Search Results - "Salje, Ekhard K H"

Avalanche criticality during ferroelectric/ferroelastic switching by Casals, Blai, Nataf, Guillaume F., Salje, Ekhard K. H.

“…Field induced domain wall displacements define ferroelectric/ferroelastic hysteresis loops, which are at the core of piezoelectric, magnetoelectric and…”
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Multiferroic Domain Boundaries as Active Memory Devices: Trajectories Towards Domain Boundary Engineering by Salje, Ekhard K. H.

“…Twin boundaries in ferroelastics and curved interfaces between crystalline and amorphous zircon can, in principle, act as multiferroic structural elements and…”
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Statistical similarity between the compression of a porous material and earthquakes by Baró, Jordi, Corral, Álvaro, Illa, Xavier, Planes, Antoni, Salje, Ekhard K H, Schranz, Wilfried, Soto-Parra, Daniel E, Vives, Eduard

“…It has long been stated that there are profound analogies between fracture experiments and earthquakes; however, few works attempt a complete characterization…”
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Crackling noise microscopy by Nguyen, Cam-Phu Thi, Schoenherr, Peggy, Salje, Ekhard K. H., Seidel, Jan

“…Crackling noise is a scale-invariant phenomenon found in various driven nonlinear dynamical material systems as a response to external stimuli such as force or…”
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Ferroelectric switching in ferroelastic materials with rough surfaces by Lu, Guangming, Li, Suzhi, Ding, Xiangdong, Sun, Jun, Salje, Ekhard K. H.

“…Electric switching of non-polar bulk crystals is shown to occur when domain walls are polar in ferroelastic materials and when rough surfaces with steps on an…”
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The duration-energy-size enigma for acoustic emission by Casals, Blai, Dahmen, Karin A., Gou, Boyuan, Rooke, Spencer, Salje, Ekhard K. H.

“…Acoustic emission (AE) measurements of avalanches in different systems, such as domain movements in ferroics or the collapse of voids in porous materials,…”
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Crackling noise during failure of alumina under compression: the effect of porosity by Castillo-Villa, Pedro O, Baró, Jordi, Planes, Antoni, Salje, Ekhard K H, Sellappan, Pathikumar, Kriven, Waltraud M, Vives, Eduard

“…We study acoustic emission avalanches during the process of failure of porous alumina samples (Al2O3) under compression. Specimens with different porosities…”
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Interface Driven Pseudo-Elasticity in a-Fe Nanowires by Yang, Yang, Li, Suzhi, Ding, Xiangdong, Sun, Jun, Salje, Ekhard K. H.

“…Molecular dynamics simulations of bent [100] α‐Fe nanowires show the nucleation of twins and nanoscale interfaces that lead to pseudo‐elasticity during…”
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Twisting of a Pristine α-Fe Nanowire: From Wild Dislocation Avalanches to Mild Local Amorphization by Yang, Yang, Ding, Xiangdong, Sun, Jun, Salje, Ekhard K. H.

“…The torsion of pristine α-Fe nanowires was studied by molecular dynamics simulations. Torsion-induced plastic deformation in pristine nanowires is divided into…”
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Unexpected Controllable Pair-Structure in Ferroelectric Nanodomains by Ivry, Yachin, Chu, Daping, Scott, James F, Salje, Ekhard K. H, Durkan, Colm

“…The imminent inability of silicon-based memory devices to satisfy Moore’s Law is approaching rapidly. Controllable nanodomains of ferroic systems are…”
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Direct Observation of Ferrielectricity at Ferroelastic Domain Boundaries in CaTiO3 by Electron Microscopy by Van Aert, Sandra, Turner, Stuart, Delville, Rémi, Schryvers, Dominique, Van Tendeloo, Gustaaf, Salje, Ekhard K. H.

“…High‐resolution aberration‐corrected transmission electron microscopy aided by statistical parameter estimation theory is used to quantify localized…”
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Failure mechanism in porous materials under compression: crackling noise in mesoporous SiO2 by Salje, Ekhard K.H., Soto-Parra, Daniel Enrique, Planes, Antoni, Vives, Eduard, Reinecker, Marius, Schranz, Wilfried

“…The failure mechanism of porous materials under uniaxial stress has been investigated experimentally. Microporous SiO 2 , Vycor, has been subjected to slowly…”
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Line-broadening effects in the powder infrared spectrum of apatite by Balan, Etienne, Delattre, Simon, Roche, Damien, Segalen, Loïc, Morin, Guillaume, Guillaumet, Maxime, Blanchard, Marc, Lazzeri, Michele, Brouder, Christian, Salje, Ekhard K. H.

“…The crystallinity of natural and synthetic apatite samples is often determined from the broadening of ν 4 PO 4 infrared absorption bands. However, various…”
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Acoustic Emission from Porous Collapse and Moving Dislocations in Granular Mg-Ho Alloys under Compression and Tension by Chen, Yan, Ding, Xiangdong, Fang, Daqing, Sun, Jun, Salje, Ekhard K. H.

“…We identified heterogeneous Mg-Ho alloys as an ideal material to measure the most extensive acoustic emission spectra available. Mg-Ho alloys are porous and…”
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Periodicity-Doubling Cascades: Direct Observation in Ferroelastic Materials by Everhardt, Arnoud S, Damerio, Silvia, Zorn, Jacob A, Zhou, Silang, Domingo, Neus, Catalan, Gustau, Salje, Ekhard K H, Chen, Long-Qing, Noheda, Beatriz

“…Very sensitive responses to external forces are found near phase transitions. However, transition dynamics and preequilibrium phenomena are difficult to detect…”
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Experimental Evidence of Accelerated Seismic Release without Critical Failure in Acoustic Emissions of Compressed Nanoporous Materials by Baró, Jordi, Dahmen, Karin A, Davidsen, Jörn, Planes, Antoni, Castillo, Pedro O, Nataf, Guillaume F, Salje, Ekhard K H, Vives, Eduard

“…The total energy of acoustic emission (AE) events in externally stressed materials diverges when approaching macroscopic failure. Numerical and conceptual…”
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Evidence of the Monopolar‐Dipolar Crossover Regime: A Multiscale Study of Ferroelastic Domains by In Situ Microscopy Techniques by Scott, John J. R., Lu, Guangming, Rodriguez, Brian J., MacLaren, Ian, Salje, Ekhard K.H., Arredondo, Miryam

“…The elastic interaction between kinks (and antikinks) within domain walls plays a pivotal role in shaping the domain structure, and their dynamics. In bulk…”
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Rotatable precipitates change the scale-free to scale dependent statistics in compressed Ti nano-pillars by Pan, Yan, Wu, Haijun, Wang, Xiaofei, Sun, Qiaoyan, Xiao, Lin, Ding, Xiangdong, Sun, Jun, Salje, Ekhard K. H.

“…Compressed nano-pillars crackle from moving dislocations, which reduces plastic stability. Crackling noise is characterized by stress drops or strain bursts,…”
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Acoustic emission of kidney stones: a medical adaptation of statistical breakdown mechanisms by Eckstein, Jack T., Wiseman, Oliver J., Carpenter, Michael A., Salje, Ekhard K. H.

“…Kidney stones have a prevalence rate of > 10% in some countries. There has been a significant increase in surgery to treat kidney stones over the last 10…”
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Robust templates for domain boundary engineering in ErMnO3 by Salje, Ekhard K H

“…Emerging properties of domain boundaries define the emerging field of domain boundary engineering. For many applications, the domain boundary acts as template…”
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