Publications de Jakob Lass | EPFL Graph Search

Connection between f-electron correlations and magnetic excitations in UTe2

The detailed anisotropic dispersion of the low-temperature, low-energy magnetic excitations of the candidate spin-triplet superconductor UTe2 is revealed using inelastic neutron scattering. The magnetic excitations emerge from the Brillouin zone boundary a ...

2025

Characterizing the diffuse continuum excitations in the classical spin liquid h-YMnO3

Jakob Lass

We extend previous inelastic neutron scattering results on the geometrically frustrated antiferromagnet hexagonal-YMnO3, 3 , which has been suggested to belong to the class of classical spin liquids. We expand the energy transfer range of the diffuse signa ...

AMER PHYSICAL SOC2024

Commissioning of the novel Continuous Angle Multi-energy Analysis spectrometer at the Paul Scherrer Institut

Henrik Moodysson Rønnow, Felix Groitl, Jakob Lass

We report on the commissioning results of the cold neutron multiplexing secondary spectrometer CAMEA (Continuous Angle Multi -Energy Analysis) at the Swiss Spallation Neutron Source at the Paul Scherrer Institut, Switzerland. CAMEA is optimized for efficie ...

AIP Publishing2023

Classical Spin Liquid or Extended Critical Range in h-YMnO3?

Sofie Janas, Jakob Lass

Neutron spectroscopy on the classical triangular-lattice frustrated antiferromagnet h-YMnO3 reveals diffuse, gapless magnetic excitations present both far below and above the ordering temperature. The correlation length of the excitations increases as the ...

AMER PHYSICAL SOC2021

Prototype of the novel CAMEA concept-A backend for neutron spectrometers

Henrik Moodysson Rønnow, Paul Gregory Freeman, Felix Groitl, Jakob Lass

2018