfeng Guo +11
We use spherical neutron polarimetry to determine the ground state magnetic structure of Mn3Sn. We find that Mn3Sn adopts an inverse triangular structure with spins parallel to <10…
KVASIR: A backscattering neutron spectrometer for hard condensed matter at ESS
Amalie F. Davidsen, Kristine M. L. Krighaar, Pascale P. Deen +1
We present the instrument concept for KVASIR, a backscattering indirect time-of-flight neutron spectrometer for the European Spallation Source (ESS). KVASIR will probe low lying ex…
Emergence of low-energy spin waves in superconducting electron-doped cuprates
Kristine M. L. Krighaar, Jeppe J. Cederholm, Ellen M. S. Schriver +11
In order to fully utilize the technological potential of unconventional superconductors, an enhanced understanding of the superconducting mechanism is necessary. In the best perfor…
Characterization of the BIFROST spectrometer through virtual experiments
Kristine M. L. Krighaar, Silas B. Schack, Nicolai L. Amin +3
Using the Monte Carlo ray tracing package McStas, we illustrate the possibilities of creating virtual experiments of the neutron spectrometer BIFROST at the European Spallation Sou…
Accurate simulations of magnetic excitations in the neutron simulation package McStas
Silas B. Schack, Kristine M. L. Krighaar, Emma Y. Lenander +1
A new component for the accurate simulation of neutron scattering from magnetic excitations has been developed for the neutron ray-tracing software McStas. The component SpinWave_B…
Refined spin Hamiltonian on the Cairo pentagonal lattice of Bi2Fe4O9
Emma Y. Lenander, Frida B. Nielsen, Jakob Lass +14
The frustrated magnet Bi2Fe4O9 has been reported to exhibit complex spin dynamics coexisting with conventional spin wave excitations. The magnetic Fe3+ (S = 5/2) ions are arranged…