Results 191 to 200 of about 50,134 (248)
Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film
Advanced Functional Materials, EarlyView.ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu +7 more
wiley +1 more source
Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies
Advanced Functional Materials, EarlyView.The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
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Advanced Functional Materials, EarlyView.We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang +14 more
wiley +1 more source
Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides
Advanced Functional Materials, EarlyView.A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri +11 more
wiley +1 more source
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Proceedings of the 3rd Innovations in Theoretical Computer Science Conference, 2012
We initiate a principled study of graph densification. Given a graph G the goal of graph densification is to come up with another graph H that has significantly more edges than G but nevertheless approximates G well with respect to some set of test functions.
Moritz Hardt +2 more
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We initiate a principled study of graph densification. Given a graph G the goal of graph densification is to come up with another graph H that has significantly more edges than G but nevertheless approximates G well with respect to some set of test functions.
Moritz Hardt +2 more
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Reaction Densification of α′‐SiAION: II, Densification Behavior
Journal of the American Ceramic Society, 1995Reaction hot‐pressing behavior of α‐Si 3 N 4 , Al 2 O 3 , A1N, and M 2 O Z powder mixtures (M
Menon, Mohan, Chen, I-Wei
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Journal of The Electrochemical Society, 1981
Semi‐insulating polycrystalline silicon (SIPOS) can be used as part of a passivation scheme on semiconductor devices. During processing the film experiences temperatures several hundred degrees higher than the SIPOS deposition temperature of 640°C. We have investigated the effect of high temperature anneals on the physical properties of SIPOS films ...
H. R. Maxwell, W. R. Knolle
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Semi‐insulating polycrystalline silicon (SIPOS) can be used as part of a passivation scheme on semiconductor devices. During processing the film experiences temperatures several hundred degrees higher than the SIPOS deposition temperature of 640°C. We have investigated the effect of high temperature anneals on the physical properties of SIPOS films ...
H. R. Maxwell, W. R. Knolle
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Ferroelectrics, 1981
Abstract The reaction sequence of PZT formation from the mixture of PbO-ZrO2-TiO2 has been extensively studied1-3. However, there have been no studies on the morphological changes occurring during the calcination process. The dependence of the characteristics and properties of the ceramic on the calcining conditions though has been well noted4–5, no ...
S. Venkataramani, J. V. Biggers
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Abstract The reaction sequence of PZT formation from the mixture of PbO-ZrO2-TiO2 has been extensively studied1-3. However, there have been no studies on the morphological changes occurring during the calcination process. The dependence of the characteristics and properties of the ceramic on the calcining conditions though has been well noted4–5, no ...
S. Venkataramani, J. V. Biggers
openaire +1 more source