Publications:

Ph.D. Thesis:

• Quantum-noise-limited microwave amplification and bolometric sensing using a graphene Josephson junction -- Joydip Sarkar (2024)

• Local modification of high-Tc superconductivity and superconducting diode effect in few unit cells thick Bi2Sr2CaCu2O8+δ --- Sanat Ghosh (2023)

• Berry curvature dominated electronic transport in flat bands of Twisted Double Bilayer Graphene -- Subhajit Sinha (2023)  Best Thesis  Award TIFR 

• Electronic Transport in Topological Flat Bands of Twisted Double Bilayer Graphene -- Pratap Chandra Adak (2022)  Honorable Mention in the Best thesis Award TIFR

• Study of magnon dynamics and magnon-photon coupling with van der Waals antiferromagnet -- Supriya Mandal (2022)

• Electronic transport properties of few-layer graphene -- Biswajit Datta (2019) Best Thesis  Award TIFR

• Optoelectronic properties and photoresponse of graphene -- Sameer Grover (2017)

• Tailored Tunability of Nanoelectromechanical Systems for Mode Coupling and Thermal Studies  -- John P. Mathew (2016) 

• Tunable 1-D lateral superlattice – effect on band structure and quantum Hall in graphene -- Sudipta Dubey (2015)

• Phase transitions at nanoscale: a study with charge density wave and metal-insulator transition systems -- Shamashis Sengupta (2012)

• Quantum Hall Effect and Electromechanics in Graphene  -- Vibhor Singh (2012)  Best Thesis  Award TIFR 

• Electrical and thermal transport studies in individual InAs nanowires -- Sajal Dhara (2012)

• Semiconductor nanowire electromechanics -- Hari Solanki (2011) 

• Journal:

• Kerr non-linearity enhances the response of a graphene Josephson bolometer

Joydip Sarkar, Krishnendu Maji, Abhishek Sunamudi, Heena Agarwal, Priyanka Samanta, Anirban Bhattacharjee, Rishiraj Rajkhowa, Meghan P. Patankar, Kenji Watanabe, Takashi Taniguchi, Mandar M. Deshmukh

Nature Communications (2025). 

• Superconducting magic-angle twisted trilayer graphene hosts competing magnetic order and moiré inhomogeneities

Ayshi Mukherjee, Surat Layek, Subhajit Sinha, Ritajit Kundu, Alisha H. Marchawala, Mahesh Hingankar, Joydip Sarkar, L. D. Varma Sangani, Heena Agarwal, Sanat Ghosh, Aya Batoul Tazi, Kenji Watanabe, Takashi Taniguchi, Abhay N. Pasupathy, Arijit Kundu, Mandar M. Deshmukh

Nature Materials https://www.nature.com/articles/s41563-025-02252-4  (2025)

• Quantum Geometric Moment Encodes Stacking Order of Moiré Matter

Surat Layek, Subhajit Sinha, Atasi Chakraborty, Ayshi Mukherjee, Heena Agarwal, Kenji Watanabe, Takashi Taniguchi, Amit Agarwal, Mandar M. Deshmukh

Advanced Materials   (2025)

https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202417682

• Sensing Vibrations using Quantum Geometry of Electrons

Bhuvaneswari R, Mandar M Deshmukh, Umesh V Waghmare

Phys. Rev. B 110, 014305 (2024).

• Pick-up and assembling of chemically sensitive van der Waals heterostructures using dry cryogenic exfoliation

Vilas Patil, Sanat Ghosh, Amit Basu, Kuldeep, Achintya Dutta, Khushabu Agrawal, Neha Bhatia, Amit Shah, Digambar A. Jangade, Ruta Kulkarni, A. Thamizhavel & Mandar M. Deshmukh 

Scientific Reports volume 14, 11097 (2024).

• Tunable moiré materials for probing Berry physics and topology

Pratap Chandra Adak, Subhajit Sinha, Amit Agarwal & Mandar M. Deshmukh

Nature Reviews Materials volume 9, 481 (2024). 

