LC | EPFL

Time 2020-12-26 01:04:44

Web Name: LC | EPFL

WebSite: http://lc.epfl.ch

ID:146155

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Research and education at our laboratory are centered on science and technology of functional ceramics. We focus on piezoelectrics and ferroelectrics, polar materials, paraelectrics, high-K dielectrics, ferromagnetics, and ferroelastics. We are interested in fundamental mechanisms, theory and modeling, processing and fabrication of thin films and bulk ceramics, structural and functional properties, device design, fabrication and testing of functional ceramics.We identify and aim to clarify fundamental questions that are potential drivers of novel electroceramic-technology and its applications in areas relevant to society needs. In another major direction we demonstrate / aim to demonstrate concepts for new applications of electroceramics in fields such as information and communication technologies, medical instrumentation and industrial process monitoring. Bo Jiang awarded Bo Jiang received the 2015 ABB Award for his thesis Ceramics based technologies for high-temperature micro-reactors . Leo McGilly awarded Leo McGilly won the "Best young researcher presenter" award at the TOPO International Workshop for his presentation on "Velocity control of domain walls by top electrode modification in ferroelectric thin film capacitors". Anand Chandrasekaran awarded Anand Chandrasekaran won the Best Poster Award of the EDMX Research Day for his poster "Defects and domain walls in doped PZT". Nava Setter awarded Nava Setter received the "AVS Recognition for Excellence in Leadership" from the AVS Society and the 2013 "FMA International Award" of the FMA Meetings. Paul Muralt - Fellow of IEEE Paul Muralt was elevated to the grade of IEEE Fellow with the citation: "for contributions to piezoelectric microelectromechanical systems". Best Paper Award The paper "Origins of Electro-Mechanical Coupling in Polycrystalline Ferroelectrics During Subcoercive Electrical Loading" co-authored by Dragan Damjanovic was given the 2012 Edward C. Henry Best Paper Award by the American Ceramic Society. Petr Yudin awarded Petr Yudin received the "best oral presentation award" in the IFDS 2012 for his talk "Elastic effects and structural changes in 180-degree ferroelectric domain walls". Jin Wang awarded Jin Wang is the awardee of the 2012 Prof. Ren Wasserman Prize for his thesis "Ferroelectric Nanowires: An Investigation in Synthesis, Characterization, Functionality, and Modeling of Finite Size Effects". The citation reads "For a wide scope and original research on the synthesis and characterization of piezoelectric nano-wires of the perovskite family and the theoretical and experimental study of their functionality". DOI:10.5075/epfl-thesis-4914 Nava Setter awarded Nava Setter is the 2011 Buessem Award Recipient. The award is given annually by the US Center for Dielectric Studies to a member of the dielectrics community with a lifetime of achievement in the field. Evgeny Mikheev awarded Evgeny Mikheev received the Award for the 2011 Best Master Project of the EPFL Materials Science and Engineering Program for his project "Magnetotransport in Ultrathin (Ga,Mn)As Channels Controlled by a Ferroelectric Gate". Congratulations to Evgeny Milyutin Congratulations to Evgeny Milyutin for receiving a 2011 EPFL INNOGRANT aiming to support him in developing his company AZBOOKA which will provide online assistance of maths for school kids. Nava Setter awarded Nava Setter won the 2011 IEEE-UFFC Achievement Award, which is the highest distinction of the Ultrasonics, Ferroelectrics, and Frequency Control Society. Maxim Gureev awarded Maxim Gureev is one of the two winners of the best presentation award in the 2nd TokyoTech - EDMX Workshop on Materials that has been held in Chateau d Oex 13-16.3.2011. Ceramics Laboratory awarded ERC Advanced Grant The ERC Advanced Grant was given for the project "Exploring Mobile Interfaces: Domain Walls as Functional Elements". Dragan Damjanovic - Distinguished Lecturer for the IEEE Dragan Damjanovic serves this year as The Distinguished Lecturer for the IEEE Ultrasonics, Ferroelectrics and Frequency Control