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High-Pressure Experimental
Analytical
@Strobel Lab
Research Topics
Research Topics
Discovery of Exotic Metastable Phases
Discovery of Exotic Metastable Phases
The advancement of technologies demand for new materials with superior functionalities. Could the oft-overlooked arena of ‘metastable’ phases be the way forward? Metastable materials are kinetically trapped phases with high positive enthalpies above the equilibrium ground state(s). How to access metastable materials in the laboratory? What properties do they exhibit, could they be useful? My current research focuses on marrying computational predictions to high-pressure experiments to discover and study exotic metastable phases of materials.
Image courtesy: Venkata Bhadram
Related Publications
V. S. Bhadram*, H. Liu, E. Xu, T. Li, T. A. Strobel, Physical Review Materials, 2, 011602 (R) (2018). (Highlighted as Editor’s Suggestion).V. S. Bhadram*, Q. Cheng, C. K. Chan, Y. Liu, K. Landskron, and T. A. Strobel, ACS Applied Energy Materials, 1, 260 (2018).
V. S. Bhadram*, D. Y. Kim and T. A. Strobel. Chemistry of Materials, 28, 1616 (2016) (Highlighted in EFRC Newsletter, Fall 2016).
Structural and Electronic Phase Transitions in Materials
Structural and Electronic Phase Transitions in Materials
Phase behavior of materials is greatly influenced by the thermodynamic parameters: temperature and pressure. Significant part of my research is aimed at probing the temperature and/or pressure induced phase transitions in variety of materials including photovoltaics, magnetic multiferroics, glasses and graphene. I utilize various in situ and ex situ characterization tools like Raman and Brillouin spectroscopy, laboratory and synchrotron x-ray diffraction techniques to capture the structure and dynamics of crystal lattices.
Related Publications
V. S. Bhadram*, L. Krishna, E. Toberer, R. Hrubiak, E. Greenberg, V. Prakapenka, T. A. Strobel, Applied Physics Letters, 110, 182106 (2017).V. S. Bhadram, B. Rajeswaran, A. Sundaresan and C. Narayana, Europhysics Letters, 101, 17008 (2013).
V. S. Bhadram, Diptikanta Swain, R. Dhanya, A. Sundaresan and C. Narayana. Materials Research Express, 1, 02611 (2014).
N. Kurra, V. S. Bhadram, C. Narayana and G.U. Kulkarni, Nanotechnology, 23, 425301 (2012).
S. Das, V. S. Bhadram, C. Narayana and A. J. Bhattacharyya, Journal of Physical Chemistry B, 115, 12356 (2011).
S. Murugavel, C. Vaid, V. S. Bhadram, and C. Narayana, Journal of Physical Chemistry B, 114, 13381 (2010).
Cover Photo: Ball and stick model of titanium pernitride crystal structure depicting dumbbell like single bonded dinitrogen units.
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