نتایج جستجو برای: tbg
تعداد نتایج: 390 فیلتر نتایج به سال:
We show that the entire continuous model of twisted bilayer graphene (TBG) (and not just two active bands) with particle-hole symmetry is anomalous and hence incompatible a lattice model. Previous works, e.g., [Phys. Rev. Lett. 123, 036401], X 9, 021013], B 99, 195455], others [1-4] found flat bands in TBG possess fragile topology protected by $C_{2z}T$ symmetry. 036401] also pointed out an app...
We estimated the pre-intervention prevalence of Trypanosoma brucei gambiense (Tbg) trypanosomiasis using the lot quality assurance sampling (LQAS) methods in 14 parishes of Terego County in northern Uganda. A total of 826 participants were included in the survey sample in 1996. The prevalence of laboratory confirmed Tbg trypanosomiasis adjusted for parish population sizes was 2.2% (95% confiden...
THYROXINE is reversibly bound in the plasma to three proteins: thyroxine-binding globulin (TBG), thyroxine-binding prealbumin (TBPA), and albumin. Changes in the binding capacities of TBG and TBPA in patients with thyroid disease have been reported previously (1, 2). Since starch-gel electrophoresis of serums of patients with thyrotoxicosis indicated a marked decrease in density of the stain in...
Reverse triiodothyronine (rT3), triiodothyronine (T3), thyroxine (T4), thyroxine binding globulin (TBG), and thyrotrophin (TSH) were measured in sera from placental cord blood in an unselected series of 272 deliveries. In this series the concentrations of rT3 (mean 3.33 nmol/l, 95% confidence limits 1.6--7.0 nmol/l), were log normally distributed and did not overlap the adult normal range (0.11...
We report a local minimum in thermal conductivity twisted bilayer graphene (TBG) at the angle of 1.08°, which corresponds to ‘magic angle’ transition several other reported properties. Within supercell moiré lattice, different stacking modes generate phonon scattering sites reduce TBG. The magic arises from competition between delocalization atomic vibrational amplitudes and stresses on one han...
The Bistritzer–MacDonald (BM) model, introduced by Bistritzer and MacDonald [Proc. Natl. Acad. Sci. U. S. A. 108, 12233–12237 (2011); arXiv:1009.4203], attempts to capture electronic properties of twisted bilayer graphene (TBG), even at incommensurate twist angles, using an effective periodic model over the moiré pattern. Starting from a tight-binding we identify regime where BM emerges as dyna...
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