Results 111 to 120 of about 62,219 (286)

Phase‐Resolved Defect Transport Mechanisms Governing Asynchronous Ordering in a Eutectic High‐Entropy Alloy

Advanced Science, EarlyView.
Phase‐resolved experiments and atomistic simulations reveal asynchronous ordering behaviors in a eutectic high‐entropy alloy during isothermal annealing. Distinct defect transport mechanisms are identified in coexisting B2 and BCC phases, showing that vacancy and interstitial mediated diffusion governs phase‐dependent thermal stability.
Huiwen Yao, Qingshuang Ma, Jie Xiong, Jing Bai, Huijun Li, Qiuzhi Gao   +5 more
wiley   +1 more source

Atomic–molecular superlattices

Chem. Commun., 2006
In this communication we demonstrate a directly-bonded crystalline fullerene superlattice and show that the incorporation of spin-active N@C60 endohedral fullerenes is readily achieved to give an atomic-molecular hybrid spin-active superlattice material.
Watt, A, Sambrook, MR, Porfyrakis, K, Lovett, B, El Mkami, H, Smith, G, Briggs, G   +6 more
openaire   +2 more sources

Hierarchical Ordering Induced Ultrahigh Cryogenic Strength and Strain Hardening in a Ni2CoFeV Medium‐Entropy Alloy

Advanced Science, EarlyView.
A tri‐phase Ni2CoFeV medium‐entropy alloy with fcc, κ, and L12 phases achieves exceptional cryogenic strength‐ductility synergy at 77 K. It delivers a yield strength of 1.4 GPa, an ultimate tensile strength of 2.07 GPa and a tensile ductility of 28%.
Lei Gu, Wei Jiang, Qingzhong Mao, Xiang Chen, Yonghao Zhao   +4 more
wiley   +1 more source

Tunable Charge and Spin Order in PrNiO$_3$ Thin Films and Superlattices

, 2014
We have used polarized Raman scattering to probe lattice vibrations and charge ordering in 12 nm thick, epitaxially strained PrNiO$_3$ films, and in superlattices of PrNiO$_3$ with the band-insulator PrAlO$_3$.
Benckiser, E., Bluschke, M., Cristiani, G., Frano, A., Habermeier, H. U., Hepting, M., Keimer, B., Logvenov, G., Minola, M., Schierle, E., Tacon, M. Le, Weschke, E., Wu, M.   +12 more
core   +1 more source

Superlattice Architectures for Advancing Photothermal Catalysis: Mechanisms and Applications

Advanced Science, EarlyView.
This paper provides a timely overview of superlattice architectures in photothermal catalysis, with a systematic review on mechanisms at both atomic and macroscopic scales in different processes, challenges, and future opportunities. ABSTRACT Photothermal catalysis has emerged as a powerful strategy to complement photocatalysis by harnessing full ...
Yuzhao Wu, Xiaoguang Duan, Haijun Chen, Hongqi Sun, Jinqiang Zhang, Shaobin Wang   +5 more
wiley   +1 more source

Manipulating infrared photons using plasmons in transparent graphene superlattices

, 2012
Superlattices are artificial periodic nanostructures which can control the flow of electrons. Their operation typically relies on the periodic modulation of the electric potential in the direction of electron wave propagation.
A Vakil, Bhupesh Chandra, D Olego, DB Farmer, EH Hwang, EH Hwang, F Rana, Fengnian Xia, FHL Koppens, George Tulevski, H Yan, Hugen Yan, I Crassee, J Horng, J Valentine, JB Pendry, JD Joannopoulos, KF Mak, L Ju, LA Falkovsky, M Tinkham, Marcus Freitag, NJ Halas, Phaedon Avouris, RH Ritchie, RP Leavitt, RR Nair, S Bae, S Das Sarma, S Thongrattanasiri, SH Abedinpour, SJ Allen, SJ Allen, Wenjuan Zhu, X Li, Xuesong Li, Y Liu, Yanqing Wu, Z Fei, Z Li   +39 more
core   +1 more source

Large‐Scale Growth of Self‐Poled Ferroelectric Rashba Semiconductor α‐GeTe(111) Thin Films: A Crucial Step Towards Future CMOS‐Compatible Ferroelectric Spintronic Devices

Advanced Science, EarlyView.
Ferroelectric Rashba semiconductors promise ultralow‐power devices but lack industry‐quality films. This work demonstrates CMOS‐compatible fabrication of high‐quality α‐GeTe(111) films via magnetron sputtering, enabled by a 5 nm Sb2Te3 seed layer. Structural and ferroelectric analyses show robust, switchable polarization comparable to MBE films, paving
Jules Lagrave, Nicolas Bernier, Thomas Jalabert, Yoann Brûlé, Damien Térébénec, Pierre Meilleur, Hervé Roussel, Jean‐Baptiste Dory, Oussama J. Mouawad, Thibault Chommaux, Cristian Mocuta, Dominique Thiaudière, Laurent Vila, Françoise Hippert, Pierre Noé   +14 more
wiley   +1 more source

Back‐End‐of‐Line Integration of Synaptic Weights using HfO2/ZrO2 Nanolaminates

Advanced Electronic Materials
In artificial neural networks, the “synaptic weights” connecting the neurons are adjusted during the training. Beyond silicon, functionalizing the back‐end‐of‐line (BEOL) of CMOS circuits with novel materials is a key enabler for deploying neural network
Laura Bégon‐Lours, Stefan Slesazeck, Donato Francesco Falcone, Viktor Havel, Ruben Hamming‐Green, Marina Martinez Fernandez, Elisabetta Morabito, Thomas Mikolajick, Bert Jan Offrein   +8 more
doaj   +1 more source

Dynamical Diffraction of X-Rays in Superlattices

Успехи физики металлов, 2001
The review of activities is held in the field of dynamical scattering of X-rays in heteroepitaxial and acoustic superlattices. The main approaches to the description of dynamical diffraction in metallic and semiconducting superlattices are reviewed.
A. A. Dyshekov, Yu. P. Khapachev
doaj   +1 more source

Imaging Electric Polarization Switching in Multilayer Graphene

Advanced Science, EarlyView.
Domain wall sliding‐induced electric polarization switching is directly observed for the first time in multilayer graphene, enabled by a novel optical readout method. The polarization switching is realized upon application of global and local electric fields, and mechanical forces between neighboring polar domains of opposite out‐of‐plane polarizations
Zhou Zhou, Xiyao Peng, Jianfeng Bi, Jing He, Fei Xue, Jie Jiang, Huizhen Wu, Zhiwen Shi, Haoliang Qian, Toshikaze Kariyado, Sihan Zhao   +10 more
wiley   +1 more source