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Dr. L. D. Varma Sangani, Nano-Quantum Integrated Devices Lab (NQuID)

Assistant Professor

OfficeCASEST, University of Hyderabad, Gachibowli, Hyderabad, Telangana, India
Personal web pagehttps://casest.uohyd.ac.in/dr-ld-varma-sangani/
QualificationPh.D (University of Hyderabad)
Phone: , E-mail: sldvarma@uohyd.ac.in

Education

Professional Experience

  • Assistant Professor: Jan 2025 – to date, CASEST, University of Hyderabad, Hyderabad 500046, India
  • Postdoctoral Researcher: Oct 22 – Jan 2025, Aalto University, Puumiehenkuja 2,B, Espoo, 02150, Finland.
  • Postdoctoral Researcher: June 2018 – Aug 2022, Tata Institute of Fundamental Research, Old Navynagar, Mumbai 400005, India.

Research Areas

  1. Thinfilm &2D material-based electronic and optical devices like FETs, sensors, LEDs, and single-photon generators.
  2. RRAM for neuromorphic applications. Superconducting qubits and VLSI & FPGA design for quantum computing.

Member of Professional Bodies

  • Visitor, Aalto University, Finland: 01/2025 – to date

Publications

Google: https://scholar.google.co.in/citations?user=IfN6piUAAAAJ&hl=en

ORCID: https://orcid.org/0000-0002-0867-9447

2013

  • Mohiddon, M. A., L.D. Varma Sangani et al. Scanning near field optical microscopy of gold nano-disc arrays fabricated by electron beam lithography and their application as surface enhanced Raman scattering substrates. Chem. Phys. Lett. 588, 160 (2013)

2015

  • L.D. Varma Sangani et al. Low temperature Au induced crystallization of titanium dioxide thin films for resistive switching applications. RSC Adv. 5, 67493 (2015)

2016

  • L.D. Varma Sangani et al. Interfacial Electrode-Driven Enhancement of the Switching Parameters of a Copper Oxide-Based RRAMs. J. Electron. Mater. 45, 322 (2016)

2018

  • Vallabhapurapu, S., L.D. Varma Sangani et al. Resistive Switching Behaviour in PMMA Al:ZnO Composite Films. Acta Phys. Polonica, A. 134 (2018)
  • Rowtu, S., L.D. Varma Sangani et al. The Role of Work Function and Band Gap in Resistive Switching Behaviour of ZnTe Thin Films. J. Electron. Mater. 47 (2018)
  • Prasad, M. D., L.D. Varma Sangani et al. Single and twinned plates of 2D layered BiI3 for use as nanoscale pressure sensors. CrystEngComm 20, 4857–4866 (2018)

2019

  • L.D. Varma Sangani et al. Oxygen Affinity of Metal Electrodes as Control Parameter in Tuning the Performance of CuxO-Based RRAMs. Phys. Sta. Sol. A 216 (2019)

2020

  • L.D. Varma Sangani et al. Facile deterministic cutting of 2D materials for twistronics using a tapered fibre scalpel. Nanotechnology 31, 32LT02 (2020)
  • Adak P.C. et al. Tunable bandwidths and gaps in twisted double bilayer graphene on the verge of correlations. Phys. Rev. B 101, 125428 (2020)
  • Subhajit Sinha et al. Bulk valley transport and Berry curvature spreading at the edge of flat bands. Nature Communications 11, 5548 (2020)
  • L.D. Varma Sangani et al. arXiv preprint. arXiv:2011.00423 (2020)
  • L.D. Varma Sangani et al. Optical confinement in TiO2 waveguides fabricated by resist free electron beam lithography. Opt. Laser Technol. 123, 105901 (2020)

2021

  • Arun, N., L.D. Varma Sangani et al. Effects of swift heavy ion irradiation on the performance of HfO2-based RRAMs. J. Mater. Sci. Mater. Electron. 32 (2021)
  • V. S., L.D. Varma Sangani et al. Optical and resistive switching properties of Chitosan aluminum-doped zinc oxide composite thin films for transparent resistive random access memory application. J. Mater. Sci. Mater. Electron. 32, 3556–3565 (2021)

2022

  • L.D. Varma Sangani et al. Dynamics of Interfacial Bubble Controls Adhesion Mechanics in Van der Waals Heterostructure. Nano Letters 22, 9, 3612 (2022)
  • Subhajit Sinha et al. Superlattice Berry curvature dipole senses topological transition in a moiré. Nature Physics 18, 765 (2022)
  • Adak P.C. et al. Perpendicular electric field drives Chern transitions and layer polarization changes in Hofstadter bands. Nature Communications 13, 7781 (2022)

2024

  • Ayshi Mukherjee et al. Superconducting magic-angle twisted trilayer graphene hosts competing magnetic order and moiré inhomogeneities. arXiv preprint arXiv:2406.02521 (2024)

Conference Proceedings

  • Vallabhapurapu, S., Sangani, L. D. V. et al. Resistive switching in reduced graphene oxide incorporated polyvinyl alcohol films. Mater. Today: Proc. 9, 615–620 (2019).
  • Rajesh, Y., Sangani, L. D. V. et al. Visualizing the optical field strengths in Au/dielectric nanostructures and its correlation to SERS enhancements. In AIP Conference Proceedings, vol. 1832, 80086 (AIP Publishing LLC, 2017).
  • Shaik, U. P., Sangani, L. D. V., Gaur, A., Mohiddon, M. A. Krishna, M. G. Ag-ZnO nanostructure for ANTA explosive molecule detection. In AIP Conference Proceedings, vol. 1731, 80065 (AIP Publishing LLC, 2016).
  • Purkayastha, D. D., Sangani, L. D. V., Krishna, M. G. Madhurima, V. Photo-induced wettability of TiO 2 film with Au buffer layer. In AIP Conference Proceedings, vol. 1591, 881–883 (American Institute of Physics, 2014).

Thesis Guidance

  • M.tech. Thesis: Fabrication and characterization of resistive random access memory, K Vijaya Sri, University of Hyderabad(2014).
  • M.tech. Thesis: Studies on fabrication of ZnTe based resistive switching device, Rowtu Srinu, University of Hyderabad (2016).
  • Masters Thesis: Superconducting LED Light Sources based on 2D Materials, Marios Math eou, Department of Applied Physics, Aalto University (2023).
  • Bachelors Thesis: Electrical transport measurements in disordered graphite, Ilkka Per¨al¨a, Department of Applied Physics, Aalto University (2023).
  • SummerProjects: Correlated and topological behavior in pentalayer rhombohedral-stacked graphene, M. Vshunu Varma, Department of Applied Physics, Aalto University (2024).

Awards and Achievements

  • Goldmedalist in SSC (10th classs) for School 2nd in a government ZPH School.
  • EAMCET State Rank- 5427.
  • Qualified GATE– 2009
  • Selected for UGC– Basic Scientific Research fellowship (JRF/SRF) in the year of 2013.