Ahmet AVSAR | NUS Physics

Ahmet AVSAR

PhD, National University of Singapore (2014)

Assistant Professor

Email: aavsar@nus.edu.sg
Office: EA-02-01

I am interested in the exploitation of the multiple quantum degrees of freedom (spin, pseudospin and valley) available to novel materials in the ultimate atomically thin limit for applications in energy-efficient information technologies. For this, we fabricate mesoscopic devices based on two-dimensional heterostructures and characterize their electronic, magnetic and optical properties (mostly) at low temperatures. In our NRF and MOE supported research program, we are utilizing electrons, magnons and superconducting quasiparticles to transport and process spin information for efficient and environmentally sustainable green computing.

L. Cording et al., “Highly anisotropic spin transport in ultrathin black phosphorus”, Nat. Mater., 23, 479 (2024).
A. Avsar, “Highly anisotropic van der Waals magnetism”, Nature Materials, 21 (7), 731-733 (2022).
A. Ciarrocchi et al., “Excitonic devices in van der Waals heterostructures: valleytronics meets twistronics”, Nature Reviews Materials, 7 (6), 449-464 (2022).
M. M. Guilherme et al., “Logic-in-memory based on an atomically thin semiconductor”, Nature, 587, 7832 (2020).
A. Avsar et al., “Probing magnetism in atomically thin semiconducting PtSe2”, Nature Communications, 11, 1-7, (2020).
A. Avsar et al., “Spintronics in graphene and other two-dimensional materials”, Review of Modern Physics, 92 (2), 021003 (2020).
A. Avsar et al., “Layer-modulated magnetism in a two-dimensional transition metal dichalcogenide”, Nature Nanotechnology, 14, 674-678 (2019).
D. Unuchek et al., “Valley-polarized exciton currents in a van der Waals heterostructure, Nature Nanotechnology, 14, 1104-1109 (2019).
D. Unuchek et al., “Room-temperature electrical control of exciton flux in an atomically thin van der Waals heterostructure”, Nature, 560 (7718), 340 (2018).
A. Avsar et al., “Gate Tunable Black Phosphorus Spin Valve with Nanosecond Spin Lifetimes”, Nature Physics, 13, 888-894 (2017).
A. Avsar et al., “Spin-orbit proximity effect in graphene”, Nature Communications, 5,4875 (2014).