• Superconducting Cavity-Based Sensing of Band Gaps in 2D Materials

Krishnendu Maji, Joydip Sarkar, Supriya Mandal, Sriram H., Mahesh Hingankar, Ayshi Mukherjee, Soumyajit Samal, Anirban Bhattacharjee, Meghan P. Patankar, Kenji Watanabe, Takashi Taniguchi, and Mandar M. Deshmukh*

Nano Letters  24, 4369 (2024).  

• High-temperature Josephson diode

Sanat Ghosh, Vilas Patil, Amit Basu, Kuldeep, Achintya Dutta, Digambar A. Jangade, Ruta Kulkarni, A. Thamizhavel, Jacob F. Steiner, Felix von Oppen, Mandar M. Deshmukh

Nature Materials 23, 612 (2024) . 

• Perpendicular electric field drives Chern transitions and layer polarization changes in Hofstadter bands

Pratap Chandra Adak , Subhajit Sinha ,  Debasmita Giri ,  Dibya Mukherjee , Chandan   , L. D. Varma Sangani ,  Surat Layek ,  Ayshi Mukherjee ,  Kenji Watanabe ,  Takashi Taniguchi ,  Herbert Fertig ,  Arijit Kundu, Mandar M. Deshmukh

Nature Communications 13, 7781 (2022) 

• Quantum noise limited microwave amplification using a graphene Josephson junction

Joydip Sarkar, Kishor V. Salunkhe, Supriya Mandal, Subhamoy Ghatak, Alisha H. Marchawala, Ipsita Das, Kenji Watanabe, Takashi Taniguchi, R. Vijay, Mandar M. Deshmukh

Nature Nanotechnology volume 17, 1147–1152 (2022).

Our work featured in a News and Views article in Nature Nanotechnology

• Nanowire bolometer using a 2D high-temperature superconductor

Sanat Ghosh,  Digambar A Jangade, Mandar M. Deshmukh

Nanotechnology 34 , 015304  (2023).

• Simple solids can mimic complex electronic states  (a News and Views article)

Mandar M. Deshmukh

Nature 609, 470-471 (2022).

• Nonlinear anomalous Hall effects probe topological phase-transitions in twisted double bilayer graphene

Atasi Chakraborty, Kamal Das, Subhajit Sinha, Pratap Chandra Adak, Mandar M. Deshmukh, Amit Agarwal

2D Materials 9 045020 (2022).

• Berry curvature dipole senses topological transition in a moiré superlattice

Subhajit Sinha, Pratap Chandra Adak, Atasi Chakraborty, Kamal Das, Koyendrila Debnath, L. D. Varma Sangani, Kenji Watanabe, Takashi Taniguchi, Umesh V. Waghmare, Amit Agarwal, Mandar M. Deshmukh 

arXiv:2204.02848 and https://www.nature.com/articles/s41567-022-01606-y  Nature Physics 18, 765 (2022). 

An article about our work in phys.org The direct detection of a topological phase transition through a sign change in the Berry curvature dipole

• Dynamics of Interfacial Bubble Controls Adhesion Mechanics in Van der Waals Heterostructure

L. D. Varma Sangani, Supriya Mandal, Sanat Ghosh, Kenji Watanabe, Takashi Taniguchi, and Mandar M. Deshmukh

Nano Letters doi: 10.1021/acs.nanolett.1c04341 (2022).

• Superconducting Vortex-Charge Measurement Using Cavity Electromechanics

Sudhir Kumar Sahu, Supriya Mandal, Sanat Ghosh, Mandar M. Deshmukh, and Vibhor Singh

Nano Letters 22, 4, 1665–1671 (2022). doi:10.1021/acs.nanolett.1c04688 

• Nanoscale devices with superconducting electrodes to locally channel current in 3D Weyl semimetals

Biswajit Datta, Jaykumar Vaidya, Subhamoy Ghatak,  Raghav Dhingra,  Rajib Mondal,  John Jesudasan,  A. Thamizhavel, and  Mandar M. Deshmukh

Appl. Phys. Lett. 119, 133501 (2021). doi: 10.1063/5.0067684

• Coplanar cavity for strong coupling between photons and magnons in van der Waals antiferromagnet 

 Supriya Mandal*,  Lucky N. Kapoor*,  Sanat Ghosh,  John Jesudasan,  Soham Manni,  A. Thamizhavel,  Pratap Raychaudhuri,  Vibhor Singh, and  Mandar M. Deshmukh

