Rajendra S. Dhaka

Rajendra S. Dhaka
Assistant Professor
Indian Institute of Technology Delhi
Hauz Khas,New Delhi-110016
Tel:+91-11-2659 1439 (O)

Areas of Research Interest:

  • Experimental Condensed Matter Physics
  • Strongly correlated systems
  • Surface and interface research
  • Low dimensional systems
  • Complex oxide thin films and hetrostructures
  • High Tc superconductors
  • Metal insulator transition

Expertise in experimental techniques:

  • Angle-resolved photoemission Spectroscopy (ARPES)
  • Pulsed laser deposition (PLD)
  • Reflection high-energy electron diffraction (RHEED)
  • Photoelectron spectroscopy (XPS and UPS)
  • Low energy electron diffraction (LEED)
  • Physical Property Measurement System (PPMS)

Academic and Professional Background:

  • 04/2014 - onwards: Assistant Professor at Department of Physics, Indian Institute of Technology Delhi (IIT/D) Hauz Khas, New Delhi-110016, INDIA
  • 02/2013-03/2014: Scientific Collaborator, (with Prof. Dr. Joël Mesot) at Paul Scherrer Institut (PSI)-Swiss Light Source (SLS), Villigen, Switzerland and École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
  • 11/2010-11/2012: Post-doctoral Research Associate, (with Prof. Aadm Kaminski) at The Ames Laboratory, US DOE, Iowa State University, Ames, Iowa, USA
  • 11/2008-11/2010: Post-doctoral Fellow (with Prof. Dr. Jürgen Kirschner) at Max Planck Institute for Microstructure Physics, Halle (Germany).
  • 07/2002-11/2008: Ph. D. in Physics (with Dr. Sudipta Roy Barman) at UGC-DAE Consortium for Scientific Research, Indore, India.
  • 07/1999-02/2002: M. Sc. (Physics) COSIST (four semester program with 71.83%) at Department of Physics, University of Rajasthan, Jaipur, India

Selected Publications:

  1. Rishabh Shukla, and R. S. Dhaka*, 'Anomalous magnetic and spin glass behavior in Nb substituted LaCo(1-x)NbxO3' Physical Review B, 97, 024430 (2018).
  2. Ravi Prakash, Rishabh Shukla, Priyanka, Anita Dhaka, and R. S. Dhaka*, 'Tuning ferromagnetism and spin state in La(1-x)AxCoO3 (A = Sr, Ca) nanoparticles' Journal of Alloys and Compounds, 764, 379, (2018).
  3. Mahesh Chandra, Rishabh Shukla, M. Rashid, Amit Gupta, S. Basu, and R. S. Dhaka*, 'Synthesis and physical properties of NaxTO2 (T = Mn, Co) nanostructures for cathode materials in Na-ion batteries' Materials Research Bulletin, 105, 178 (2018).
  4. R. S. Dhaka, and S. R. Barman 'Plasmon Excitations by Photoelectron Emission from Rare Gas Nanobubbles in Aluminum' Physical Review Letters, 104, 036803 (2010).
  5. R. S. Dhaka, Chang Liu, R. M. Fernandes, Rui Jiang, C. P. Strehlow, Takeshi Kondo, A. Thaler, J. Schmalian, S. L. Bud'ko, P. C. Canfield, and Adam Kaminski 'What Controls the Phase Diagram and Superconductivity in Ru-Substituted BaFe2As2?' Physical Review Letters, 107, 267002 (2011).
  6. A. Pandey, R. S. Dhaka, J. Lamsal, Y. Lee, V. K. Anand, A. Kreyssig, T. W. Heitmann, R. J. McQueeney, A. I. Goldman, B. N. Harmon, A. Kaminski, and D. C. Johnston 'Ba1-xKxMn2As2: An Antiferromagnetic Local-Moment Metal' Physical Review Letters, 108, 087005 (2012).
  7. R. S. Dhaka, S. E. Hahn, E. Razzoli, Rui Jiang, M. Shi, B. N. Harmon, A. Thaler, S. L. Bud'ko, P. C. Canfield, and Adam Kaminski 'Unusual temperature dependence of band dispersion in Ba(Fe1-xRux)2As2 and its consequences for antiferromagnetic ordering' Physical Review Letters, 110, 067002 (2013).
  8. R. S. Dhaka, Rui Jiang, S. Ran, S. L. Bud'ko, P. C. Canfield, M. Tomic, R. Valeni, Y. Lee, B. N. Harmon, and Adam Kaminski 'Dramatic changes in the electronic structure upon transition to the collapsed tetragonal phase in CaFe2As2' Physical Review B (Rapid Communication), 89, 020511(R) (2014).
  9. R. S. Dhaka, Y. Lee, V. K. Anand, D. C. Johnston, B. N. Harmon, and Adam Kaminski, `Angle-resolved photoemission spectroscopy study of BaCo2As2' Physical Review B, 87, 214516 (2013).
  10. R. S. Dhaka, A. K. Shukla, K. Horn, and S. R. Barman, `Photoemission study of Al adayers on Mn' Physical Review B, 84, 245404 (2011).
  11. R. S. Dhaka and S. R. Barman, `Bimodal distribution of neon nano-bubbles in Aluminium' Physical Review B, 79, 125409 (2009). cited by Nature-India.
  12. R. S. Dhaka, C. Biswas, A. K. Shukla, S. R. Barman, and Aparna Chakrabarti, `Xe and Ar nanobubbles in Al studied by photoemission spectroscopy' Physical Review B, 77, 104119 (2008).
  13. R. S. Dhaka, S. Banik, A. K. Shukla, V. Vyas, A. Chakrabarti, S. R. Barman, B. L. Ahuja, and B. K. Sharma, `Electronic structure of alpha- and beta-brass' Physical Review B, 78, 073107 (2008).
  14. R. S. Dhaka, A. K. Shukla, M. Maniraj, S. W. D'Souza, J. Nayak, and S. R. Barman, `An ultrahigh vacuum compatible sample holder for studying complex metal surfaces' Review of Scientific Instruments, 81, 043907 (2010).
  15. R. S. Dhaka, K. Gururaj, S. Abhaya, S. Amirthapandian, G. Amarendra, B. K. Panigrahi, K. G. M. Nair, N. P. Lalla, and S. R. Barman, `Depth resolved positron annihilation studies of argon nano-bubbles in Aluminum' Journal of Applied Physics, 105, 054304 (2009).
  16. R. S. Dhaka, S. W. D'Souza, M. Maniraj, A. Chakrabarti, D. L. Schlagel, T. A. Lograsso, and S. R. Barman, `Photoemission study of the (100) surface of Ni2MnGa and Mn2NiGa ferromagnetic shape memory alloys' Surface Science, 603, 1999 (2009).