Designer Quantum Materials Out of Equilibrium

Información del proyecto

AlterMateria

Identificador del acuerdo de subvención: 677458

DOI

10.3030/677458

Proyecto cerrado

Fecha de la firma de la CE 26 Febrero 2016

Fecha de inicio 1 Junio 2016

Fecha de finalización 31 Mayo 2021

Financiado con arreglo a

• EXCELLENT SCIENCE - European Research Council (ERC)

Coste total

€ 1 499 982,00

Aportación de la UE

€ 1 499 982,00

Coordinado por

TECHNISCHE UNIVERSITEIT DELFT
Netherlands

Periodic Reporting for period 4 - AlterMateria (Designer Quantum Materials Out of Equilibrium)

Período documentado: 2020-12-01 hasta 2021-05-31

Resumen del contexto y de los objetivos generales del proyecto

The energy consumption associated with information processing and storage is rapidly becoming unsustainable. The manipulation of magnetism and other collective quantum phenomena in solids using ultrashort pulses of light is a promising route towards implementing non-volatile and low-dissipation storage of information. In this project we address these questions in a class of materials recently discovered. We have demonstrated ultraefficient magnetic switching obtained by ultrafast control of the crystal lattice. In order to reach this goal, we developed bespoke materials engineered at the atomic scale.

Trabajo realizado desde el comienzo del proyecto hasta el final del período abarcado por el informe y los principales resultados hasta la fecha

For this project we have designed a new class of magnetic materials controlled at the atomic scale, where magnetism is strongly coupled to the exact atomic configuration of the crystal lattice. Such an unstable landscape is produced by design, in order to create a magnetic system susceptible to switching with ultralow dissipation.

Avances que van más allá del estado de la técnica e impacto potencial esperado (incluida la repercusión socioeconómica y las implicaciones sociales más amplias del proyecto hasta la fecha)

Our ever-growing demand for data processing calls for new methods to manipulate and control the state of magnetic materials on short timescales. These materials host elementary magnetic moments, called spins, whose arrangement is mainly determined by the arrangement of the atoms in the crystal lattice. Therefore, the most natural route towards control of the magnetic state is to change the crystal configuration. High mechanical pressure is normally required to make a sufficient impact on magnetic properties,. However, applying a mechanical strain is intrinsically a very slow process. In our experiments we have found a solution to this problem. Using light to optically shake a magnet by resonantly stimulating specific atomic vibrations of the lattice, we were able to change its magnetic state.

Ligth control of magnatic interactions