PANCHANANA KHUNTIA

Assistant Professor

Email: pkhuntia@iitm.ac.in

Phone: +91-44-2257 4847

Office : HSB 119A

 

Quantum Materials Group Homepage

Area of Research

Experimental Condensed Matter

Research Interest

 

Exploring charge, spin, and orbital degrees of freedom of electrons in strongly correlated electron materials is at the forefront of modern condensed matter physics research. Nurturing a deeper insight into emergent behavior of strongly correlated electron systems with a view towards attaining clarity of thought and completeness of understanding. This might enormously contribute towards a better understanding of emerging physical phenomena such as spin liquids, Skyrmions, quantum criticality, unconventional superconductivity, metal insulator transition, and localization in interacting systems. Our research themes include Synthesis of emerging quantum materials, spin-glass, high Tc superconductors, spin polarized, and functional materials and their investigation using Magnetization, Specific heat, NMR, mSR, and Neutron scattering. Novel quantum materials are of special importance in view of their exotic physical phenomena stemming from the low lying collective spin excitations and understanding the magnetic properties of these quantum materials is essential as this is a prerequisite to enhance our knowledge in answering many fundamental issues of condensed matter and for potential applications. For instance, magnetization and NMR results establish a magnetic phase diagram of a novel helimagnet. NMR and magnetization results on a cubic helimagnet (Skyrmion lattice) hold special significance in understanding chiral modulations, anisotropic interactions, and spin dynamics in the Skyrmion lattice. Our comprehensive investigation reveals an unusually large modulation of hyperfine fields at the magnetic site of a disordered Heusler alloy in zero field, which would act as a precursor to the observed giant exchange bias in the field-cooled state of this class of materials. The Skyrmion lattice Chiral magnet and Heusler alloys are ideal candidates for potential applications in advanced high density magnetic data storage devices.

 

In particular, we are interested in

(1)   Synthesis and Growth of Novel Quantum Materials potential to host exotic Quantum States and materials those hold immense promise for Technological Applications.

(2)   Low Temperature (as low as miliKelvin) and high field (sweep magnetic field as high as 60Tesla) Nuclear Magnetic Resonance

(3)   Advanced Thermodynamics

(4)   Muon Spin Relaxation (as low as 20 mK and in magnetic field)

(5)   Neutron Diffraction and Inelastic Neutron Scattering (as low as 50 mK and in magnetic field)

(6)   Angle-Resolved Photoemission Spectroscopy

(7)   Surface-Interface Phenomena in Quantum Materials

 

Biographical Sketch

 

Dr. Khuntia received his PhD from IIT Bombay in 2010. He carried out part of his PhD work at University of Pavia, Italy, where he was a European Union Network of Excellence Fellow. Subsequently, he moved to Max Planck Institute, Dresden, Germany as a Max Planck Fellow for his post-doctoral work (2010-2013). Later, he spent a brief stint at US Department of Energy Ames Laboratory, Iowa, USA as a visiting scientist during Jan.-Dec. 2014. He has been awarded Marie Curie International Incoming Fellowship hosted at LPS, Orsay in collaboration with Rutherford Appleton Laboratory, Oxford and Paul Scherrer Institute (PSI), Switzerland. Dr. Khuntia is an experimental condensed matter physicist and his research interests encompass many aspects of novel magnetism and superconductivity with the general themes of exotic frontier of strongly correlated electron systems including emergent physical phenomena such as quantum spin liquids, quantum phase transitions, and Skyrmions. Click here for his CV.

 

Publication: 32 [1 Nature Materials, 3 Physical Review Letters,  14 Phys. Rev. B including 6 Rapid Communications and 3 Editors Suggestions]. Click here for Full Publication list.

 

Google Scholar, ResearcherID

Award/Fellowship/Recognitions

Marie Curie International Incoming Fellowship

US Department of Energy Fellowship

Max Planck Fellowship

European Union Network of Excellence Fellowship

Outstanding Reviewer, Institute of Physics, UK

Council of Scientific and Industrial Research (CSIR, India) Fellowship

MHRD, India Fellowship

National Merit Scholarship

 

Professional Activities

 

Referee for American Physical Society (Phys. Rev. Lett., Phys. Rev. B, etc)

Referee for Institute of Physics (UK) journals

Referee for American Institute of Physics.

