Results 61 to 70 of about 18,009 (224)

2D Nanomaterials Toward Function‐Ready Superlubricity in Advanced Microsystems

Advanced Materials, EarlyView.
A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Yushan Geng, Jun Yang, Yong Yang
wiley   +1 more source

In situ observation of stress relaxation in epitaxial graphene [PDF]

, 2009
Upon cooling, branched line defects develop in epitaxial graphene grown at high temperature on Pt(111) and Ir(111). Using atomically resolved scanning tunneling microscopy we demonstrate that these defects are wrinkles in the graphene layer, i.e. stripes
, Alpha T N'Diaye, Antonio J Martínez-Galera, Bene Poelsema, Carsten Busse, Coraux J, Dirk Wall, Frank-J Meyer zu Heringdorf, Fujita D, Hattab H Meyer zu Heringdorf N'Diaye A T van Gastel R Coraux J Wall D Horn-von Hoegen M Poelsema B Busse C Michely T, Hichem Hattab, Jiang J-W, Johann Coraux, José M Gómez-Rodríguez, Loginova E, Michael Horn-von Hoegen, N'Diaye A T, N'Diaye A T, Raoul van Gastel, Sun G F, Thomas Michely   +20 more
core   +5 more sources

Lattice Misfit Strain as Origin for Biquadratic Interlayer Coupling

Acta Physica Polonica A, 1996
The direct observations of some MBE grown superlattices show large interfacial undulations, which is attributed to the elastic relaxation of tensile . layers. Assuming that the interface lateral lattice deformation, due to ionic radii misfit, is given by the periodic solution of the Frenkel-Kontorova model, we calculate the magnetoelastic contribution ...
R. Jaroszewicz, Z. Bąk, W. Gruhn
openaire   +1 more source

4D‐Printed Spin Crossover Metamaterials with Giant Programmable Positive or Negative Thermal Expansion

Advanced Materials, EarlyView.
Spin crossover composite filaments are implemented for the rational design of 4D‐printed mechanical metamaterials. The obtained bi‐material structures guided by a theoretical analysis based on analytical calculations and Finite Element Analysis simulations exhibit giant programmable positive or negative deformation with coefficients of thermal ...
Adelais Trapali, Yuteng Zhang, Seyed Ehsan Alavi, Nagham Mawassy, Raja Zulkarnain, Gábor Molnár, Lionel Salmon, Azzedine Bousseksou   +7 more
wiley   +1 more source

V-stabilized γ′′ phase: a new pathway to enhanced intermediate-temperature ductility in NiCoCr-based multi-component alloys

Materials Research Letters
This work proposes a new design strategy for overcoming the strength-ductility trade-off of γ′′-strengthened multi-component alloys at intermediate-temperatures.
Yunwei Pan, Anping Dong, Yang Zhou
doaj   +1 more source

Strong Tc dependence for strained, epitaxial Ba(Fe1-xCox)2As2 thin films

, 2009
Ba(Fe1-xCox)2As2 superconducting thin films have been grown on SrTiO3, (La,Sr)(Al,Ta)O3, LaAlO3 and YAlO3 (YAO) single crystal substrates by pulsed laser deposition. All the films, except on YAO, have been grown epitaxially without buffer layers.
Haenisch, J., Haindl, S., Holzapfel, B., Huehne, R., Iida, K., Kidszun, M., Kurth, F., Schultz, L., Werner, J.   +8 more
core   +1 more source

Functional renormalization-group approach to the Pokrovsky-Talapov model via modified massive Thirring fermion model [PDF]

, 2017
A possibility of the topological Kosterlitz-Thouless~(KT) transition in the Pokrovsky-Talapov~(PT) model is investigated by using the functional renormalization-group (RG) approach by Wetterich.
Kishine, Jun-ichiro, Nosov, P. A., Ovchinnikov, A. S., Proskurin, I.   +3 more
core   +1 more source

Strain‐Driven Surface Reconstruction During the Alkaline Oxygen Evolution Reaction: a Model Thin‐Film Study

Advanced Materials, EarlyView.
ABSTRACT Dynamic surface reconstruction critically governs the performance and durability of oxide‐based electrocatalysts for the oxygen evolution reaction (OER), yet controlling this process under operating conditions remains challenging. Here, we demonstrate that lattice strain regulates the extent of surface reconstruction in perovskite oxides by ...
Yong Beom Kim, Jeong Jin Lee, Jeongah Lee, Yeongtaek Hong, San Kwak, WooChul Jung   +5 more
wiley   +1 more source

Research Updates: Epitaxial strain relaxation and associated interfacial reconstructions: The driving force for creating new structures with integrated functionality

APL Materials, 2013
Here, we report detailed strain mapping analysis at heterointerfaces of a new multiferroic complex oxide Bi3Fe2Mn2Ox(BFMO322) supercell and related layered structures.
Yuanyuan Zhu, Aiping Chen, Honghui Zhou, Wenrui Zhang, Jagdish Narayan, Judith L. MacManus-Driscoll, Quanxi Jia, Haiyan Wang   +7 more
doaj   +1 more source

Kinetic Monte Carlo simulation of faceted islands in heteroepitaxy using multi-state lattice model [PDF]

, 2009
A solid-on-solid model is generalized to study the formation of Ge pyramid islands bounded by (105) facets on Si(100) substrates in two dimensions. Each atomic column is not only characterized by the local surface height but also by two deformation state
Chi-Hang Lam, V. A. Shchukin
core   +2 more sources