Giant tunability of superlattice excitations in chiral Cr1/3TaS2
Not Available
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND↗
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Charge-order-enhanced capacitance in semiconductor moiré superlattices
Not provided.
Materials Science↗
Simulation of Hubbard model physics in WSe2/WS2 moiré superlattices
Not provided.
Science & Technology - Other Topics↗
Water splitting with silicon p–i–n superlattices suspended in solution
Not provided.
Science & Technology - Other Topics↗
Evidence of striped electronic phases in a structurally modulated superlattice
Not provided.
Science & Technology - Other Topics↗
Structural, morphological and magnetotransport properties of composite semiconducting and semimetallic InAs/GaSb superlattice structure
(a) Cross-sectional TEM micrograph of 14 period InAs/GaSb SL, demonstrating abrupt interfaces; and (b) Shubnikov-de Haas oscillations testifying high mobility.
Hudait, M. K.↗
Defect accommodation in off-stoichiometric (SrTiO 3 ) n SrO Ruddlesden–Popper superlattices studied with positron annihilation spectroscopy
he low dielectric loss underlying the record performance of strained (SrTiO 3 ) n SrO Ruddlesden–Popper films as tunable microwave dielectrics was postulated to arise from (SrO) 2 faults accommodating local non-stoichiometric defects. Here, we explore the effect of non-stoichiometry on (SrTiO 3 ) n SrO using positron annihilation lifetime spectroscopy on a composition series of 300 nm thick n = 6 (Sr 1+δ TiO 3 ) n SrO thin films. These films show titanium-site vacancies across the stoichiometry series, with evidence that TiO x vacancy complexes dominate. Little change in defect populations is observed across the series, indicating the ability of Ruddlesden–Popper phases to accommodate ± 5% off-stoichiometry. This ability for defect accommodation is corroborated by scanning transmission electron microscopy with electron energy loss spectroscopy.
Physics↗