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20022013
most citedMatching domain wall configuration and spin-orbit torques for very efficient domain-wall motion

420 citations

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cond-mat.mes-hall2011★ 6 cited

Magnetoplasmons and SU(4) symmetry in graphene

Andrea M. Fischer, Rudolf A. Roemer, Alexander B. Dzyubenko

We study magnetoplasmons or neutral collective excitations of graphene in a strong perpendicular magnetic field, which can be modelled as bound electron-hole pairs. The SU(4) symme…

cond-mat.mes-hall2011★ 7 cited

Absorption of Terahertz Radiation in Ge/Si(001) Heterostructures with Quantum Dots

E. S. Zhukova, B. P. Gorshunov, V. A. Yuryev +6

The terahertz spectra of the dynamic conductivity and radiation absorption coefficient in germanium-silicon heterostructures with arrays of Ge hut clusters (quantum dots) have been…

cond-mat.mes-hall2010★ 6 cited

Symmetry Content and Observation of Charged Collective Excitations for Graphene in Strong Magnetic Fields

Andrea M. Fischer, Rudolf A. Römer, Alexander B. Dzyubenko

We show that graphene in a strong magnetic field with partially filled Landau levels sustains charged collective excitations, which are bound states of three-particle complexes. So…

cond-mat.mes-hall2009★ 10 cited

Localized Collective Excitations in Doped Graphene in Strong Magnetic Fields

A. M. Fischer, A. B. Dzyubenko, R. A. Roemer

We consider collective excitations in graphene with filled Landau levels (LL's) in the presence of an external potential due to a single charged donor D+ or acceptor A- impurity. W…

cond-mat.mes-hall2006★ 10 cited

Nonlinear optical response and exciton dephasing in quantum dots

E. A. Muljarov, R. Zimmermann

The full time-dependent four-wave mixing polarization in quantum dots is microscopically calculated, taking into account acoustic phonon-assisted transitions between different exci…