Showing 2011 · cond-mat.mes-hallShow all

9 papers · 2 filters

cond-mat.mes-hall2011★ 137 cited

Electronic Pumping of Quasiequilibrium Bose-Einstein Condensed Magnons

Scott A. Bender, Rembert A. Duine, Yaroslav Tserkovnyak

We theoretically investigate spin transfer between a system of quasiequilibrated Bose-Einstein condensed magnons in an insulator in direct contact with a conductor. While charge tr…

cond-mat.mes-hall2011★ 114 cited

Quantum confined electronic states in atomically well-defined graphene nanostructures

Sampsa Hämäläinen, Zhixiang Sun, Mark P. Boneschanscher +5

Despite the enormous interest in the properties of graphene and the potential of graphene nanostructures in electronic applications, the study of quantum confined states in atomica…

cond-mat.mes-hall2011

Multiband quasiparticle interference in the topological insulator Cu_(x)Bi_(2)Te_(3)

E. van Heumen, G. A. R. van Dalum, J. Kaas +6

We present angle resolved photoemission experiments and scanning tunneling spectroscopy results on the doped topological insulator Cu0.2Bi2Te3. Quasi-particle interference (QPI) me…

cond-mat.mes-hall2011★ 45 cited

Spin-transfer mechanism for magnon-drag thermopower

M. E. Lucassen, C. H. Wong, R. A. Duine +1

We point out a relation between the dissipative spin-transfer-torque parameter and the contribution of magnon drag to the thermoelectric power in conducting ferromagnets. Using…

cond-mat.mes-hall2011★ 14 cited

Spin- and band-ferromagnetism in trilayer graphene

Ralph van Gelderen, Lih-King Lim, C. Morais Smith

We study the ground state properties of an ABA-stacked trilayer graphene. The low energy band structure can be described by a combination of both a linear and a quadratic particle-…

cond-mat.mes-hall2011★ 41 cited

Probing the topological exciton condensate via Coulomb drag

M. P. Mink, H. T. C. Stoof, R. A. Duine +2

The onset of exciton condensation in a topological insulator thin film was recently predicted. We calculate the critical temperature for this transition, taking into account screen…

cond-mat.mes-hall2011★ 36 cited

The Influence of Remote Bands on Exciton Condensation in Double-Layer Graphene

M. P. Mink, A. H. MacDonald, H. T. C. Stoof +1

We examine the influence of remote bands on the tendency toward exciton condensation in a system consisting of two parallel graphene layers with negligible interlayer tunneling. We…

cond-mat.mes-hall2011★ 50 cited

Spin-density-wave instability in graphene doped near the van Hove singularity

D. Makogon, R. van Gelderen, R. Roldán +1

We study the instability of the metallic state towards the formation of a new ground state in graphene doped near the van Hove singularity. The system is described by the Hubbard m…

cond-mat.mes-hall2011★ 55 cited

Topological phase transitions between chiral and helical spin textures in a lattice with spin-orbit coupling and a magnetic field

N. Goldman, W. Beugeling, C. Morais Smith

We consider the combined effects of large spin-orbit couplings and a perpendicular magnetic field in a 2D honeycomb fermionic lattice. This system provides an elegant setup to gene…