197 citations · 471 across the 17 of their papers we have counts for
7 papers · 1 filter
Spatially-indirect Exciton Condensate Phases in Double Bilayer Graphene
Jung-Jung Su, Allan H. MacDonald
We present a theory of spatially indirect exciton condensate states in systems composed of a pair of electrically isolated Bernal graphene bilayers. The ground state phase diagram…
Comment on "Giant Plasticity of a Quantum Crystal"
C. Zhou, C. Reichhardt, M. J. Graf +3
In their Letter, Haziot et al. [Phys. Rev. Lett. 110 (2013) 035301] report a novel phenomenon of giant plasticity for hcp Helium-4 quantum crystals. They assert that Helium-4 exhib…
Plastic response by dislocation glide in solid helium under dc strain rate loading
Caizhi Zhou, Jung-Jung Su, Matthias J. Graf +3
We develop a model for the gliding of dislocations and plasticity in solid He-4. This model takes into account the Peierls barrier, multiplication and interaction of dislocations,…
Defects and glassy dynamics in solid He-4: Perspectives and current status
A. V. Balatsky, M. J. Graf, Z. Nussinov +1
We review the anomalous behavior of solid He-4 at low temperatures with particular attention to the role of structural defects present in solid. The discussion centers around the p…
Dislocation induced anomalous softening of solid helium
Caizhi Zhou, Jung-Jung Su, Matthias J. Graf +3
The classical motion of gliding dislocation lines in slip planes of crystalline solid helium leads to plastic deformation even at temperatures far below the Debye temperature and c…
The role of glass dynamics in the anomaly of the dielectric function of solid helium
Jung-Jung Su, Matthias J. Graf, Alexander V. Balatsky
We propose that acousto-optical coupling of the electric field to strain fields around defects in disordered He is causing an increase of the dielectric function with decreasin…
The glassy response of double torsion oscillators in solid Helium-4
Matthias J. Graf, Jung-Jung Su, Hari P. Dahal +2
Single and double torsion oscillators have been used successfully to measure the anomalous change in resonant frequency and accompanying dissipation in solid He-4. We present a gla…