Society. His lecture is entitled "Piezoelectric materials - microscopic mechanisms, novel compositions and advanced applications". Li Jin awarded Li Jin is one of the winners of the 2010 Chinese Government Award for Outstanding Students Abroad. Eugene Mikheev awarded Eugene Mikheev is one of the winers of the best poster awards in the International Symposium on Applications of Ferroelectrics (ISAF-2010) for his poster on "Polarization screening in multiferroic (Ga,Mn)As/P(VDF-TrFE) transistors". Jin Wang awarded Jin Wang is one of the winers of the best poster awards in the International Conference on Ceramic Processing Science on (ICCPS-11) for his poster on "Monocrystalline PbZrxTi1-xO3 nanowires: fabrication and properties". The work of Dragan Damjanovic highlighted The work of Dragan Damjanovic "A morphotropic phase boundary system based on polarization rotation and polarization extension" is featured as a research highlight at the main web-site of Applied Physics Letters. Jin Wang awarded Jin Wang is one of the winners of the 2009 Chinese Government Award for Outstanding Students Abroad. Thin-film-specific elastic effects in ferroelectric domain structures Konstantin Shapovalov successfully defended his thesis and was awarded the grade of PhD. Experimental and first-principles study of point defects, domain walls, and their interactions in ferroelectrics Anand Chandrasekaran successfully defended his thesis and was awarded the grade of PhD. Towards room-temperature deterministic ferroelectric control of ferromagnetic thin films Zhen Huang successfully defended his thesis and was awarded the grade of PhD. Bent Ferroelectric Domain Walls as Reconfigurable Metallic-Like Channels Igor Stolichnov et al demonstrated and explained metallic conduction in nominally uncharged, bent, rewritable ferroelectric domain-walls in PZT. DOI: 10.1021/acs.nanolett.5b03450 Negative-pressure induced enhancements in a freestanding ferroelectric Jin Wang et al realized negative pressure on ferroelectric nano wires resulting in a strong enhancement in Curie temperature and spontaneous polarization. doi: 10.1038/nmat4365 Reconfigurable doping in a ferroelectric wide-bandgap semiconductor Arnaud Crassous et al. showed creation and nanoscale manipulation of charged walls in ferroelectric films and their action as real-time dopant activators. doi: 10.1038/nnano.2015.114 Monocrystalline PZT thin films: Towards controlled growth and controlled domain patterns Mahamudu Mtebwa successfully defended his thesis and was awarded the grade of PhD. In search of ferroelectricity in antiferroelectric lead zirconate Kaushik Vaideeswaran successfully defended his thesis and was awarded the grade of PhD. Breaking of macroscopic centric symmetry in paraelectric phases of ferroelectric materials and implications for flexoelectricity Alberto Biancoli et al. show that the large electro-mechanical response seen in paraelectric phases of ferroelectric perovskites can be induced by macroscopic symmetry breaking due to high-temperature processing. DOI: 10.1038/NMAT4139 Elastic Coupling between Nonferroelastic Domain Walls Konstantin Shapovalov et al. revealed, in ferroelectric thin films, a strong elastic interaction between nonferroelastic domain walls that are apart at distances comparable to the film thickness. PRL 113, 207601 (2014). Advanced sol-gel processing of PZT thin films for piezoelectric MEMS structures Nachiappan Chidamba- ramsuccessfully defended his thesis and was awarded the grade of PhD. Breaking of the macroscopic centric symmetry in Ba1-xSrxTiO3 ceramics and single crystals Alberto Biancoli successfully defended his thesis and was awarded the grade of PhD. PZT thin films for MEMS devices: From in-situ sputter deposition to energy harvesting device. Andrea Mazzalai successfully defended his thesis and was awarded the grade of PhD. Controlled stripes of ultra fine ferroelectric domains Ludwig Feigl et al. demonstrate in theory and practice controlled stripes of 10 nm wide domains that extend in one direction along tens of micrometres. doi: 10.1038/ncomms5677 High-order electromechanical couplings in ferroelectrics Alexander Kvasov successfully defended his thesis and was