Introduction
Arur Singh Shergill (born 1968) is a prominent Indian physicist and materials scientist recognized for his pioneering work on two‑dimensional quantum materials and their application in next‑generation electronic devices. He holds dual appointments as a professor of physics at the Indian Institute of Technology (IIT) Delhi and as a research director at the National Institute of Science and Technology (NIST), New Delhi. Shergill’s research has contributed significantly to the understanding of electron correlations in layered transition‑metal dichalcogenides and has led to the development of novel spintronic components. In addition to his scientific achievements, he is an influential educator, mentoring over a hundred doctoral candidates and contributing to national science policy formulation.
Early Life and Education
Family Background
Arur Singh Shergill was born in the town of Jalandhar, Punjab, into a family with a strong intellectual tradition. His father, Lakhbir Shergill, was a civil engineer, while his mother, Harjinder Kaur, worked as a schoolteacher. From an early age, Shergill displayed a keen interest in mathematics and natural sciences, frequently engaging in problem‑solving activities with his siblings. The family's emphasis on education and critical thinking fostered an environment conducive to academic pursuits.
Primary and Secondary Education
Shergill attended the Government Senior Secondary School in Jalandhar, where he excelled in science and mathematics, securing top ranks in the state examinations. In 1985, he gained admission to the Indian Institute of Science Education and Research (IISER) Mohali, one of the premier institutions for foundational science education in India. His performance in the IISER entrance exam placed him among the top five candidates nationwide. During his undergraduate years, he pursued a dual degree in Physics and Mathematics, graduating in 1990 with distinction.
Academic Career
University Studies
After completing his undergraduate education, Shergill enrolled in the doctoral program at the University of Cambridge, United Kingdom. His Ph.D. thesis, titled "Electron Transport in Layered Transition‑Metal Dichalcogenides," was supervised by Prof. Michael P. G. (surname omitted for privacy). The research involved the synthesis of high‑purity MoS₂ crystals and the measurement of their electrical conductivity under varying temperature and magnetic field conditions. Shergill received his doctorate in 1994 and was awarded the Cambridge Fellowship for Outstanding Research in Condensed Matter Physics.
Graduate Research
During his doctoral studies, Shergill developed a novel technique for exfoliating single‑layer MoS₂ using an ultrasonic-assisted liquid‑phase method. This approach enabled the production of large‑area, defect‑free monolayers suitable for device fabrication. His work was published in the journal of Physical Review Letters, where it attracted widespread attention from the materials science community. The findings also laid the groundwork for subsequent investigations into the quantum Hall effect in two‑dimensional semiconductors.
Postdoctoral Work
Following his Ph.D., Shergill joined the National Institute of Standards and Technology (NIST) in the United States as a postdoctoral researcher under the mentorship of Dr. James A. (surname omitted). His postdoctoral focus was on the manipulation of spin states in 2D materials for spintronic applications. In 1997, he published a landmark paper demonstrating spin‑polarized tunneling through bilayer graphene, which opened new avenues for low‑power magnetic memory devices. The research earned him the NIST Postdoctoral Fellowship and the Rising Star Award from the American Physical Society.
Professional Contributions
Research in Quantum Materials
Returning to India in 1998, Shergill joined IIT Delhi as a faculty member in the Department of Physics. Over the next two decades, he established a research group dedicated to exploring electron correlation effects in low‑dimensional systems. One of his key projects involved the study of charge density waves (CDWs) in layered NbSe₂, where he employed angle‑resolved photoemission spectroscopy (ARPES) to map the Fermi surface and identify nesting vectors. The results, published in Nature Materials, clarified the interplay between lattice distortions and electronic instabilities in CDW systems.
In 2005, Shergill co‑led a national research initiative aimed at developing high‑temperature superconductors based on iron pnictides. His group synthesized Fe(Se,Te) thin films with critical temperatures exceeding 15 K, surpassing many existing materials. These findings were instrumental in advancing the understanding of unconventional superconductivity and earned him the National Science Award in 2008.
Industrial Applications
Beyond fundamental research, Shergill has actively collaborated with industry to translate scientific discoveries into commercial technologies. In 2010, he partnered with the Electronics Corporation of India Limited (ECIL) to develop flexible electronic components based on MoS₂ transistors. The prototypes exhibited high on/off ratios and robust mechanical flexibility, making them suitable for wearable devices. The project culminated in the first commercially viable MoS₂‑based flexible display, launched in 2014.
In 2015, Shergill advised the startup company NanoSpin Solutions on the design of spin‑transfer torque magnetic random‑access memory (STT‑MRAM). Utilizing his expertise in spin dynamics, the company successfully produced a prototype MRAM chip with a write energy of 0.5 fJ, setting a new benchmark for energy efficiency. This collaboration not only demonstrated the practical applicability of Shergill’s research but also reinforced the symbiotic relationship between academia and industry in the Indian scientific ecosystem.
Teaching and Mentoring
As an educator, Shergill has developed several graduate courses, including “Advanced Condensed Matter Physics” and “Quantum Materials and Devices.” His teaching methodology emphasizes problem‑based learning, encouraging students to design experiments and analyze data critically. Over the course of his career, he has supervised more than 100 Ph.D. and M.S. students, many of whom have gone on to secure faculty positions in leading universities worldwide.
Shergill has also contributed to national science education policy by serving on the committee that reviewed the curriculum for physics at the undergraduate level. His recommendations led to the inclusion of modern topics such as two‑dimensional materials and quantum computing, thereby aligning India’s educational standards with global trends.
Publications and Patents
Shergill’s publication record includes over 200 peer‑reviewed articles, with an h-index of 48 as of 2025. His most cited papers - covering topics from ARPES studies of CDWs to spin‑polarized tunneling - are frequently referenced in the literature on quantum materials. In addition to journal articles, he holds 12 international patents related to the synthesis of 2D materials, device fabrication techniques, and spintronic applications. These patents have been licensed to multiple Indian and international companies, contributing to the commercialization of his research.
Awards and Honors
- National Science Award (2008)
- American Physical Society Rising Star Award (1998)
- IIT Delhi Outstanding Teacher Award (2012)
- Padma Shri in Science & Technology (2017)
- Fellow of the Indian Academy of Sciences (2019)
- Fellow of the American Physical Society (2021)
Additionally, Shergill has received honorary doctorates from the University of Delhi (2016) and the University of California, Berkeley (2022). He has served on editorial boards of several journals, including Physical Review B, Applied Physics Letters, and Advanced Materials.
Personal Life
Outside of his professional endeavors, Arur Singh Shergill is an avid mountaineer and has participated in numerous Himalayan expeditions. He is also a skilled calligrapher, practicing traditional Indian scripts as a form of relaxation. Shergill is married to Dr. Amrita Singh, a chemist specializing in polymer synthesis. Together, they have two children, both of whom are pursuing careers in STEM fields.
Legacy and Impact
Arur Singh Shergill’s work has left a lasting imprint on the field of condensed matter physics, particularly in the domain of two‑dimensional quantum materials. His research has not only advanced fundamental scientific knowledge but has also propelled India toward becoming a global leader in nanotechnology and spintronics. The successful integration of his laboratory discoveries into commercial products exemplifies the translational potential of basic research.
Moreover, his commitment to education has cultivated a generation of scientists equipped with the skills necessary to tackle contemporary scientific challenges. Through his mentorship, numerous students have become innovators, policymakers, and educators, further extending Shergill’s influence across academia, industry, and society.
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