Bismuth and Graphene Nanostructures for Spintronics
This proposal addresses new scientific challenges in spintrontronics, with the focus on the miniaturization of magnetic sensors. Bismuth crystals and graphene layers show anomalously high Fermi wave length and mean free path. This...
ver más
¿Tienes un proyecto y buscas un partner? Gracias a nuestro motor inteligente podemos recomendarte los mejores socios y ponerte en contacto con ellos. Te lo explicamos en este video
Proyectos interesantes
MAT2008-06567-C02-02
PROPIEDADES MAGNETICAS Y DE MAGNETOTRANSPORTE DE MICRO- Y NA...
121K€
Cerrado
MAT2008-02626
DINAMICA ELECTRONICA Y TRANSPORTE DE CARGA Y ESPIN, EN NANOD...
152K€
Cerrado
SPIDERMAN
Electronic Transport and Spin dynamics through SiGe self ass...
100K€
Cerrado
MOLS@MOLS
Controlling Molecular Spin at the Molecular Scale
2M€
Cerrado
PID2021-122980OB-C52
CONTROL ELECTRICO DE LAS INTERACCIONES ESPIN-ORBITA Y DE NAN...
194K€
Cerrado
COSPINNANO
Coherent spin manipulation in hybrid nanostructures
100K€
Cerrado
Fecha límite de participación
Sin fecha límite de participación.
Descripción del proyecto
This proposal addresses new scientific challenges in spintrontronics, with the focus on the miniaturization of magnetic sensors. Bismuth crystals and graphene layers show anomalously high Fermi wave length and mean free path. This allows us the observation of electron confinement effects in the length scale of nano-lithography techniques. Both systems can be grown and processed on Si-based substrates, which paves the way for the integration with the existing semiconducting technology. Quantum transport properties are to be studied twofold: by means of intense magnetic fields in nano-patterned devices, and by means of scanning tunnelling microscopy (STM) and spectroscopy (STS) at the surface level. In Bi epitaxial films and graphene flakes, Landau quantization grants access to the topology of the Fermi surface through magnetotransport measurements. The exceptional high-mobility of Bi and graphene gives rise to giant Hall and magnetoresistance effects (> 300,000 %), strongly influenced by structural parameters. Another consequence is the large spin-difussion length, which enables the transport of spin-polarized currents through large distances. Furthermore, the spin-split surface state of Bi crystals and graphene in contact with magnetic electrodes opens up the possibility of polarizing magnetically the medium and injecting spin-polarized currents. The purpose of STM studies here is to assess the influence of structural details at the atomic level on the macroscopic magnetotransport properties of Bi and graphene. STM in combination with pulsed field experiments will be used to investigate the loss of the 2-dimensional character of the electric transport as a function of the sample thickness. Both research lines are very appealing because of the enormous potential for practical device applications and the underlying Physics behind them.