About Sumanta BhandarySumanta hails from Kolkata, India. He earned his master’s degree in physics at the Indian Institute of Technology Guwahati in India, and went on to acquire a Ph.D. from Uppsala University in Sweden. As a postdoctoral researcher, he worked with Prof. Karsten Held at the Technical University of Vienna in Austria, and with Prof. Silke Biermann at Le Centre de Physique Théorique (CPHT) of L'Ecole Polytechnique in France.
Throughout his career, Sumanta has developed expertise in both first principles and many-body theory modelling of materials. Sumanta’s research interests include metal-organic molecule-based electronics and spintronics, organic-inorganic hetero-interfaces, strongly correlated oxides and novel 2D materials. An updated list of publications and other scientific contributions can be found on his Google Scholar page.
Besides research, Sumanta has a passion for landscape photography. Check out his photography page for his most recent artistic endeavors. Sumanta also enjoys sports; he has represented Vienna Cricket Club in the Austrian Cricket Association and Uppsala Internationals in the Swedish Cricket Federation.
Sumanta's ResearchI am a theoretical condensed matter physicist, specialised in first-principles and many-body theory modelling of bulk and nano-structured materials.
My research focuses on numerical method developments in the field of correlated electron systems and multi-level simulations to understand how intricate correlation-induced features emerge in low-dimensional systems.
I have an extensive network of collaborations with different experimental groups, particularly those specialised in x-ray absorption spectroscopy (including XMCD), Scanning Tunneling Microscopy, photoemission spectroscopy, and transport measurements. With these cooperations, in addition to an intrinsic and unwavering curiosity, I strive to identify novel technologically viable materials and mechanisms based on a comprehensive understanding of quantum phenomena.
- J. M. Shaw, R. Knut, A. Armstrong, S. Bhandary, Y. Kvashnin, D. Thonig, E. K. Delczeg-Czirjak, O. Karis, T. J. Silva, E. Weschke, H. T. Nembach, O. Eriksson, and D. A. Arena, Phys. Rev. Lett., 127, 207201 (2021)
- S. Bhandary, J. M. Tomczak, et.al., Nanoscale Adv. 3, 4990-4995 (2021)
- S. Bhandary, K. Held, Phys. Rev. B, 103, 245116 (2021)
- S. Bhandary,S.Haldar,B. Sanyal, physica status solidi (b), 2100423 (2021)
- D. Schmitz, C. Schmitz-Antoniak, et.al., Phys. Status Solidi B, 257, 1900456 (2020)
- J. Steinbauer, S. Biermann, S. Bhandary, Phys. Rev. B, 100, 245418 (2019)
- R. H. Kou, J. Gao, et. al., AIP Advances, 8 (12), 125219 (2018)
- S. Haldar, S. Bhandary, et.al., Phys. Rev. B 98, 085440, (2018)
- C. Schmitz-Antoniak, D. Schmitz, et.al., Ann. Phys.(Berlin), 530, 1700363, (2018)
- S. Bhandary, E. Assmann, et.al., Phys. Rev. B, 94, 155131, (2016)
- S. Bhandary, M. Schuler, et.al., Phys. Rev. B 93, 155158, (2016)
- M. Nordlund, S. Bhandary, et.al., J. Phys. D: Applied Physics 49(7), 07LT01, (2016).
- S. Bhandary, G. Penazzi, et.al., J. Phys. Chem. C, 119(36), 21227, (2015).
- D. Schmitz, C. Schmitz-Antoniak, et.al., Nat. Sci. Rep. 4, 5760, (2014)
- S. Haldar, B. S. Pujari, et.al., Phys. Rev. B, 89, 205411, (2014).
- D. Klar, S. Bhandary, et.al., Phys. Rev. B, 89, 144411, (2014).
- H. C. Herper, S. Bhandary, et.al., Phys. Rev. B, 89, 085411, (2014).
- D. Klar, B. Brena, et.al., Phys. Rev. B, 88, 224424, (2013).
- S. Bhandary, O. Eriksson, et.al., Nat. Sci. Rep. 3, 3405, (2013).
- H. C. Harper, M. Bernien, et.al., Phys. Rev. B 87, 174425,(2013).
- S. Bhandary, B. Brena, et.al., Phys. Rev. B 88, 024401, (2013).
- Y Hajati, T. Blom, et.al., Nanotechnology 23, 505501, (2012).
- S. Haldar, S. Bhandary, et.al., Solid State Comm. 152, 1719724, (2012).
- B. Dutta, S. Bhandary, et.al., Phys. Rev. B 86, 024419, (2012).
- S. Bhandary, S. Ghosh, et.al., Phys. Rev. Lett. 107, 257202, (2011).
- E. Holmstrom, J. Fransson, et.al., Phys. Rev. B 84, 205414, (2011).
- S. Bhandary, O. Granas, et.al., Phys. Rev. B 84, 092401, (2011).
- J. Zhu, S. Bhandary, et.al., J. Phys. Chem. C 115(20), 10264, (2011).
- J. M. Wikeberg, R. Knut, et.al., Phys. Rev. B 83, 024417, (2011).
- S. Bhandary, M. I. Katsnelson, et.al., Phys. Rev. B 82, 165405, (2010).
About Daniel LambertDaniel is an Aussie that made the somewhat strange decision to leave his Sydney homeland and move to Dublin in the middle of a pandemic.
At the University of New South Wales, he earned an undergraduate degree in physics and engineering and went on to complete his Ph.D. at the School of Photovoltaic and Renewable Energy, known for its revolutionary contributions to silicon solar cell development. His expertise in computational atomic chemistry came about as part of a project investigating defect chemistry of transition metal oxide solar cell contacts.
Daniel has frequently been involved in the climate justice movement, through the Australian Youth Climate Coalition and local university divestment efforts, helping organize many protests and actions in pursuit of a clean and just future for humanity.
In his free time, Daniel has worked as an amateur circus performer with skills in fire-twirling and contact ball juggling. His many hobbies and interests include boardgames, bushwalks, salsa dancing, bouldering, slacklining, and badly singing karaoke to Taylor Swift songs.
Daniel's ResearchDaniels Ph.D. research investigated defects arising from carrier selective photovoltaic cell contacts. Rigorous Density Functional Theory defect formation energy calculations for intrinsic and extrinsic defects in MoO3 were used to produce Brouwer diagrams predicting the concentration of defects and contaminants at various temperature and pressure conditions. This was followed by an investigation into defect cluster formation in silicon and a prediction of defect clusters and their electronic effects.
Daniel’s current research is motivated by the high computational cost of the hybrid functional DFT techniques that are currently required for accurately modeling material properties such as bandgaps. His team is investigating novel methods for calculating and implementing Hubbard U and Hund’s J corrections in transition metal oxides that could allow for highly accurate properties without the need for these costly hybrid functionals.
Daniel 's Publications
- D. S. Lambert and D. D. O’Regan, “DFT+U+J with linear response parameters predicts non-magnetic oxide band gaps with hybrid-functional accuracy”, arXiv:2111.08487, 2021. arXiv
- D. S. Lambert, S. T. Murphy, A. Lennon, P. A. Burr, RSC Advances, 7(85), 53810-53821 (2017)
- D. S. Lambert, A. Lennon, P. A. Burr, The Journal of Physical Chemistry C 122(48): 27241-27249 (2018)
- D. S. Lambert, A. Lennon, P. A. Burr Physical Review materials, 4, 025403.