Search Results - "WHATMORE, Roger W"

Injection and controlled motion of conducting domain walls in improper ferroelectric Cu-Cl boracite by McQuaid, Raymond G.P., Campbell, Michael P., Whatmore, Roger W., Kumar, Amit, Gregg, J. Marty

“…Ferroelectric domain walls constitute a completely new class of sheet-like functional material. Moreover, since domain walls are generally writable, erasable…”
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Magnetic Field-Induced Ferroelectric Switching in Multiferroic Aurivillius Phase Thin Films at Room Temperature by Keeney, Lynette, Maity, Tuhin, Schmidt, Michael, Amann, Andreas, Deepak, Nitin, Petkov, Nikolay, Roy, Saibal, Pemble, Martyn E., Whatmore, Roger W.

“…Single‐phase multiferroic materials are of considerable interest for future memory and sensing applications. Thin films of Aurivillius phase Bi7Ti3Fe3O21 and…”
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Direct atomic scale determination of magnetic ion partition in a room temperature multiferroic material by Keeney, Lynette, Downing, Clive, Schmidt, Michael, Pemble, Martyn E., Nicolosi, Valeria, Whatmore, Roger W.

“…The five-layer Aurivillius phase Bi 6 Ti x Fe y Mn z O 18 system is a rare example of a single-phase room temperature multiferroic material. To optimise its…”
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Bismuth Self-Limiting Growth of Ultrathin BiFeO3 Films by Deepak, Nitin, Carolan, Patrick, Keeney, Lynette, Zhang, Panfeng F, Pemble, Martyn E, Whatmore, Roger W

“…Bismuth ferrite (BiFeO3) is a widely studied material, because of its interesting multiferroic properties. Bismuth self-limiting growth of single-phase BiFeO3…”
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Ferroelectric precursor behavior of highly cation-ordered PbSc0.5Ta0.5O3 detected by acoustic emission: Tweed and polar nanoregions by Dul'kin, Evgeniy, Salje, Ekhard K. H., Aktas, Oktay, Whatmore, Roger W., Roth, Michael

“…Highly ordered ferroelectric PbSc0.5Ta0.5O3 crystals were studied by acoustic emission over a wide temperature range. Acoustic emission was found at three…”
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Fabrication of Arrays of Lead Zirconate Titanate (PZT) Nanodots via Block Copolymer Self-Assembly by Varghese, Justin, Ghoshal, Tandra, Deepak, Nitin, O’Regan, Colm, Whatmore, Roger W, Morris, Michael A, Holmes, Justin D

“…This Article presents a simple methodology for the fabrication of two-dimensional arrays of lead zirconate titanate (PZT) nanodots on n-doped Si substrates via…”
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Pyroelectric ceramics and thin films for applications in uncooled infra-red sensor arrays by Whatmore, Roger W, Zhang, Qi, Shaw, Christopher P, Dorey, Robert A, Alcock, Jeffery R

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Direct visualization of magnetic‐field‐induced magnetoelectric switching in multiferroic aurivillius phase thin films by Faraz, Ahmad, Maity, Tuhin, Schmidt, Michael, Deepak, Nitin, Roy, Saibal, Pemble, Martyn E., Whatmore, Roger W., Keeney, Lynette

“…Multiferroic materials displaying coupled ferroelectric and ferromagnetic order parameters could provide a means for data storage whereby bits could be written…”
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Anomalous Motion of Charged Domain Walls and Associated Negative Capacitance in Copper–Chlorine Boracite by Guy, Joseph G. M., Cochard, Charlotte, Aguado‐Puente, Pablo, Soergel, Elisabeth, Whatmore, Roger W., Conroy, Michele, Moore, Kalani, Courtney, Eileen, Harvey, Alan, Bangert, Ursel, Kumar, Amit, McQuaid, Raymond G. P., Gregg, J. Marty

“…During switching, the microstructure of a ferroelectric normally adapts to align internal dipoles with external electric fields. Favorably oriented dipolar…”
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Nanoscale Ferroelectric and Piezoelectric Properties of Sb2S3 Nanowire Arrays by Varghese, Justin, Barth, Sven, Keeney, Lynette, Whatmore, Roger W, Holmes, Justin D

“…We report the first observation of piezoelectricity and ferroelectricity in individual Sb2S3 nanowires embedded in anodic alumina templates. Switching…”
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100 years of ferroelectricity—A celebration by Whatmore, Roger W., You, Yu-Meng, Xiong, Ren-Gen, Eom, Chang-Beom

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Interesting Evidence for Template-Induced Ferroelectric Behavior in Ultra-Thin Titanium Dioxide Films Grown on (110) Neodymium Gallium Oxide Substrates by Deepak, Nitin, Caro, Miguel A., Keeney, Lynette, Pemble, Martyn E., Whatmore, Roger W.

“…The first evidence for room‐temperature ferroelectric behavior in anatase‐phase titanium dioxide (a‐TiO2) is reported. Behavior strongly indicative of…”
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Absence of Evidence ≠ Evidence of Absence: Statistical Analysis of Inclusions in Multiferroic Thin Films by Schmidt, Michael, Amann, Andreas, Keeney, Lynette, Pemble, Martyn E., Holmes, Justin D., Petkov, Nikolay, Whatmore, Roger W.

“…Assertions that a new material may offer particularly advantageous properties should always be subjected to careful critical evaluation, especially when those…”
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Surface Roughness Assisted Growth of Vertically Oriented Ferroelectric SbSI Nanorods by Varghese, Justin, O’Regan, Colm, Deepak, Nitin, Whatmore, Roger W, Holmes, Justin D

“…We report the catalyst-free synthesis of arrays of c-axis oriented antimony sulfoiodide nanorods on anodic aluminum oxide (AAO) substrates by vapor phase…”
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Nanotechnology—what is it? Should we be worried? by Whatmore, Roger W

“…This paper describes the origins of nanoscience from theoretical reasoning to its realization in terms of mechanical manipulation of atoms. The ability to…”
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PROPERTIES OF Bi4Ti3O12-(Na1/2Bi1/2)TiO3 PIEZOELECTRIC CERAMICS by Sanson, A, Whatmore, R W

“…Ceramics of the series (1-x)Bi4Ti3O12-x(Na1/2Bi1/2)TiO3 (BTO-NBT) were made using a conventional mixed oxide and carbonate process. The structural properties…”
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Porous, Functionally Gradient Pyroelectric Materials by Shaw, Christopher P., Whatmore, Roger W., Alcock, Jeffrey R.

“…Properties of a new type of pyroelectric ceramic structure containing a layer of known porosity laminated between two dense layers, to form a functionally…”
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Pyroelectric Arrays: Ceramics and Thin Films by Whatmore, Roger W

“…Pyroelectric infra-red detectors have been of-interest for many years because of their wide wavelength response, good sensitivity and lack of need for cooling…”
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Characterisation of PZT thin film micro-actuators using a silicon micro-force sensor by Duval, Fabrice F.C., Wilson, Stephen A., Ensell, Graham, Evanno, Nicolas M.P., Cain, Markys G., Whatmore, Roger W.

“…This paper reports on the measurements of displacement and blocking force of piezoelectric micro-cantilevers. The free displacement was studied using a surface…”
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Comparative measurements of piezoelectric coefficient of PZT films by berlincourt, interferometer, and vibrometer methods by Zhaorong Huang, Qi Zhang, Corkovic, S., Dorey, R., Whatmore, R.W.

“…Chemical solution deposition (CSD) techniques were used to prepare lead zirconate (Zr) titanate (Ti) (PZT) thin films with Zr/Ti ratios of 30/70 and 52/48…”
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