Appl. Phys. Lett. 117, 263101 (2020). doi: 10.1063/5.0029112 

• Observation of standing spin-wave modes in a van der Waals magnetic material

Lucky N. Kapoor*, Supriya Mandal*,  Pratap Chandra Adak, Meghan Patankar, Soham Manni, A. Thamizhavel, Mandar M. Deshmukh

Advanced Materials 33, 2005105 (2021).   doi: 10.1002/adma.202005105

• Bulk valley transport and Berry curvature spreading at the edge of flat bands

Subhajit Sinha*, Pratap Chandra Adak*, R.S. Surya Kanthi, Bheema Lingam Chittari, L. D. Varma Sangani, Kenji Watanabe, Takashi Taniguchi, Jeil Jung, Mandar M. Deshmukh

Nature Communications, 11, 5548 (2020).  doi: 10.1038/s41467-020-19284-w

• On-demand local modification of high-Tc superconductivity in few unit-cell thick Bi2Sr2CaCu2O(8+x)

Sanat Ghosh, Jaykumar Vaidya, Sawani Datta, Ram Prakash Pandeya, Digambar A Jangade, Ruta N Kulkarni, Kalobaran Maiti, A Thamizhavel, Mandar M Deshmukh 

Advanced Materials 32, 2002220 (2020). doi:10.1002/adma.202002220

• Facile deterministic cutting of 2D materials for twistronics using a tapered fibre scalpel

L.D. Varma Sangani, R.S. Surya Kanthi, Pratap Chandra Adak, Subhajit Sinha, Alisha H. Marchawala, Takashi Taniguchi, Kenji Watanabe, Mandar M. Deshmukh

 Nanotechnology 31, 32LT02 (2020) .   doi: 10.1088/1361-6528/ab8b93

video 1 , video 2 

• Tunable bandwidths and gaps in twisted double bilayer graphene system on the verge of correlations

Pratap Chandra Adak*, Subhajit Sinha*, Unmesh Ghorai, L. D. Varma Sangani, Kenji Watanabe, Takashi Taniguchi, Rajdeep Sensarma, Mandar M. Deshmukh 

Phys. Rev. B 101, 125428 (2020). doi:10.1103/PhysRevB.101.125428

• Non-trivial quantum oscillation geometric phase shift in a trivial band

Biswajit Datta, Pratap Chandra Adak, Li-kun Shi, Kenji Watanabe, Takashi Taniguchi, Justin C. W. Song, Mandar M. Deshmukh 

Science Advances  5,  eaax6550 (2019).  doi:0.1126/sciadv.aax6550 

• Elastic properties of few unit cell thick superconducting crystals of  Bi2Sr2CaCu2O8+δ

Sudhir Kumar Sahu, Digambar Jangade, Arumugam Thamizhavel, Mandar M. Deshmukh, Vibhor Singh

Applied Physics Letters 115, 143102 (2019) .   doi:10.1063/1.5121490 

• Nanoelectromechanical resonators from high-Tc superconducting crystals of Bi2Sr2Ca1Cu2O8+δ

Sudhir Kumar Sahu, Jaykumar Vaidya, Felix Schmidt, Digambar Jangade, Arumugam Thamizhavel, Gary Steele, Mandar M. Deshmukh, Vibhor Singh 

2D Materials, 6,  025027  (2019) .  doi:10.1088/2053-1583/ab0800 

• Landau level diagram and the continuous rotational symmetry breaking in trilayer graphene

Biswajit Datta, Hitesh Agarwal, Abhisek Samanta, Amulya Ratnakar, Kenji Watanabe, Takashi Taniguchi, Rajdeep Sensarma, and Mandar M. Deshmukh

Physical  Review  Letters 121, 056801 (2018).  doi:10.1103/PhysRevLett.121.056801   

• Tension mediated nonlinear coupling between orthogonal mechanical modes of nanowire resonators

