DYNAFUN DYNamics of FUNctional materials

Session

Session 1 : Materials Science 1

12 Sept 2022, 16:30

1. DYNAFUN introduction

andrea piovano (ILL)

12/09/2022, 16:30

Oral

Functional materials are those possessing desirable tuned properties for applications such as, but not limited to, energy harvesting, storage, memory and communication devices. Functional materials can be any type of specially designed material with a determined function: semiconductors, polymers, porous media, molecular crystals or nanoparticles are good examples of them. Their special...

6. Investigating the role of phonons in magnetic relaxation of molecular nanomagnets with inelastic neutron scattering

Dr Elena Garlatti (Dipartimento di Scienze Matematiche, Fisiche e Informatiche, Università di Parma)

12/09/2022, 16:40

Oral

In the quest for quantum technologies, Molecular Magnetism is offering a variety of promising systems. Indeed, Molecular NanoMagnets (MNMs) can either be exploited as classical bits in high-density magnetic memories or as qubits for quantum information processing. One of the most important goals in the current research in this field is to reach a deep understanding of magnetic relaxation and...

10. Effects of orientational disorder on the dynamics of barocaloric adamantane

Ms Bernet Meijer (Queen Mary University London)

12/09/2022, 17:15

Oral

Weak van der Waals interactions that bind together organic molecules in the solid state lie at the heart of many highly relevant scientific problems, from soot formation in the atmosphere to polymorphism in pharmaceutical compounds. Nonetheless, the effects of these forces on the structure and (especially) dynamics of molecular materials are not yet fully understood.
Another application of van...

5. Exploring the entropy change in barocaloric ammonium sulfate using QENS and INS

Helen Walker (ISIS Neutron and Muon Source)

12/09/2022, 17:40

Oral

Ammonium sulfate, a common garden fertiliser, displays a ferroelectric phase transition with a large entropy change whose origins have proved controversial. Understanding this will provide an important insight in to its barocaloric properties, and how these might be developed into future environmentally friendly cooling applications. Here we approach this question using quasielastic,...

12. Tuning magnetoelectricity in a mixed-anisotropy antiferromagnet

Dr Ellen Fogh (Laboratory for Quantum Magnetism, Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland)

12/09/2022, 18:05

Oral

The ability to control magnetic and electric properties is attractive for tailoring materials for devices, data storage and sensor technology. In magnetoelectric materials, these two degrees of freedom are closely linked and this makes them particularly interesting [1]. Here we study one such system, LiNi$_{1−x}$Fe$_x$PO$_4$, using magnetometry, polarized neutron diffraction, pyrocurrent...