Vidya Madhavan

For More Information

• Madhavan Research Group Web Site

Biography

Professor Madhavan received her bachelor's degree in metallurgical engineering in 1991 from the Indian Institute of Technology, Chennai, and a master of technology degree in solid state materials in 1993 from the Indian Institute of Technology, New Delhi. She obtained her phD from Boston University in 2000. She held a postdoctoral appointment at the University of California, Berkeley from 1999 to 2002, before joining the physics faculty at Boston College in 2002. She joined the faculty at Illinois in 2014 as a full professor.

Research Statement

Professor Madhavan investigates fundamental problems in quantum materials where interactions between the spin, charge, and structural degrees of freedom lead to emergent phenomena. She uses the tools of scanning tunneling microscopy (STM), scanning tunneling spectroscopy (STS), spin-polarized STM (SP-STM) and molecular beam epitaxy (MBE) to unravel the mysteries of complex systems at the atomic scale. Her group carries out challenging, high-risk experiments, wherein the possibility of discovering new phenomena is high. Her team's recent work has focused on STM studies of complex oxides and monolayer films of topological materials and transition metal dichalcogenides.

Graduate Research Opportunities

We currently have openings in our group for motivated students. Please send me email if you are interested in learning more about our projects.

Research Interests

• Unconventional superconductors, topological superconductors, correlated oxides, topological crystalline insulators, transition metal dichalcogenides Scanning tunneling microscopy and spectroscopy (STM), Molecular Beam Epitaxy (MBE)
• MBE growth of WTe2, Bi2Se3, SnTe, NbSe2, TiSe2, VSe2, BiSb, etc

Selected Articles in Journals

• I. Zeljkovic, Y. Okada, M. Serbyn, R. Sankar, D. Walkup, W. Zhou, J. Liu, G.Chang, Y.J. Wang, M. Zahid Hasan, F. Chou, H. Lin, A. Bansil, L. Fu and V. Madhavan. Dirac mass generation from crystal symmetry breaking on the surfaces of topological crystalline insulators, Nat. Mater. 14, 318-324 (2015).
• I. Zeljkovic, K.L. Scipioni, D. Walkup, Y. Okada, W. Zhou, R. Sankar, G. Chang, Y.J. Wang, H. Lin, A. Bansil, F. Chou, Z. Wang, and V. Madhavan. Nanoscale Determination of the Mass Enhancement Factor in the Lightly-Doped Bulk Insulator Lead Selenide, Nat. Commun. 6, 6559 (2015).
• I. Zeljkovic, D. Walkup, B. Assaf, K.L. Scipioni, R. Sankar, F. Chou. Vidya Madhavan. Strain engineering Dirac surface states in heteroepitaxial topological crystalline insulator thin films. Nat. Nanotech. 10, 849–853 (2015).
• Z. Wang, D. Walkup, P. Derry, T. Scaffidi, M. Rak, S. Vig, A. Kogar, I. Zeljkovic, A. Husain, L.H. Santos, Y. Wang, A. Damascelli, Y. Maeno, P. Abbamonte, E. Fradkin, V. Madhavan. Quasiparticle Interference and Strong Electron-Mode Coupling in the Quasi-One-Dimensional Bands of. Sr₂RuO₄, Nat. Phys. 13, 799-805 (2017).
• S. Yan, D. Iaia, E. Morosan, E. Fradkin, P. Abbamonte, V. Madhavan, Influence of domain walls in the incommensurate charge density wave state of Cu intercalated 1T-TiSe₂. Phys. Rev. Lett. 118, 106405 (2017).
• Z. Wang, Y. Okada, J. O Neal, W. Zhou, D. Walkup, C. Dhital, T. Hogan, P. Clancy, Y.-J. Kim, Y. F. Hu, L. Santos, S.D. Wilson, N. Trivedi, and V. Madhavan. Disorder induced power-law gaps in an Insulator-metal Mott transition. PNAS 115:44, 11198-11202 (2018).
• D. Iaia, G. Chang, T. R. Chang, J. Hu, Z. Mao, H. Lin, S. Yan and V. Madhavan, Searching for topological Fermi arcs via quasiparticle interference on a type-II Weyl semimetal MoTe₂, npj Quantum Materials 3, 38 (2018)
• D. Walkup, B. Assaf, K.L. Scipioni, R. Sankar, F. Chou, G. Chang, H. Lin, I. Zeljkovic, V. Madhavan. Interplay of orbital effects and nanoscale strain in topological crystalline insulators. Nat. Commun. 1550 (2018).
• I. Zeljkovic, Y. Okada, C.-Y. Huang, R. Sankar, D. Walkup, W. Zhou, M. Serbyn, F. Chou, W.-F. Tsai, H. Lin, A. Bansil, L. Fu, M. Zahid Hasan, V. Madhavan. Mapping the unconventional orbital texture in topological crystalline insulators. Nat. Phys.10, 572–577 (2014).
• C. Dhital, T. Hogan, W. Zhou, Xiang Chen, Zhensong Ren, Mani Pokharel, Yoshinori Okada,M. Heine, Wei Tian, Z. Yamani, C. Opeil, J.S. Helton, J.W. Lynn, Z. Wang, V. Madhavan, S.D. Wilson. Carrier localization and electronic phase separation in doped spin-orbit-driven Mott phase in Sr₃(Ir_1-xRu_x)₂O₇, Nature Communications 3377 (2014).
• Yoshinori Okada, Maksym Serbyn, H. Lin, Daniel Walkup, W. Zhou, C. Dhital, Madhab Neupane, Suyang Xu, Yung Jui Wang, R. Sankar, F. Chou, Arun Bansil, M. Zahid Hasan, Stephen D. Wilson, Liang Fu and V. Madhavan, Observation of Dirac node formation and mass acquisition in a topological crystalline insulator, Science 341, 1496-1499 (2013)
• Yoshinori Okada, Daniel Walkup, Hsin Lin, Chetan Dhital, Tay-Rong Chang, Sovit Khadka, Wenwen Zhou, Horng-Tay Jeng, Arun Bansil, Ziqiang Wang, Stephen Wilson, V. Madhavan, Imaging the evolution of metallic states in a spin-orbit interaction driven correlated iridate, Nature Materials12, 707-713 (2013)
• Zhenyu Wang, Daniel Walkup, Yulia Maximenko, Wenwen Zhou, Tom Hogan, Ziqiang Wang, Stephen D. Wilson and Vidya Madhavan , Doping induced Mott collapse and the density wave instability in (Sr1-xLax)3Ir2O7 , npj quantum materials 4, 1-7 (2019)
• R. Sharma, S.D. Edkins, Z. Wang, A. Kostin, C. Sow, Y. Maeno, A.P. Mackenzie, J.C. Seamus Davis, and V. Madhavan, Momentum-resolved superconducting energy gaps of Sr₂RuO₄ from quasiparticle interference imaging, PNAS 117:10, 5222-5227 (2020).
• 1. Zhenyu Wang, Jorge Olivares Rodriguez, Lin Jiao, Sean Howard, Martin Graham, G. D. Gu, Taylor Hughes, Dirk K. Morr, V. Madhavan, Signature of Dispersing 1D Majorana Channels in an Iron-based Superconductor, Science 367, 104-108 (2020)