Recent Invited Talks

“Adventures and discoveries in layered two-dimensional ferroelectrics”, Evolution of Electronic Structure Theory and Experimental Realization (EESTER) 2020, virtually from India, December 15, 2020.

“The wide world of materials, one atom at a time — Nanoscience and Nanotechnology”, STEMtober 2020, virtually from California, October 24, 2020.

“Probing nanoscale materials by combining computation and microscopies”, IEEE International Conference on Signal Processing and Integrated Networks (IE3IC), Lucknow, India, February 5-8, 2020.

“Novel two-dimensional materials, structures, and applications”, Workshop on Nanoscience & Technology: Risk and Reliability, Galgotis University, New Delhi, India, February 3, 2020.

“Synergy between microscopy and theory to probe nanoscale materials”, Frontiers of Electron Microscopy and Materials Science (FEMMS), Asheville, NC, September 1-6, 2019.

“Novel two-dimensional materials”, China Nano 2019, Beijing, China, August 17-19, 2019.

“Novel two-dimensional materials”, 16th International Conference on Nanosciences & Nanotechnologies (NN19), Thessaloniki, Greece, July 2-5, 2019.

“Novel 2D materials and new developments in charged-defect formation energies”, Workshop on Frontiers in Theory and Simulations of Two-dimensional Materials, Telluride, CO, June 16-20, 2019.

“2D material theory”, University of Minnesota Fourth Annual 2D Materials Summer School, June 13-14, 2019.

“The true quantum physical reality of polar-nonpolar oxide interfaces – the polar-catastrophy model confuted”, Workshop on Surfaces and Interfaces of Quantum Materials, Beijing, China, June 3-4, 2019.

“Formation energies of charged defects – resolution of long-standing difficulties”, Workshop on Frontiers in Density Functional Theory and Beyond – Advances and Challenges, Beijing, China, May 30-June 1, 2019.

“Formation energies of charged defects – resolution of long-standing difficulties”, 2019 Workshop on Recent Developments in Electronic Structure, University of Illinois at Urbana-Champaign, Urbana, IL, May 20-22, 2019.

“Novel states of matter”, Shechtman – Suresh Convocation & Honorary Symposium, Thessaloniki, Greece, November 30-December 3, 2018.

“Probing complex nanostructures one atom at a time using a combination of theory and microscopy”, NANOTECH 2018, Puerto Vallarta, Mexico, October 22-26, 2018.­­­­­

“Evolution of the theory of defects in semiconductors”, International Workshop on Evolution of Electronic Structure Theory & Experimental Realization (EESTER-2018), Chennai, India, September 11-15, 2018.

“Impurities and defects in graphene”, 8th North America-Greece-Cyprus (NAGC) Workshop on Paramagnetic Materials, Sparta, Greece, June 18-22, 2018.

“Square-lattice TMO monolayers and Van der Waals heterostructures”, 5th Edition Workshop on Complex Oxides, Capri, Italy, May 20-24, 2018.

“The power of combining STEM/EELS with density-functional-theory calculations to probe complex nanostructures”, International Workshop on Scanning Transmission Electron Microscopy (STEM) 2018, Beijing, China, May 10-12, 2018.

“Probing magnetism in nanostructures by a combination of scanning transmission electron microscopy and theory”, Molecular Magnets Workshop, St. Simons Island, GA, February 23-24, 2018.

“Physics at the atomic scale using a combination of quantum mechanics and microscopy”, 15th Physics Meeting, Escuela Politecnica Nacional, Quito, Ecuador, October 24-27, 2017.

“Reconciling charged defects with statistical mechanics”, Symposium in honor of 90th birthday of Morrel H. Cohen, Princeton University, Princeton, NJ, September 30, 2017.

“Probing complex materials atom by atom using a combination of theory and microscopy”, EUROMAT 2017, Thessaloniki, Greece, September 18-22, 2017.

“Novel two-dimensional materials”, 2017 CTMNM/NAGC Workshop, Paphos, Cyprus, May 8-12, 2017.

“Probing the nanoscale with a combination of microscopy and theory”, NanoWorld Conference 2017, Boston, MA, April 3-5, 2017.

“Magnetism in two dimensions”, CTMNM 2016, Sixth Workshop on Current Trends in Molecular and Nanoscale Magnetism, Pylos, Greece, October 10-13, 2016.

“Degradation of electronic devices – the role of hydrogen”, 2016 Southeast Symposium on Contemporary Engineering Topics, Jackson, Mississippi, August 26, 2016.

“Local-curvature effects in graphene”, Fullerene, Nanotubes and Curved Nanostructures Symposium–Carbon 2016, State College, Pennsylvania, July 10-15, 2016.

“Memristive oxides”, 4th International Workshop on Complex Oxides – Santorini 4, Porquerolles, France, June 13-17, 2016.

“Room-temperature boron doping and atomically-resolved spectroscopy of impurities in graphene” EMRS 2016, Lille, France, May 2-5, 2016.

