Results 51 to 60 of about 15,314,211 (324)

In-situ observation of dislocation dynamics near heterostructured interfaces [PDF]

, 2019
There has been a long-standing controversy on how dislocations interact with interfaces. Here we report in-situ observations that in a Cu-brass heterostructured TEM film Frank-Read sources are the primary dislocation sources. They were dynamically formed
Han XD, Sha XC, Goeken M, Zhu YT, Huang CX, Ma XL, Ameyama K, 武晓雷, Xiao LR, Zhou H, Hoeppel HW   +10 more
core   +2 more sources

2D materials and van der Waals heterostructures [PDF]

Science, 2016
BACKGROUND Materials by design is an appealing idea that is very hard to realize in practice. Combining the best of different ingredients in one ultimate material is a task for which we currently have no general solution. However, we do have some successful examples to draw upon: Composite materials and III-V heterostructures ...
Novoselov, K. S., Mishchenko, A., Carvalho, A., Castro Neto, A. H.   +3 more
openaire   +3 more sources

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source

Heterostructure Engineering of 2D Superlattice Materials for Electrocatalysis

Advanced Science, 2022
AbstractExploring low‐cost and high‐efficient electrocatalyst is an exigent task in developing novel sustainable energy conversion systems, such as fuel cells and electrocatalytic fuel generations. 2D materials, specifically 2D superlattice materials focused here, featured highly accessible active areas, high density of active sites, and high ...
Zhen Zhang, Peizhi Liu, Yanhui Song, Ying Hou, Bingshe Xu, Ting Liao, Haixia Zhang, Junjie Guo, Ziqi Sun   +8 more
openaire   +4 more sources

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

2D materials and Van Der Waals heterostructures [PDF]

, 2021
In this thesis we have studied several 2D materials as well as a few van der Waals heterostructures. The most famous and probably also most promising 2D material is graphene. Graphene occurs in Nature and the material is stable against ambient conditions, which is extremely beneficial for technological applications. Unfortunately, graphene also has one
openaire   +2 more sources

Enhanced Thermoelectric Properties of Cobalt Silicide-Silicon Heterostructured Nanowires

, 2021
Silicon nanowires (SiNWs) have attracted attention as promising high efficiency thermoelectric materials by significantly improving the thermoelectric efficiency of silicon. Here, we have fabricated cobalt silicide/silicon heterostructure on both ends of
SEO, MYUNGHAE, CHO, HYEONSU, MEYYAPPAN, MEYYA, LEE, SEUNGHO, BAEK, CHANG KI, YOON, SOL, YOO, HYEONGSEOK, KONG, BYOUNG DON   +7 more
core   +1 more source

Chemical State Detection and Charge Transfer in Complex Oxide Heterostructures via In Situ Auger Electron Spectroscopy

Advanced Functional Materials, EarlyView.
In situ Auger Electron Spectroscopy resolves oxidation states with high fidelity during the pulsed laser deposition of multivalent perovskite manganate and vanadate heterostructures. The chemical‐state signature is carried by the valence‐electron population of the transition‐metal cation, read out through the relative intensities of Auger fine ...
Harish Kumarasubramanian, Jayakanth Ravichandran   +1 more
wiley   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Charge transfer in heterostructures of strongly correlated materials [PDF]

Journal of Physics: Condensed Matter, 2008
In this manuscript, recent theoretical investigations by the authors in the area of oxide multilayers are briefly reviewed. The calculations were carried out using model Hamiltonians and a variety of non-perturbative techniques. Moreover, new results are also included here. They correspond to the generation of a metallic state by mixing insulators in a
Gonzalez, I., Okamoto, S., Yunoki, S., Moreo, A., Dagotto, E.   +4 more
openaire   +3 more sources