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Related publications (67)
Atomistic-continuum coupling of random alloys
William Curtin, Till Junge, Shankha Nag
Random alloys are multicomponent systems where the atomic type on each lattice site is independent of the atom types on any other lattice site. The fluctuations in local atomic configurations inherent to the random alloy prevents the accurate application o ...
IOP PUBLISHING LTD2019Radial-Force-Based Swirling Actuator with Surface-Permanent-Magnet Structure for Low-Speed High-Torque Applications
This paper proposes a swirling actuator that utilizes the electromagnetic radial force and a swirling gear to generate rotational torque. This actuator converts the swirling motion to the rotational motion and is suitable for low-speed high-torque applicat ...
IEEE2019First-principles-based prediction of yield strength in the RhIrPdPtNiCu high-entropy alloy
High-entropy alloys are random alloys with five or more components, often near equi-composition, that often exhibit excellent mechanical properties. Guiding the design of new materials across the wide composition space requires an ability to compute necess ...
2019Genuinely Ferroelectric Sub-1-Volt-Switchable Nanodomains in HfxZr(1-x)O2 Ultrathin Capacitors
Mihai Adrian Ionescu, Igor Stolichnov, Enrico Colla, Matteo Cavalieri
The new class of fully silicon-compatible hafnia-based ferroelectrics with high switchable polarization and good endurance and thickness scalability shows a strong promise for new generations of logic and memory devices. Among other factors, their competit ...
2018Stabilization of ferroelectric HfxZr1-xO2 films using a millisecond flash lamp annealing technique
Eamon Patrick O'Connor, Stefan Abel
We report on the stabilization of ferroelectric HfxZr1-xO2 (HZO) films crystallized using a low thermal budget millisecond flash lamp annealing technique. Utilizing a 120 s 375 degrees C preheat step combined with millisecond flash lamp pulses, ferroelectr ...
AMER INST PHYSICS2018Higher order Larmor radius corrections to guiding-centre equations and application to fast ion equilibrium distributions
Jonathan Graves, Wilfred Anthony Cooper, David Pfefferlé, Samuel Lanthaler
An improved set of guiding-centre equations, expanded to one order higher in Larmor radius than usually written for guiding-centre codes, are derived for curvilinear flux coordinates and implemented into the orbit following code VENUS-LEVIS. Aside from gre ...
Iop Publishing Ltd2017Combined in situ synchrotron micro X-ray diffraction and high-speed imaging on rapidly heated and solidified Ti-48Al under additive manufacturing conditions
Helena Van Swygenhoven, Steven Van Petegem, Christian Leinenbach
An in situ method to study the behavior of alloys during rapid heating and cooling combining laser heating with synchrotron micro X-ray diffraction and high-speed imaging is presented. Near-spherical Ti-48Al specimens were melted using a laser-based heatin ...
Pergamon-Elsevier Science Ltd2016Theory of strengthening in fcc high entropy alloys
William Curtin, Céline Varvenne
High Entropy Alloys (HEAs) are a new class of random alloys having impressive strength and toughness. Here, a mechanistic, parameter-free, and predictive theory for the temperature-, composition-, and strain-rate-dependence of the plastic yield strength of ...
Pergamon-Elsevier Science Ltd2016Self-poling of BiFeO3 thick films
Bismuth ferrite (BiFeO3) is difficult to pole because of the combination of its high coercive field and high electrical conductivity. This problem is particularly pronounced in thick films. The poling, however, must be performed to achieve a large macrosco ...
Amer Chemical Soc2016Cavity-enhanced optical Hall effect in two-dimensional free charge carrier gases detected at terahertz frequencies
Nicolas Grandjean, Jean-François Carlin
The effect of a tunable, externally coupled Fabry-Perot cavity to resonantly enhance the optical Hall effect signatures at terahertz frequencies produced by a traditional Drude-like two-dimensional electron gas is shown and discussed in this Letter. As a r ...
Optical Society of America2015