Editorial Board member of Frontiers in Physics

Adjudicator: IOP and Elsevier Journals

Reviewer for European Commission Project Proposals

Member of Institute for Complex Adaptive Matter,USA

Member of American Physical Society

Member of German Physical Society

 

Selected Publications

1.      Contiguous 3d and 4f Magnetism: Strongly Correlated 3d Electrons in YbFe2Al10: P. Khuntia*, P. Peratheepan, A. M. Strydom, Y. Utsumi, K.-T. Ko, K.-D. Tsuei, L. H. Tjeng, F. Steglich and M. Baenitz, Phys. Rev. Lett. 113, 216403 (2014).

2.       Design of compensated ferrimagnetic Heusler alloys for giant tunable exchange bias: Ajaya K. Nayak, Michael Nicklas, Stanislav Chadov, Panchanana Khuntia, Chandra Shekhar, Adel Kalache, Michael Baenitz, Yurii Skourski, Veerendra K. Guduru, Alessandro Puri, Uli Zeitler, and Claudia Felser, Nature Materials 14, 679 (2015).

3.        Spin Liquid State in the 3D Frustrated Antiferromagnet PbCuTe2O6: NMR and Muon Spin Relaxation Studies: P. Khuntia*, F. Bert, P. Mendels, B. Koteswararao, A. V. Mahajan, M. Baenitz, F. C. Chou, C. Baines, A. Amato, and Y. Furukawa, Phys. Rev. Lett. 116, 107203 (2016).

4. Symmetry Reduction in the Quantum Kagome Antiferromagnet Herbertsmithite; A. Zorko,  M. Herak,  M. Gomilsek, J. van Tol, M. Velazquez, P. Khuntia, F. Bert, and P.   Mendels; Phys. Rev. Lett. 118, 017202 (2017).

5.   Field tuned critical fluctuations in YFe2Al10: Evidence from magnetization, 27Al (NMR, NQR) investigations: P. Khuntia*, A.M. Strydom, L. S. Wu, M. C. Aronson, F. Steglich, and M. Baenitz, Phys. Rev. B 86, 220401 https://journals.aps.org/files/thumb_EditorsSuggestion.jpg(R) (2012) [Rapid Communications & Editors Suggestion ].

6.    Spin liquid state in the disordered triangular lattice Sc2Ga2CuO7 revealed by NMR: P. Khuntia*, R. Kumar, A. V. Mahajan, M. Baenitz, and Y. Furukawa, Phys. Rev. B 93, 140408(R) (2016) [ Rapid Communications]

 

Research Group

Currently, our group consists of two PhD students and one National Post-Doctoral Fellow.

We are always looking for bright, highly motivated, and hard working students (B.Tech/BS/MS/MSc/M.Tech/PhD) who want to dive into the world of Experimental Condensed Matter.

 

We also welcome highly motivated post-doc candidates with independent fellowships (CSIR/SERB-National-PDF, DST etc.) or through IIT Madras Institute Post-doctoral Fellowship.

 

Candidates with PhD in Experimental Condensed Matter particularly expertise in the synthesis/growth of magnetic and superconducting materials will be preferred. Send me an email with your CV if you have common research interest.

 

Collaborations

We have strong collaboration with renowned Condensed Matter Physics Groups.

National Collaborators

Condensed Matter Groups at IIT Madras

Prof. Avinash V. Mahajan (IIT Bombay)

 

International Collaborators

Prof. Dr. Frank Steglich (Max Planck Institute, Germany)

Prof. Dr. Michael Baenitz (Max Planck Institute, Germany)

Prof. Dr. Manuel Brando (Max Planck Institute, Germany)

Prof. Ferdinando Borsa (Ames Laboratory, Department of Energy, USA)

Prof. Yuji Furukawa (Ames Laboratory, Department of Energy, USA)

Prof. Philippe Mendels (Laboratoire de Physique des Solides, France)

Prof. Fabrice Bert (Laboratoire de Physique des Solides, France)

 

ARPES group at SOLEIL, France

 

Muon group at

Paul Scherrer Institute (PSI), Switzerland

Rutherford Appleton Laboratory, Oxford

 

Neutron Group at

Paul Scherrer Institute (PSI), Switzerland

Institut of Laue-Langevin, France

 

And

Dresden High Magnetic Field Laboratory

 

We also have collaboration with other renowned Condensed Matter groups at national level and groups at Max Planck Institute, Oxford, Dresden, Ames, Orsay, Augsburg, Brookhaven National Laboratory, Pavia, and Slovenia.

Funding Agencies
We are very thankful to the following funding agencies for their generous support in our research efforts.

IIT Madras

Department of Science and Technology

Max Planck Society

European Commission

Department of Energy, USA