Magnetic domain wall substructures in Pt/Co/Ni/Ir multi-layers

Metastable magnetic domain wall dynamics

The dynamics of metastable magnetic domain walls in straight ferromagnetic nanowires under spin waves, external magnetic fields and currentinduced spin-transfer torque are studied by means of micromagnetic simulations. It is found that in contrast to a stable wall, it is possible to displace a metastable domain wall in the absence of external excitation. In addition, independent of the domain w...

Domain Wall Dynamics in Magnetic Nanostructures

Magnetic domain wall propagation under ferroelectric control

E. Mikheev,1 I. Stolichnov,1 E. De Ranieri,2 J. Wunderlich,2 H. J. Trodahl,3 A. W. Rushforth,4 S. W. E. Riester,1 R. P. Campion,4 K. W. Edmonds,4 B. L. Gallagher,4 and N. Setter1 1Ceramics Laboratory, EPFL-Swiss Federal Institute of Technology, Lausanne 1015, Switzerland 2Hitachi Cambridge Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, United Kingdom 3MacDiarmid Institute for Advanced Mater...

Universality classes of magnetic domain wall motion.

We examine magnetic domain wall motion in metallic nanowires Pt-Co-Pt. Regardless of whether the motion is driven by either magnetic fields or current, all experimental data fall onto a single universal curve in the creep regime, implying that both the motions belong to the same universality class. This result is in contrast to the report on magnetic semiconductor (Ga,Mn)As exhibiting two diffe...

Micromagnetic simulations of magnetic domain wall dynamics

This summer project reproduces the foam experiment from previous summer but with oilwater emulsions. Increasing the viscosity of oil changes the droplets from soft to hard as well as the behavior from Newtonian liquid to granular matter. The expected outcome is Bachelor’s or Master’s Thesis or similar report depending on applicant’s background. The applicant is expected to have keen interest in...