John P. Mathew, Anand Bhushan, and Mandar M.Deshmukh

Solid State Communications 282, 17-20, (2018).   doi:10.1016/j.ssc.2018.07.009   

• Abrupt p-n junction using ionic gating at zero-bias in bilayer graphene

Sameer Grover, Anupama Joshi, Ashwin Tulapurkar and Mandar M. Deshmukh

Scientific Reports 7, 3336 (2017).  doi:10.1038/s41598-017-03264-0   

• Growth of high-quality BSCCO whiskers and electrical properties of resulting exfoliated flakes

Apoorv Jindal, Digambar A. Jangade, Nikhil Kumar, Jaykumar Vaidya, Ipsita Das, Rudheer Bapat, Jayesh Parmar, Bhagyashree A. Chalke, Arumugam Thamizhavel and Mandar M. Deshmukh

Scientific Reports 7, 3295 (2017).  doi:doi:10.1038/s41598-017-03408-2   

• Strong electronic interaction and multiple quantum Hall ferromagnetic phases in trilayer graphene

Biswajit Datta, Santanu Dey, Abhisek Samanta, Hitesh Agarwal, Abhinandan Borah, Kenji Watanabe, Takashi Taniguchi, Rajdeep Sensarma, and Mandar M. Deshmukh,

Nature Communications 8, 14518 (2017).  doi:10.1038/ncomms14518  

• Dynamical strong coupling and parametric amplification of mechanical modes of graphene drums

John P Mathew, Raj Patel, Abhinandan Borah, R. Vijay, Mandar M Deshmukh

Nature Nanotechnology 11, 747 (2016)   doi:10.1038/nnano.2016.94  

• Low tension graphene drums for electromechanical pressure sensing

Raj Patel, John P Mathew, Abhinandan Borah, Mandar M Deshmukh

2D Materials, 3, 011003 (2016).   doi:10.1088/2053-1583/3/1/011003   

• Nanoscale electromechanics to measure thermal conductivity, expansion and interfacial losses

John P Mathew, Raj Patel, Abhinandan Borah, Carina B Maliakkal, TS Abhilash, Mandar M Deshmukh

Nano Letters, 15, 7621 (2015).  doi:10.1021/acs.nanolett.5b03451   

• Fabrication and characterization of GaN nanowire doubly clamped resonators

Carina B Maliakkal, John P Mathew, Nirupam Hatui, A Azizur Rahman, Mandar M Deshmukh, Arnab Bhattacharya

Journal of Applied Physics 118, 114301 (2015).  doi:10.1063/1.4930088   

• Quantum Hall effect in tunable 1-D lateral superlattice in graphene--role of crossed electric and magnetic fields

Sudipta Dubey, and Mandar M. Deshmukh

Solid State Communications , Volumes 237–238, 59, (2016).  doi:10.1016/j.ssc.2016.03.024   

• Carrier Transport in High Mobility InAs Nanowire Junctionless Transistors

Aniruddha Konar, John Mathew, Kaushik Nayak, Mohit Bajaj, Rajan K. Pandey, Sajal Dhara, K. V. R. M. Murali, and Mandar M. Deshmukh

Nano Letters, 15,1684 (2015).  doi:10.1021/nl5043165   

• Limits on the bolometric response of graphene due to flicker noise

Sameer Grover, Sudipta Dubey, John P. Mathew, and Mandar M. Deshmukh

Applied Physics  Letters 106, 051113 (2015).  doi:10.1063/1.4907925   

• Light matter interaction in WS2 nanotube-graphene hybrid devices

John Mathew , Gobinath Jegannathan , Sameer Grover , Pratiksha D. Dongare , Rudheer D. Bapat , Bhagyashree A. Chalke , Shashank C Purandare , Mandar M. Deshmukh

Applied Physics Letters 105, 223502 (2014).  doi:10.1063/1.4902983  

• Schottky barrier heights for Au and Pd contacts to MoS2

Naveen Kaushik, Ankur Nipane, Firdous Basheer, Sudipta Dubey, Sameer Grover, Mandar M. Deshmukh and Saurabh Lodha,

Applied Physics Letters 105, 113505 (2014).  doi:10.1063/1.4895767   

• A facile process for soak-and-peel delamination of CVD graphene from substrates using water

