Arnab Singh
Complex scattering, National Synchrotron Light Source II

Brookhaven National Laboratory
National Synchrotron Light Source II
Bldg. 744, Room C08J
P.O. Box 5000
Upton, NY 11973-5000
(631) 344-8293
asingh5@bnl.gov
Arnab joined the CHX (11-ID) beamline as a Research Associate Physics in September 2024 on the "Quantum Dynamics" project. The project is based on studying fluctuations originating due to quantum entanglement in condensed matter systems. His current research interests lies in ergodicity breaking, quantum coherence, topological magnetism, ultrafast pump-probe, spatio-temporal heterogeneity and dynamical phase transitions in strongly correlated systems and magnetic materials.
Expertise | Education | Appointments | Publications | Highlights
Expertise
Characterization techniques: X-ray scattering, neutron scattering, coherent resonant x-ray scattering, x-ray magnetic circular dichroism, x-ray photon correlation spectroscopy, transport and magnetization measurements.
Deposition techniques: Molecular Beam Epitaxy, magnetron sputtering, Langmuir-Blodgett
Education
Ph.D. in Physical Sciences, Saha Institute of Nuclear Physics (HBNI), 2020
Professional Appointments
Sept 2024 - present: Research Associate, NSLS-II, Brookhaven National Laboratory, NY, USA
July 2023 - Sept 2024: Postdoctoral Appointee, MSD, Argonne National Laboratory, IL, USA
Oct 2020 - July 2023: Postdoctoral Scholar, MSD, Lawrence Berkeley National Laboratory, CA, USA
Selected Publications
- Singh A, Hollingworth E, Morley SA, et al (2024) Ergodicity transitions in spin spiral domains in amorphous FeGe thin films. Physical Review B 110:. https://doi.org/10.1103/physrevb.110.l220406
- Singh A, Li J, Montoya SA, et al (2024) Periodicity staircase in a centrosymmetric Fe/Gd magnetic thin film system. npj Quantum Materials 9:. https://doi.org/10.1038/s41535-023-00613-3
- Singh A, Hollingworth E, Morley SA, et al (2023) Characterizing Temporal Heterogeneity by Quantifying Nanoscale Fluctuations in Amorphous Fe-Ge Magnetic Films. Advanced Functional Materials 33:. https://doi.org/10.1002/adfm.202300224
- Singh A, Sanyal MK, Lee JCT, et al (2022) Discretized evolution of solitons in the achiral stripe phase of a Fe/Gd thin film. Physical Review B 105:. https://doi.org/10.1103/physrevb.105.094423
- Singh A, Lee JCT, Avila KE, et al (2019) Scaling of domain cascades in stripe and skyrmion phases. Nature Communications 10:. https://doi.org/10.1038/s41467-019-09934-z
Research Highlights
https://als.lbl.gov/a-novel-staircase-pattern-in-spin-stripe-periodicity/
https://elements.lbl.gov/news/fluctuations-mark-phase-changes-in-magnetic-films/
https://als.lbl.gov/a-crackling-analysis-of-stripe-and-skyrmion-phases/

Brookhaven National Laboratory
National Synchrotron Light Source II
Bldg. 744, Room C08J
P.O. Box 5000
Upton, NY 11973-5000
(631) 344-8293
asingh5@bnl.gov