Regensburg 2025 – scientific programme
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MA: Fachverband Magnetismus
MA 31: Poster II
MA 31.22: Poster
Wednesday, March 19, 2025, 17:00–19:30, P1
Probing magnetic dimensional crossover in CrSiTe3 through picosecond strain pulses — •Anjan Kumar Naralapura Manohara1,2, Soumya Mukherjee2, Abhirup Mukherjee2, Ajinkya Punjal3, Shubham Purwar4, Thirupathaiah Setti4, Shriganesh Prabhu3, Siddhartha Lal2, and Natarajan Kamaraju2 — 1Institute of Solid State and Materials Physics, TUD Dresden University of Technology, Dresden, Germany, 01069 . — 2Department of Physical Sciences, Indian Institute of Science Education and research, Kolkata, West Bengal, India, 741246. — 3Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental research, Mumbai, Maharashtra, India, 400005. — 4Department of Condensed Matter and Materials Physics, S. N. Bose National Centre for Basic Sciences, Kolkata, West Bengal, India, 700 106.
Two-dimensional van der Waals materials provide a unique platform to investigate the evolution of magnetic order from short-range 2D intraplanar to long-range 3D interplanar configurations. Employing non-degenerate pump-probe spectroscopy, we have generated and detected picosecond acoustic strain pulses in CrSiTe3. By analysing the distinct signatures of these pulses, we have elucidated a multi-stage pathway for the magnetic dimensional crossover. Furthermore, our study reveals novel insights into the intricate interplay between spin dynamics and lattice vibrations, as manifested in both picosecond strain pulses and ultrafast carrier dynamics.
Keywords: Magnetic Dimensional Crossover; Ultrafast magnetism; Strain pulses; vander Waals materials; Pump probe spectroscopy