Results 101 to 110 of about 62,943 (302)
Advanced ScienceThe coherence of hole spin qubits in germanium planar heterostructures is limited by the hyperfine coupling to the nuclear spin bath due to 29Si and 73Ge isotopes.
Patrick Daoust +11 more
doaj +1 more source
Low-threshold, mirrorless emission at 981nm in an Yb,Gd,Lu:KYW inverted rib waveguide laser
In this work, we demonstrate 3-level laser operation in a Yb,Gd,Lu:KYW waveguide laser fabricated by combination of liquid phase epitaxy and Ar+ ion beam milling. Laser emission was observed at 981 nm with an absorbed threshold power of 23 mW and a slope
Aguiló, M. +6 more
core +1 more source
Probing Type‐II Multiferroicity in Monolayer NiBr2
Advanced Science, EarlyView.Type‐II multiferroicity is demonstrated in monolayer NiBr2. Scanning tunneling microscopy resolves ferroelectric polarization arising from non‐collinear magnetic order, and reciprocal control with electric and magnetic fields confirms intrinsic magnetoelectric coupling.
Aleš Cahlík +7 more
wiley +1 more source
Uranium Doped Gallium Nitride Epitaxial Thin Films
Advanced Electronic MaterialsGallium nitride (GaN) is near ubiquitous in modern day technologies, forming the backbone of solid‐state lighting and high‐power electronics. Engineering the physical properties of GaN has been investigated to some degree by the incorporation or doping ...
J. Pierce Fix +10 more
doaj +1 more source
Orientation‐Engineered Insulator‐Metal Transition in Vanadium Dioxide
Advanced Science, EarlyView.Crystallographic orientation engineering in VO2/TiO2 heterostructures enables tunable insulator‐metal transitions. The high‐Miller‐index (102) orientation breaks in‐plane mirror symmetry, inducing anisotropic transport, while its inclined oxygen channels accelerate protonation kinetics.
Xuanchi Zhou +4 more
wiley +1 more source
Strain Tuning the Kinetics of Topotactic Phase Transitions in Epitaxial Oxide Films
Small ScienceWe report the kinetics of the topotactic brownmillerite–perovskite phase transition in epitaxial strontium cobaltite (SrCoOx) thin films. Our findings reveal asymmetric switching kinetics between the oxygen‐deficient SrCoO2.5 and oxygen‐rich SrCoO3 ...
Tadesse Billo Reta +17 more
doaj +1 more source
Epitaxy-through-holes process for epitaxy wrap-through solar cells
, 2012 S.2565-2569The Epitaxy Wrap-Through (EpiWT) cell is a rear contact version of the Epitaxial Wafer-Equivalent cell which is a crystalline silicon thin-film solar cell developed at Fraunhofer ISE.
Reber, S., Brinkmann, N., Mitchell, E.J.
core +1 more source
Advanced Science, EarlyView.Epitaxial integration of a C1N1 phase onto KPHI creates a dyadic charge‐transfer nanostructure with strong interfacial electronic coupling. This architecture drives directional electron transfer from KPHI to C1N1, enabling efficient cocatalyst‐free solar H2O2 production.
Haijian Tong +3 more
wiley +1 more source
Formation of MOS-transistors with isolation of active elements by oxiden porous silicon [PDF]
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2009 The superthin functional layers of MOS-transistors require qualitative isolation of active elements. The new method of formation of epitaksial structures for technology «silicon - on-isolator» is offered on the basis of porous silicon.
Novosyadlyi S. P., Vivcharuk V. M.
doaj
Advanced Science, EarlyView.As CMOS technology approaches fundamental energy limits, new paradigms for low‐power information processing are required. Magnetic systems are attractive for their spin transport, yet current‐induced magnetization control is energy inefficient. Multiferroic heterostructures enable energy‐efficient electric field manipulation of magnetism.
Donghyeon Lee +3 more
wiley +1 more source