Concept

Spintronique

Publications associées (316)

Lithography-free study of spin torque

We developed a non-lithographic technique to contact sub-100 nm nanowires for spin transfer torque experiments. Co/Cu multilayers were grown by electrodeposition in nanoporous commercial polycarbonate membranes from a Co/Cu bath. A home-made sample holder ...

Elsevier2010

Current Induced Magnetization Dynamics in Electrodeposited Nanostructures

Elena Murè

In this thesis we make use of the Spin Transfer Torque effect from a continuous microwave current to induce and study the spin dynamics of an individual sub-100 nm nanostructure. The idea that an electrical current can carry a spin angular momentum was int ...

EPFL2010

Measurement of interlayer spin diffusion in the organic conductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]X, X = Cl, Br

László Forró, Richard Gaal, Bálint Náfrádi, Agnes Antal

In organic conductors the overlap integral between layers is small In-plane momentum scattering is rapid and transport perpendicular to the layers is expected to be blocked We present a high frequency conduction electron spin resonance (CESR) study in the ...

2010

Temperature derivative of the resistance of spin valves

Jean-Philippe Ansermet, Haiming Yu, Simon Granville, Julie Dubois

Spin-dependent transport properties of nanowires containing individual Co/Cu/Co pseudo-spin valves were investigated by monitoring an AC voltage induced by a temperature oscillation under a continuous DC current. We observed sharp peaks in the field-depend ...

Elsevier2010

Spectroscopic Studies on Semiconducting Interfaces with Giant Spin Splitting

Emmanouil Frantzeskakis

The application of an external magnetic field can lift the spin degeneracy of electronic states through its interaction with the electronic magnetic moment. A closely-related phenomenon is the Rashba-Bychkov (RB) effect where symmetry breaking at surfaces ...

EPFL2010

Evidence for Thermal Spin-Transfer Torque

Jean-Philippe Ansermet, Haiming Yu, Simon Granville

Large heat currents are obtained in Co/Cu/Co spin valves positioned at the middle of Cu nanowires. The second harmonic voltage response to an applied current is used to investigate the effect of the heat current on the switching of the spin valves. Both th ...

American Physical Society2010

Magnonics

Dirk Grundler

Magnonics is a young field of research and technology emerging at the interfaces between the study of spin dynamics, on the one hand, and a number of other fields of nanoscale science and technology, on the other. We review the foundations and recent achie ...

2010

Tuning the giant Rashba effect on a BiAg2 surface alloy: Two different approaches

Klaus Kern, Marco Grioni, Alberto Crepaldi, Emmanouil Frantzeskakis

We discuss two different approaches for tuning the giant spin-orbit splitting of a BiAg2 surface alloy. The first approach consists of electron doping by alkaline metal deposition in order to shift the energy position of the spin-split surface states, whil ...

Elsevier2010

Advanced techniques for all-electrical spectroscopy on spin caloric phenomena

Dirk Grundler

Spin-dependent properties of nanomagnets and magnetic/nonmagnetic hybrid systems have gained a renewed interest after the discovery of spin caloric transport phenomena. To explore such properties in detail, advanced techniques need to be developed. In this ...

Elsevier2010

Ferroelectric Polymer Gates for Persistent Field Effect Control of Ferromagnetism in (Ga,Mn)As Layers

Sebastian Riester

The growing demand for higher computing power and element density continuously drives the development of novel device concepts. One group of materials currently attracting a lot of interest are the magnetoelectric multiferroics, due to their potential for ...

EPFL2010

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