Debye Temperature and Quantum Diffusion of Hydrogen in Body-Centered Cubic Metals
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.1c05902
Abstract: Diffusion of deuterium in potassium is studied herein. Mass transfer is controlled predominantly by the mechanism of overbarrier atomic jumps at temperatures 120–260 K and by the tunneling mechanism at 90–120 K. These results together… read more here.
Keywords: diffusion; body centered; quantum diffusion; centered cubic ... See more keywords
Quantum diffusion of massive Dirac fermions induced by symmetry breaking
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.075427
Abstract: We show that when a two-dimensional $(2\mathrm{D})$ Dirac fermion moves in disordered environments, the weak time-reversal symmetry breaking by a small mass gives rise to the diffusive wave propagation, i.e., that the wave-packet spread obeys… read more here.
Keywords: quantum diffusion; symmetry breaking; symmetry; massive dirac ... See more keywords
Noise, delocalization, and quantum diffusion in one-dimensional tight-binding models.
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review E"
DOI: 10.1103/physreve.95.022216
Abstract: As an unusual type of anomalous diffusion behavior, namely (transient) superballistic transport, has been experimentally observed recently, but it is not yet well understood. In this paper, we investigate the white noise effect (in the… read more here.
Keywords: tight binding; diffusion one; diffusion; quantum diffusion ... See more keywords