Results 121 to 130 of about 360,804 (296)

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

Hybrid Quantum Dot-2D Electron Gas Devices for Coherent Optoelectronics

, 2014
We present an inverted GaAs 2D electron gas with self-assembled InAs quantum dots in close proximity, with the goal of combining quantum transport with quantum optics experiments. We have grown and characterized several wafers -- using transport, AFM and
Badolato, A., Dettwiler, F., Fallahi, P., Reiger, E., Scholz, D., Schuh, D., Wegscheider, W., Zumbühl, D. M.   +7 more
core  

Dynamics of interacting transport qubits

, 2012
We investigate the electronic transport through two parallel double quantum dots coupled both capacitively and via a perpendicularly aligned charge qubit.
Christian Nietner, Christina Pöltl, Gernot Schaller, H. P. Breuer, L. P. Kouwenhoven, Tobias Brandes   +5 more
core   +1 more source

Magnetic Force Microscopy Signatures of Higher‐Order Skyrmions and Antiskyrmions

Advanced Functional Materials, EarlyView.
Magnetic force microscopy operated under vacuum conditions enables the qualitative identification of higher‐order skyrmions and antiskyrmions in Co/Ni multilayers at room temperature. Distinct stray‐field contrast signatures arise from vertical Bloch lines and complex domain‐wall configurations.
Sabri Koraltan, Joe Sunny, Tamer Karaman, Reshma Peremadathil‐Pradeep, Emily Darwin, Felix Büttner, Dieter Suess, Hans Josef Hug, Manfred Albrecht   +8 more
wiley   +1 more source

Stacking‐Engineered Magnonic Topology and Transport in Honeycomb Homobilayers

Advanced Functional Materials, EarlyView.
ABSTRACT Topological magnons have emerged as a promising platform for dissipationless bosonic transport. However, a straightforward and effective strategy to engineer such topological states in real materials has yet to be fully realized. Here, a general scheme for controlling magnonic topological states via stacking engineering in van der Waals ...
Xiaoran Feng, Yingxi Bai, Bo Yuan, Ying Dai, Baibiao Huang, Chengwang Niu, Xiaotian Wang   +6 more
wiley   +1 more source

Luminescent quantum dots encapsulated by zwitterionic amphi philic polymer: surface charge-dependent interaction with cancer cells

Журнал Белорусского государственного университета: Химия, 2018
Here, we prepared water-soluble highly luminescent CdSe/ZnS quantum dots having different surface charge and examined how zeta potential of quantum dots affected their uptake by cancer cells.
Elena A. Petrova, Tatiana I. Terpinskaya, Mikhail V. Artemyev, Aleksandra A. Fedosyuk, Aliaksandra V. Radchanka, Artsiom V. Antanovich, Anatol V. Prudnikau   +6 more
doaj  

The effect of a hybrid coating of porous silicon and WS₂ and MoS₂ quantum dots on the electrical characteristics of photosensitive structures

Физика волновых процессов и радиотехнические системы
Background. This paper examines the effect of the hybrid coating of quantum dots and porous silicon on the volt-ampere characteristic of photosensitive structures.
Natalia A. Poluektova, Daria A. Shishkina, Danil P. Grigoriev   +2 more
doaj   +1 more source

Ultrastable Photoactive Halide Perovskite Nanocrystal‐Sensitized SnO2 Nanorods for Room‐Temperature NO2 Detection

Advanced Functional Materials, EarlyView.
ABSTRACT Metal oxide (MOx)‐based NO2 gas sensors typically require high temperatures or ultraviolet light, limiting their practical use. To enable visible‐light activation at room temperature, efficient and stable photosensitizers should be integrated with nanostructured MOx hosts.
Yeonji Yuk, Dokyum Kim, Jun‐Cheol Park, Yoonsung Jung, Inhyeok Oh, Donghyeon Lee, Yejoon Kim, Ji‐Eun Yeo, Young Min Song, Chang‐Lyoul Lee, Sanghan Lee   +10 more
wiley   +1 more source

Magnetism of graphene quantum dots

npj Quantum Materials, 2017
Condensed matter physics: intrinsic magnetism emerges in graphene quantum dots A local magetic moment emerges in nanoscale high purity graphene quantum dots, probably resulting from edge passivation.
Yuanyuan Sun, Yongping Zheng, Hongzhe Pan, Jie Chen, Weili Zhang, Lin Fu, Kaiyu Zhang, Nujiang Tang, Youwei Du   +8 more
doaj   +1 more source

Electronic Green's functions in a T-shaped multi-quantum dot system

, 2011
We developed a set of equations to calculate the electronic Green's functions in a T-shaped multi-quantum dot system using the equation of motion method.
Aguado, Anderson, Brown, Bulla, Coleman, Cronenwett, Fano, G. Pal, Guclu, Han, Hewson, Hewson, I. Ţifrea, Kaminski, Kastner, Lacroix, M. Crisan, Paaske, Parcollet, Qi, Swirkowicz, Tanaka, Tenamoto, van der Wiel, van Roermund, Wingreen, Wu, Zimbovskaya   +27 more
core   +1 more source