Welcome to Dr. Aquil Ahmad's Homepage!
Next-Gen Spintronics & Quantum Computing
Next-Gen Spintronics & Quantum Computing
Dr. Aquil Ahmad, PhD
PhD (Physics) from Indian Institute of Technology (IIT) Kharagpur
Email: aquil.sahjara@gmail.com or ahmad@physik.uni-kiel.de
November 2024~ : Marie Skłodowska-Curie (MSCA) Postdoctoral Researcher
Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
August 2024~ October 2024: HKUST-Postdoctoral Fellow
Department of Electronic and Computer Engineering,
The Hong Kong University of Science and Technology (HKUST), Hong Kong
August 2023~ Jully 2024: NSTC-Postdoctoral Research Fellow
Department of Physics,
National Changhua University of Education, Taiwan
Advisor: Prof. Jyh-Pin Chou
February 2022~July 2023: MOST-Postdoctoral Research Scientist
Department of Physics,
National Changhua University of Education, Taiwan
Advisor: Prof. Chia-Jye Liu (Distinguished Professor)
August 2021-December 2021: Assistant Professor Research
Department of Physics,
School of Electrical and Electronics Engineering,
SASTRA Deemed University, Tamil Nadu India.
February 2021-August 2021: Research Associate
Department of Physics
Indian Institute of Technology Kharagpur (IIT-Kharagpur)
Advisor: Prof. Amal Kumar Das
Let's change the world together for the better!
"Discovery consists of seeing what everyone has seen, and thinking what no one has thought"- Albert Szent-Gyorgi (1932 Nobel Laureate)
“Machine intelligence is the last invention that humanity will ever need to make.” - Nick Bostrom
Dr. Aquil Ahmad is an experimental and theoretical quantum physicist. His current research interests include, but are not limited to, molecular engineering on superconducting surfaces, Yu-Shiba-Rusinov (YSR) states, scanning tunneling spectroscopy (STS), and density functional theory (DFT) modeling to support experimental results. Previously, Dr. Ahmad has worked on a range of topics in thermoelectricity, nanomagnetism, and spintronics. He earned his Ph.D. in Physics from India’s premier research institute, the Indian Institute of Technology Kharagpur (IIT-KGP), in 2021. At IIT-KGP, he developed highly spin-polarized half-metallic nanomaterials and thin films for spintronic applications such as magnetic tunnel junctions (MTJ) and non-volatile magnetoresistive random-access memory (MRAM). Dr. Ahmad employed a wide range of experimental techniques to study the structural, magnetic, transport, and caloric properties of these materials. His specialization in nanomaterial synthesis and characterization, thin-film fabrication, and DFT computations has enabled him to make significant contributions to the field of spintronics.
After completing his Ph.D., he joined SASTRA Deemed University as an Assistant Professor Research, where he was awarded the prestigious and highly competitive National Postdoctoral Fellowship (NPDF) from the Science and Engineering Research Board (SERB) under the Department of Science and Technology (DST), Government of India. This fellowship was intended for research on Weyl semimetals for topo-spintronics in the Department of Physics at the Indian Institute of Science Education and Research (IISER), Pune. At the same time, he was also offered a postdoctoral fellowship sponsored by the Ministry of Science and Technology (MOST), Taiwan. Dr. Ahmad declined the NPDF offer in favor of the MOST fellowship, choosing to work on thermoelectric materials in the group of the distinguished Prof. Chia-J. Liu in the Department of Physics at the National Changhua University of Education (NCUE), Taiwan. After successfully completing this project, he was awarded a second postdoctoral fellowship in 2023 by the National Science and Technology Council of Taiwan to continue his research at the same institute with Prof. Jyh-Pin Chou’s group.
In 2024, Dr. Ahmad joined one of the highest-ranked and globally recognized institutions in Hong Kong—The Hong Kong University of Science and Technology (HKUST)—to work on spin-orbit torque manipulation and its applications in spin logic devices and chips under the supervision of Prof. Qiming Shao. Shortly thereafter, he was awarded the prestigious Marie Skłodowska-Curie Actions (MSCA) cofund fellowship by the European Commission’s (EU) Horizon Europe programme. As part of this fellowship, he is currently working with Dr. Alexander Weismann and Prof. Richard Berndt’s group at the Institut für Experimentelle und Angewandte Physik, Kiel Nano, Surface and Interface Science (KINSIS), Christian-Albrechts-Universität zu Kiel, Germany. He is leading a project titled “Unlocking Quantum Potential: Investigations of Yu-Shiba-Rusinov (YSR) States in Molecular Systems on Superconductors.” This project involves hands-on experience with versatile UHV systems such as scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS), focusing on the quantum properties and manipulation of molecular systems on surfaces, complemented by DFT-based modeling.
Dr. Ahmad has also served as an Organizing Committee Member for the "IEEE Around-the-Clock Around-the-Globe Magnetics Conference 2023" organized by the IEEE Magnetics Society. He was Guest Editor for a special issue titled “New Insights in Nanomanufacturing Polymer-Based Materials: From Synthesis to Applications” in the journal Nanomanufacturing, and Assistant Guest Editor for the special issue “Nanostructured Thermoelectric Materials” in the journal Nanomaterials.
He is the recipient of several awards and highly competitive research grants and maintains active collaborations with internationally recognized research groups.
Research Interests
Dr. Ahmad's current research focuses on Yu-Shiba-Rusinov (YSR) states — sub-gap bound states that bridge superconductivity, magnetism, and topology. These states arise from the interaction of magnetic impurities with a superconducting host and can be detected via Scanning Tunneling Spectroscopy (STS).
In parallel with experimental investigations, He employ ab initio Density Functional Theory (DFT) computations to unravel the fundamental physics underlying these quantum systems. By leveraging advanced computational methods, He explore material behaviors at the atomic, molecular, and electronic levels, yielding precise predictions and insightful interpretations. This multifaceted approach—merging state-of-the-art experiments with rigorous computational modeling and data-driven analyses—facilitates both theoretical breakthroughs and practical innovations. Ultimately, his work is driving the design of next-generation quantum materials and devices, paving the way for transformative applications in molecular electronics, data storage, quantum computing, and beyond
His research focuses on several key areas, including:
Next Generation Spintronics & Quantum Computing.
Spinterface science.
Quantum properties of molecules adsorbed on superconducting surfaces.
Yu-Shiba-Rusinov (YSR) states.
Molecular engineering.
Quantum Spin.
Scanning Tunneling Microscopy & Spectroscopy (STM/STS).
Quantum simulation.
2D and AFM magnetic tunnel junctions (MTJ).
Strong electronic correlation and spin-orbit interactions in quantum materials.