Concept
Momentum operator
Publications associées (55)
Interlaboratory Test Program to Determine the Precision of the R3 Test Method (ASTM C1897-20) for Measuring Reactivity of Supplementary Cementitious Materials
Karen Scrivener, Ruben Anton Snellings, Diana Londoño Zuluaga
The substitution of portland clinker by supplementary cementitious materials (SCMs) is one of the main avenues for the further decarbonization of cement production. To secure future SCM supplies, generic and performance-related test methods for SCMs are re ...
AMER SOC TESTING MATERIALS2022Effects of Degrees of Freedom on Calculating Diffusion Properties in Nanoporous Materials br
Berend Smit, Raffaela Cabriolu, Henglu Xu
If one carries out a molecular simulation ofNparticlesusing periodic boundary conditions, linear momentum is conserved,and hence, the number of degrees of freedom is set to 3N-3. Inmost programs, this number of degrees of freedom is the defaultsetting. How ...
AMER CHEMICAL SOC2022Experimental Observation and Spin Texture of Dirac Node Arcs in Tetradymite Topological Metals
Emmanouil Frantzeskakis, Ji Dai
We report the observation of a nontrivial spin texture in Dirac node arcs, i.e., novel topological objects formed when Dirac cones of massless particles extend along an open one-dimensional line in momentum space. We find that such states are present in al ...
AMER PHYSICAL SOC2021Observation of a singular Weyl point surrounded by charged nodal walls in PtGa
Oleg Yazyev, Jan Hugo Dil, Quansheng Wu, Shengnan Zhang
Constrained by the Nielsen-Ninomiya no-go theorem, in all so-far experimentally determined Weyl semimetals (WSMs) the Weyl points (WPs) always appear in pairs in the momentum space with no exception. As a consequence, Fermi arcs occur on surfaces which con ...
NATURE RESEARCH2021