Riju Pal - Research

"Life is like riding a bicycle, to keep your balance you must keep moving" - Albert Einstein.

Research

At a glance:

My research interests are centered on the low-temperature electro-transport and magneto-transport study of van der Waals layered magnetic materials and their heterostructures. Additionally, I investigate the transport properties of emerging low-dimensional superconducting materials. I also study electron spin resonance (ESR) spectroscopy in emerging low-dimensional magnetic materials.

I have significant expertise in handling cryogenic millikelvin (mK) systems, device fabrication in the clean room, dry-transfer of 2D flakes, assembling heterostructures, and performing various measurement techniques, including anomalous Hall effect, magnetoresistance, micro-Raman spectroscopy, and electron spin resonance spectroscopy. I have received multiple research awards and travel grants for presenting my work at international conferences.

Present Lab:

Magnetic Resonance Group

IFW Institute for Solid State Research, IFW Dresden, Germany

Current Project:

Electron spin resonance (ESR) spectroscopy in emerging low-dimensional magnetic materials
Electrically detected electron spin resonance (ED-ESR) spectroscopy

Latest Lab:

Atin PAL's Group (2018-2025)

Quantum Transport and Device Lab

S. N. Bose National Centre for Basic Sciences, Kolkata, West Bengal, India

Topics of Interest:

Charge/Spin transport in emerging new low-dimensional van der Waals materials (like Graphene, TMDC, Fe3GeTe2, Fe4GeTe2, Cr2Ge2Te6, etc.)
Charge and spin-transport in 2D ferromagnetic materials and their heterostructures.
Magneto-transport at low temperature (down to ~ mK)
2D Ferromagnet
Superconductivity in emerging low-dimensional materials.
Nanotechnology & Nanoscience
Condensed Matter Physics & Material Sciences

News and Events

Material Fe4GeTe2: Surprising magnetic anisotropy of the quasi-2D van der Waals ferromagnet Fe4GeTe2 (Highlights in the Annual Report 2024 (Page 46) of IFW Dresden, Germany)
Finalist in the Best Student Oral Presentation Award and Neil Smith Award at the IEEE International Magnetics Conference (INTERMAG 2024), held in Rio de Janeiro, Brazil, South America.
Received Best Poster Award (SNB News, SNB Twitter, SNB Facebook) at ICAM 2023 (International Conference on Advanced Materials: Properties and Applications), organized by the School of Physical and Applied Sciences and School of Chemical Sciences, Goa University, Goa, India.
NewsBreak - Superconductivity coexisting with ferromagnetism in a quasi-one-dimensional non-centrosymmetric (TaSe$_4$)$_3$I
Twitter - Superconductivity coexisting with ferromagnetism in a quasi-one-dimensional non-centrosymmetric (TaSe$_4$)$_3$I

Highlights

Research Experiences:

Aug 2021 - Present : Senior Research Fellow, S. N. Bose National Centre for Basic Sciences, Kolkata, India.

Thesis Topic: Transport Phenomena in Layered Magnetic and Superconducting Materials.

Aug 2019 - July 2021 : Junior Research Fellow, S. N. Bose National Centre for Basic Sciences, Kolkata, India.
Jan 2019 - May 2019 (Semester Project II) : Topic - “Fabrication and Characterization of Few-layer Graphene Field Effect Devices” [4 Months], under the supervision of Dr. Atindra Nath Pal , Assistant Professor, SNBNCBS, Kolkata.
Aug 2018 - Dec 2018 (Semester Project I) : Topic - “Developing Transport Measurement Set-up for Lithographic Devices” [4 Months], under the supervision of Dr. Atindra Nath Pal , Assistant Professor, SNBNCBS, Kolkata.
June 2018 - July 2018 (Summer Project) : Topic - “Photo-lithography on a Flexible Substrate” [8 Weeks], Under the guidance of Dr. Atindra Nath Pal, Assistant Professor, SNBNCBS, Kolkata.

Skills in:

Clean Room: Optical Lithography by Mask-Aligner (EMA-400), MJB4 (SUSS-Microtech), Laser-writer/Mask-less pattern-generator (LW-405D by MICRO-TECH), Wire Bonding, Wafer cleaning, Spin coating, Leica Optical Microscope, Oxygen Plasma (ICP-RIE) Etching, Profilometer (Alpha -Step D-600), Thermal Evaporator.
Instruments Expertise: Oxford Teslatron (300mK-300K, +-12T), PPMS (Quantum Design - 1.6K-400K, +-9T), 3K Setup CCR, 6K Cryostat, LHe Plant, Dipstick preparation, Temperature controller, Measurements by Source meter & Lock-in amplifier, VSM (Low-temperature), 2D Heterostructure/Transfer Set-up, Glove Box.
Basic knowledge in: Low-temperature electro-transport and magneto-transport measurements, Microfabrication & Material Characterization, Low-temperature physics & measurements, AFM, XRD analysis.