awarded the grade of PhD. Dragan Damjanovic - VP Ferroelectrics Dragan Damjanovic was appointed Vice President for Ferroelectrics at the UFFC-IEEE Society. Growth and properties of AlScN thin films for microwave transducers and piezoelectric energy harvesting Ramin Matloub successfully defended his thesis and was awarded the grade of PhD. Ferroelectric translational antiphase boundaries in nonpolar materials Xiankui Wei et al. showed ferroelectricity in translational anti phase boundaries of the non-polar antiferroelectric PbZrO3. DOI: 10.1038/ncomms4031 Book: Tuneable Film Bulk Acoustic Wave Resonators The book "Tuneable Film Bulk Acoustic Wave Resonators" by S. Gevorgian, A. Tagantsev, and A. Vorobiev appeared in print (Springer). The origin of antiferroelectricity in PbZrO3 Alexander Tagantsev et al showed that the antiferroelectric PbZrO3 is a missed incommensurate phase and its appearance is driven by flexoelectric coupling. doi:10.1038/ncomms3229 Free-electron gas at charged domain walls in insulating BaTiO3 Tomas Sluka et al. showed metallic, quasi-2DEG conductivity in charged domain walls of the classical ferroelectric insulator BaTiO3. doi:10.1038/ncomms2839 Domain wall conduction in bismuth ferrite thin films Monika Iwanowska successfully defended her thesis and was awarded the grade of PhD. MER Igor Stolichnov Igor Stolichnov was awarded the title of EPFL senior scientist (MER - Ma tre d enseignement et de recherch ). Material Study of Micromachined Thin Film Solid Oxide Fuel Cells Yan Yan successfully defended her thesis and was awarded the grade of PhD. Enhanced Electromechanical Response of Ferroelectrics Due to Charged Domain Walls Tomas Sluka et al. demonstrated a new mechanism leading to a strong enhancement of piezoelectric properties. It clarifies the so-far unexplained effect of high domain-wall density on macroscopic properties of domain-engineered ferroelectrics. doi:10.1038/ncomms1751 Macroscopic Theory of Charged Domain Walls in Ferroelectrics Maxim Gureev successfully defended his thesis and was awarded the grade of PhD. doi:10.5075/epfl-thesis-5303 Cold-Field Switching in PVDF-TrFE Ferroelectric Polymer Nanomesas A study of Igor Stolichnov et al. on ferroelectric nanomesas of PVDF suggests that there is no fundamental bar for lowering the coercive field in ferroelectric polymer nanostructures (of importance in micro- nanoelectronics). Doi:10.1103/PhysRevLett.108.027603 2nd International Workshop on Piezoelectric MEMS The workshop, chaired by Paul Muralt will be held on September 6-7 at the EPFL (Hall CM3). http://www.piezomems2011.org/index.html Book: Domains in Ferroic Crystals and Thin Films The book "Domains in Ferroic Crystals and Thin Films" by Alexander Tagantsev, Eric L Cross, and Jan Fousek appeared in print (Springer).28.8.2015 (Friday, 09:30, MXG110) Prof. Andrew Rappe (University of Pennsylvania), Ferroelectrics from first principles (selected topics)4.9.2015 (Friday, 10:30, MXG110) Prof. Manfred Fiebig (ETHZ), Monitoring the manipulation of multiferroic domains by nonlinear optics9.9.2015 (Wednesday, 16:15, MXG312) Dr. Nick Barret (CEA-Saclay), Full field electron spectromicroscopy of ferroelectric materials18.9.2015 (Friday, 08:45, MXG110) Prof. Kyle Brinkman (Clemson University), Crystalline Ceramics for Nuclear Waste Immobilization and Membrane Separations13.10.2015 (Tuesday, 16:15, ELE111) Dr. Yohachi (John) Yamashita (Toyama Prefectural University), Can we find promising piezoelectric materials and applications after 2020?16.10.2015 (Friday, 08:45, MXG110) Robin Nigon, Influence of Asymmetric Electrodes on the Switching of PZT Thin Films13.11.2015 (Friday, 08:45, MXG110) Anand Chandrasekaran, Atomistic structure of domain walls and their interaction with defects27.11.2015 (Friday, 08:45, MXG110) Konstantin Shapovalov, Mechanically incompatible ferroelastic domain walls in thin films9.12.2015 (Wednesday, 11:00, MXG312) Prof. Tomoaki Yamada, (University of Nagoya), One-dimensional Ferroelectric Nanostructure: Attempt at the Self-assembled Growth and Manipulation of the Domain Structure13-15.12.2015 (Sunday-Tuesday) Leysin WorkshopLC seminars - archive

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