Concept
Résonance ferromagnétique
Publications associées (35)
Intracorporeal anchoring and guiding system with permanent magnet force modulation
Magnetic manipulation of objects within the body is a growing field of research since the second half of the last century. Therapeutic and diagnostic capabilities offered by such technology are extended with the clinical need to make procedures less invasi ...
EPFL2013Evidence for a Magnetic Seebeck Effect
Jean-Philippe Ansermet, Sylvain Bréchet, Francesco Antonio Vetrò, Elisa Papa
The irreversible thermodynamics of a continuous medium with magnetic dipoles predicts that a temperature gradient in the presence of magnetization waves induces a magnetic induction field, which is the magnetic analog of the Seebeck effect. This thermal gr ...
American Physical Society2013Coupling of Magnetic and Ferroelectric Hysteresis by a Multicomponent Magnetic Structure in Mn_{2}GeO_{4}
The olivine compound Mn2GeO4 is shown to feature both a ferroelectric polarization and a ferromagnetic magnetization that are directly coupled and point along the same direction. We show that a spin spiral generates ferroelectricity, and a canted commensur ...
2012Current-induced domain wall motion in nanoscale ferromagnetic elements
The manipulation of a magnetic domain wall (DW) by a spin polarized current in ferromagnetic nanowires has attracted tremendous interest during the last years due to fundamental questions in the fields of spin dependent transport phenomena and magnetizatio ...
2011Enhanced Curie temperature and nonvolatile switching of ferromagnetism in ultrathin (Ga,Mn)As channels
Nava Setter, Igor Stolichnov, Harry Joseph Trodahl, Sebastian Riester, Evgeny Mikheev
The integration of ferroelectric polymer gates on a Mn-doped GaAs magnetic channel provides a promising route for the persistent field-effect control of magnetic properties in high-quality diluted magnetic semiconductors (DMSs) that are otherwise incompati ...
2011Thermal Spin Transfer Torque and Transverse Spin Relaxation in Spin Valves
Spin caloritronics, i.e., the addition of thermal effects to the electrical and magnetic properties of nanostructures, has recently seen a rapid development. It has been predicted that a heat current can exert a spin torque on the magnetization in a nanost ...
EPFL2011Switching field modulation of a nanomagnet by resonant microwave spin torque
Jean-Philippe Ansermet, Elena Murè
We report on the effect of a low amplitude microwave current on the switching field of magnetic layers in a 40 nm diameter pseudo-spin valve grown by template synthesis. We show a frequency dependence at room temperature reflecting the dynamic behavior of ...
2010Field-dependent dielectric and magnetic properties in multiferroic CdCr2S4
Based on the results of field-dependent dielectric and magnetic measurements, we observe several interesting behaviors and phase transitions in this geometrically frustrated spinel system CdCr2S4. (1) A glassy dipolar state occurs near T-C similar to 85 K, ...
2009Magnetic phase diagram of the two-dimensional antiferromagnet Ni-5(TeO3)(4)Br-2
Phase diagram of the two-dimensional antiferromagnet Ni-5(TeO3)(4)Br-2 with triangular arrangement of Ni2+ (S=1) magnetic moments within the [Ni5O17Br2] subunits has been investigated by temperature and magnetic field dependent heat-capacity, magnetization ...
2009Search for nuclear magnetic resonance evidence of spin accumulation
Developments towards an understanding of the nature of conductance at the interface between two different metallic layers – ferromagnetic and non magnetic – as well as the discovery of giant magnetoresistance have stirred attention from both the scientific ...
EPFL2009