Priti Gupta, Pratiksha D. Dongare, Sameer Grover, Sudipta Dubey, Hitesh Mamgain, Arnab Bhattacharya, and Mandar M. Deshmukh

Scientific Reports 4, 3882 (2014).  doi:10.1038/srep03882   

• Free-standing semipolar III-nitride quantum well structures grown on chemical vapor deposited graphene layers

Priti Gupta, A. A. Rahman, Nirupam Hatui, Jayesh B. Parmar, Bhagyashree A. Chalke, Rudheer D. Bapat, S. C. Purandare, Mandar M. Deshmukh and Arnab Bhattacharya,

Applied Physics Letters 103, 181108 (2013) . doi:10.1063/1.4827539   

• Dynamically Tracking the Strain Across the Metal–Insulator Transition in VO2 Measured Using Electromechanical Resonators

Pritesh Parikh, Chitraleema Chakraborty, T. S. Abhilash, Shamashis Sengupta, Chun Cheng, Junqiao Wu, and Mandar M. Deshmukh

Nano Letters,13, 4685 (2013).  doi:10.1021/nl402116f   

• Tunable Superlattice in Graphene To Control the Number of Dirac Points

Sudipta Dubey, Vibhor Singh, Ajay K. Bhat, Pritesh Parikh, Sameer Grover, Rajdeep Sensarma, Vikram Tripathi, K. Sengupta, and Mandar M. Deshmukh

Nano Letters, 13, 3990 (2013).  doi:10.1021/nl4006029   

• Plasmon mode modifies the elastic response of a nanoscale charge density wave system

Shamashis Sengupta, Niveditha Samudrala, Vibhor Singh, Arumugam Thamizhavel, Peter B. Littlewood, Vikram Tripathi, and Mandar M. Deshmukh

Physical Review Letters 110, 166403 (2013).   doi:10.1103/PhysRevLett.110.166403   

• MOVPE growth of semipolar III-nitride semiconductors on CVD graphene

Priti Gupta, A.A. Rahman, Nirupam Hatui, M.R. Gokhale, Mandar M. Deshmukh, Arnab Bhattacharya

Journal of Crystal Growth, 372, 105, (2013).  doi:10.1016/j.jcrysgro.2013.03.020   

• (Book Chapter) Suspended Graphene Devices for Nanoelectromechanics and for the Study of Quantum Hall Effect

Vibhor Singh, Mandar M. Deshmukh

Chapter 6 of Graphene: Synthesis, Properties, and Phenomena; Edited by Prof. C. N. R. Rao, Prof. A. K. Sood   doi: 10.1002/9783527651122.ch6   

• Wide Bandwidth Nanowire Electromechanics on Insulating Substrates at Room Temperature

T. S. Abhilash, John P. Mathew, Shamashis Sengupta, M. R. Gokhale, Arnab Bhattacharya, and Mandar M. Deshmukh

Nano Letters, 12,6432 (2012).   doi:10.1021/nl303804e   

• Compact, inexpensive coaxial terminations and wiring for low temperature RF applications

E. Smith , R. De Alba , N. Zhelev , R. Bennett , V.P. Adiga , H.S. Solanki , V. Singh , M.M. Deshmukh and J.M. Parpia

Cryogenics 52, 461–464 (2012).   doi:10.1016/j.cryogenics.2012.05.001   

• Coupling between quantum Hall state and electromechanics in suspended graphene resonator

Vibhor Singh, Bushra Irfan, Ganesh Subramanian, Hari S. Solanki, Shamashis Sengupta, Sudipta Dubey, Anil Kumar, S. Ramakrishnan and Mandar M. Deshmukh

Applied Physics Letters ,100, 233103 (2012).   doi:10.1063/1.3703763   

• Dense Electron System from Gate-Controlled Surface Metal–Insulator Transition

Kai Liu , Deyi Fu , Jinbo Cao , Joonki Suh , Kevin X. Wang , Chun Cheng , D. Frank Ogletree , Hua Guo , Shamashis Sengupta , Asif Khan , Chun Wing Yeung , Salahuddin Sayeef , Mandar M. Deshmukh , and Junqiao Wu

