Doping-induced Polar Defects Improve the Electrocaloric Performance of Ba0.9Sr0.1Hf0.1Ti0.9O3
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review Applied"
DOI: 10.1103/physrevapplied.16.014033
Abstract: In materials science, intentional doping has been widely used to improve the properties of a variety of materials. However, such an approach is not yet exploited in the fast-growing field of electrocaloric materials, which represent… read more here.
Keywords: performance; mathrm mathrm; field; ensuremath delta ... See more keywords
Finite-size anomalies of the Drude weight: Role of symmetries and ensembles
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DOI: 10.1103/physrevb.96.245117
Abstract: We revisit the numerical problem of computing the high temperature spin stiffness, or Drude weight, $D$ of the spin-$1/2$ $XXZ$ chain using exact diagonalization to systematically analyze its dependence on system symmetries and ensemble. Within… read more here.
Keywords: drude weight; ensuremath; ensuremath delta; mathrm ensuremath ... See more keywords
Quantum field theoretical description of the Casimir effect between two real graphene sheets and thermodynamics
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.016006
Abstract: The analytic asymptotic expressions for the Casimir free energy and entropy for two parallel graphene sheets possessing nonzero energy gap $\mathrm{\ensuremath{\Delta}}$ and chemical potential $\ensuremath{\mu}$ are derived at arbitrarily low temperature. Graphene is described in… read more here.
Keywords: mathrm ensuremath; ensuremath; ensuremath delta; delta ensuremath ... See more keywords