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Chaotic Dirac billiard in graphene quantum dots
L. A. Ponomarenko, F. Schedin, M. I. Katsnelson +4
We report on transport characteristics of quantum dot devices etched entirely in graphene. At large sizes, they behave as conventional single-electron transistors, exhibiting perio…
Half-metallic ferromagnets: From band structure to many-body effects
M. I. Katsnelson, V. Yu. Irkhin, L. Chioncel +2
A review of new developments in theoretical and experimental electronic structure investigations of half-metallic ferromagnets (HMF) is presented. Being semiconductors for one spin…
Magnetic Correlations at Graphene Edges
Oleg V. Yazyev, M. I. Katsnelson
Magnetic zigzag edges of graphene are considered as a basis for novel spintronics devices despite the fact that no true long-range magnetic order is possible in one dimension. We s…
Midgap states in corrugated graphene: Ab-initio calculations and effective field theory
T. O. Wehling, A. V. Balatsky, A. M. Tsvelik +2
We investigate the electronic properties of corrugated graphene and show how rippling-induced pseudomagnetic fields alter graphene's low-energy electronic properties by combining f…
Giant Intrinsic Carrier Mobilities in Graphene and Its Bilayer
S. V. Morozov, K. S. Novoselov, M. I. Katsnelson +4
We have studied temperature dependences of electron transport in graphene and its bilayer and found extremely low electron-phonon scattering rates that set the fundamental limit on…
Importance of bath dynamics for decoherence in spin systems
Shengjun Yuan, Mikhail I. Katsnelson, Hans De Raedt
We study the decoherence of two coupled spins that interact with a chaotic spin-bath environment. It is shown that connectivity of spins in the bath is of crucial importance for th…