Nano Letters, 12, 6272 (2012).   doi:10.1021/nl303379t   

• High Q electromechanics with InAs nanowire quantum dots

Hari S. Solanki , Shamashis Sengupta , Sudipta Dubey , Vibhor Singh , Sajal Dhara , Anil Kumar , Arnab Bhattacharya , S. Ramakrishnan , Aashish Clerk Mandar M. Deshmukh

Applied Physics Letters 99, 213104 (2011).   doi:10.1063/1.3663631   

• Dual top gated graphene transistor in the quantum Hall regime

Ajay K Bhat , Vibhor Singh , Sunil Patil, Mandar M. Deshmukh

Solid State Communications 152, 545–548 (2012).   doi:10.1016/j.ssc.2011.12.030   

• Field-effect modulation of conductance in VO2 nanobeam transistors with HfO2 as the gate dielectric

Shamashis Sengupta, Kevin Wang, Kai Liu, Ajay K. Bhat, Sajal Dhara, Junqiao Wu, Mandar M. Deshmukh

Applied Physics Letters 99, 062114 (2011).   doi:10.1063/1.3624896   

• Facile fabrication of lateral nanowire wrap-gate devices with improved performance

Sajal Dhara, Shamashis Sengupta, Hari S. Solanki, Arvind Maurya, Arvind Pavan R., M. R. Gokhale, Arnab Bhattacharya, Mandar M. Deshmukh

Applied Physics Letters 99, 173101 (2011).   doi:10.1063/1.3634010   

Featured in Nature News and Views, Nature 481, 152 (2012).

• Tunable thermal conductivity in defect engineered nanowires at low temperatures

Sajal Dhara, Hari S. Solanki, Arvind Pawan R., Vibhor Singh, Shamashis Sengupta, B.A. Chalke, Abhishek Dhar, Mahesh Gokhale, Arnab Bhattacharya, Mandar M. Deshmukh

Physical Review B 84, 121307 (2011).   doi:10.1103/PhysRevB.84.121307   

• (Popular science article meant for undergraduates) Graphene - An Exciting Two-Dimensional Material for Science and Technology

Mandar Deshmukh, and Vibhor Singh

Resonance, 16, 238 (2011).   doi:10.1007/s12045-011-0029-9   

• (Conference Proceedings) Suspended graphene devices for electromechanics and quantum Hall effect (QHE) studies

Vibhor Singh, Ganesh Subramaniam, Bushra Irfan and Mandar M. Deshmukh

AIP Conf. Proc. 1349, 15 (2011).   doi:10.1063/1.3605727   

• Nanoscale electromechanical resonators as probes of the charge density wave transition in NbSe2

Shamashis Sengupta, Hari S. Solanki, Vibhor Singh, Sajal Dhara and Mandar M. Deshmukh

Physical Review B 82, 155432 (2010).   doi:10.1103/PhysRevB.82.155432   

• Probing thermal expansion of graphene and modal dispersion at low temperature using graphene NEMS resonators

Vibhor Singh, Shamashis Sengupta, Hari S. Solanki, Rohan Dhall, Adrien Allain, Sajal Dhara, Prita Pant and Mandar M. Deshmukh

Nanotechnology, 21,   165204 (2010). doi:10.1088/0957-4484/21/16/165204   

• Tuning mechanical modes and infuence of charge screening in nanowire resonators

Hari S. Solanki, Shamashis Sengupta, Sajal Dhara, Vibhor Singh, Sunil Patil, Rohan Dhall, Jeevak Parpia, Arnab Bhattacharya, and Mandar M. Deshmukh

Physical Review B,  81, 115459  (2010).  doi:10.1103/PhysRevB.81.115459   

• Non-equilibrium breakdown of quantum-Hall state in graphene

Vibhor Singh and Mandar M. Deshmukh

Physical Review B 80, 081404R (2009) . doi:10.1103/PhysRevB.80.081404  

• Magnetotransport properties of individual InAs nanowires

Sajal Dhara, Hari S. Solanki, Vibhor Singh, Arjun Narayanan, Prajakta Chaudhari, Mahesh Gokhale, Arnab Bhattacharya, and Mandar M. Deshmukh

Physical Review B 79, 121311R (2009)  doi:10.1103/PhysRevB.79.121311