“Electron-energy-loss spectroscopy (EELS): An atomic-resolution complement to photon-based spectroscopies – theory and applications”, St. Simons Island, GA, February 14-18, 2016.

“Memristive materials and devices – A New Frontier” 6th International Conference on Micro-Nanoelectronics, Nanotechnologies, & MEMs, Athens, Greece, 4-7 October 2015.

“Probing complex nanostructures by combining atomic-scale theory and scanning transmission electron microscopy”, Microscopy and Microanalysis 2015, Portland, OR, August 2-6, 2015.

“Connecting theory to experiments – Defects in semiconductor electronic devices” – Plenary talk, 28th International Conference on Defects in Semiconductors, Helsinki, Finland, July 27-31, 2015.

“Things strange and wonderful at the nanoscale” 2015 International Workshop on Emerging Functional and Electronic Materials and Devices, June 30-July 2, 2015, Beijing, China

“Discovery of a novel form of crystalline order suitable for thermoelectric applications”, North America-Greece-Cyprus Workshop, Athens, Greece, June 3-5, 2015.

“Multiphonon carrier capture and carrier scattering by defects in semiconductors” Nothing is Perfect – the quantum mechanics of defects, Monte Verita, Switzerland, April 26-29, 2015.

“The role of vacancies in controlling diverse properties of complex semiconductor systems” Materials Research Society Meeting, San Francisco, California, April 6-10, 2015.

“Physics of complex materials systems through theory and microscopy/EELS” Electron and Scanning Probe Microscopies, Washington, D.C., October 19-22, 2014.

“Doping, functionality, and permeability of graphene”, Electrochemical Society Meeting, Cancun, Mexico, October 6-7, 2014.

“Defect-mediated degradation in III-V HEMTs – from atomic-scale physics to engineering-level modeling” Workshop on Defects in Wide Band Gap Semiconductors, Baltimore, Maryland, September 22-24, 2014.

“Gas capture and separation – an atomic-scale view”, Second Hellenic Forum for Science, Technology, and Innovation, Athens, Greece, June 30-July 4, 2014.

“Probing novel nanostructures with a combination of theory and microscopy”, Third Annual World Congress of Advanced materials – 2014, Chongqin, China, June 6-9, 2014.

“Defects in two-dimensional materials and nanoparticles – Theory and microscopy”, European Materials Research Society, Lille, France, May 26-30, 2014.

“Structure, stability and phase transitions in TMOs”, International Workshop on Complex Oxides – Santorini 3, Protaras, Cyprus, May 19-23, 2014.

“Density functional theory and microscopy – a combination tool for the design of new materials” Electronic Materials and Applications, Orlando, Florida, January 22 – 24, 2014.

“Probing Energy-Related Materials at the Atomic Scale using a Combination of Density Functional Theory and Scanning Transmission Electron Microscope” International Workshop on Materials, Innovation and Solutions for the Oil and Gas Industry, Petroleum Institute, Abu Dhabi, United Arab Emirates, November 26 – 27, 2013.

“Two-dimensional materials”, Plenary talk, 19th Panhellenic Conference on Solid State Physics and materials Science, Athens, Greece, September 22-25, 2013.

“Ferromagnetism in complex transition-metal-oxide structures”, Joint European Magnetism Symposia, August 25-30, 2013, Rhodes, Greece

Probing complex interfacial phenomena using a combination of theory and microscopy”, Plenary talk, 14th International Conference on Intergranular and Interphase Boundaries in Materials 2013, June 23-28, 2013, Halkidiki, Greece.

“Atomic-scale modeling of device reliability- the defects that cause the trouble”,18th Conference of Insulating Films on Semiconductors, June 25-28, 2013, Cracow, Poland.

“Probing complex systems of density functional theory and scanning transmission electron microscopy”, Atomic structure of nanosystems from first-principles simulations and microscopy experiments, June 4-6, 2013, Helsinki, Finland.

“Oxygen vacancies in transition-metal oxides”, Fifth North America-Greece-Cyprus Workshop on Paramagnetic Materials, Limassol, Cyprus, May 22-26, 2013.

“Grain boundaries in graphene — theory and microscopy”, Materials Research Society Fall Meeting, Boston, MA December 26-30, 2012.

“Oxygen vacancies in transition-metal oxides- a significant degree of freedom”, Workshop on Transition Metal Oxides, October 2- 5, 2012, Mallorca, Spain.

“Probing graphene excitations with a combination of scanning transmission electron microscopy and density functional theory”, CECAM Workshop on Graphene, August 13 – 17, 2012,  Bremen, Germany.

“Modeling device reliability – the defects that cause the trouble”, 5th SINANO Summer School, August 28- 31, 2012, Bertinoro (Forlì-Cesena), Italy.

“Device Degradation – The Defects that Cause the Trouble”, Plenary talk, International Conference on Extended Defects in Semiconductors, June 24-29, 2012, Thessaloniki, Greece.