Probing of magnetic dimensional crossover in CrSiTe$_{3}$ through picosecond strain pulses

[2402.01256] Probing of magnetic dimensional crossover in CrSiTe$_{3}$ through picosecond strain pulses Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Condensed Matter > Materials Science arXiv:2402.01256 (cond-mat) [Submitted on 2 Feb 2024] Title: Probing of magnetic dimensional crossover in CrSiTe$_{3}$ through picosecond strain pulses Authors: Anjan Kumar N M , Soumya Mukherjee , Abhirup Mukherjee , Ajinkya Punjal , Shubham Purwar , Thirupathaiah Setti , Shriganesh Prabhu S , Siddhartha Lal , N. Kamaraju View a PDF of the paper titled Probing of magnetic dimensional crossover in CrSiTe$_{3}$ through picosecond strain pulses, by Anjan Kumar N M and 7 other authors View PDF HTML (experimental) Abstract: Elucidating the emergence of long-range magnetic ordering from its precursor short-range magnetic ordering (SRMO) in two-dimensional van der Waals materials holds profound implications for fundamental research and technological advancements. However, directly observing the intricate stages of this magnetic dimensional crossover (MDC) remains a significant experimental challenge. While magneto-elastic coupling offers a promising avenue, detecting the minute lattice response to SRMO proves challenging. Recent investigations utilizing second harmonic generation have unveiled a two-step MDC in a van der Waals ferromagnetic insulator. However, an unambiguous detection of MDC through the time-resolved techniques remains elusive. To meet this goal, we have executed an alternative approach by employing picosecond acoustic strain pulses generated by femtosecond lasers to probe the various stages of MDC through the magneto-elastic coupling for the first time. By analyzing the shape of the strain pulse in both the time and frequency domains as a function of temperature, we clearly demonstrate the detection of the subtle influence of spin fluctuations on the lattice. Additionally, the ultrafast carrier dynamics also show signatures of MDC. Our measurements pave the way towards characterizing magnetic materials in time-resolved experiments that are crucial in designing a new generation of spin-based optoelectronic devices. Comments: Manuscript contains 12 pages with 3 figures + Supplementary Material Subjects: Materials Science (cond-mat.mtrl-sci) Cite as: arXiv:2402.01256 [cond-mat.mtrl-sci] (or arXiv:2402.01256v1 [cond-mat.mtrl-sci] for this version) https://doi.org/10.48550/arXiv.2402.01256 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Physical Review B 111, L140414 (2025) Related DOI : https://doi.org/10.1103/PhysRevB.111.L140414 Focus to learn more DOI(s) linking to related resources Submission history From: Anjan Kumar N M [ view email ] [v1] Fri, 2 Feb 2024 09:23:28 UTC (8,489 KB) Full-text links: Access Paper: View a PDF of the paper titled Probing of magnetic dimensional crossover in CrSiTe$_{3}$ through picosecond strain pulses, by Anjan Kumar N M and 7 other authors View PDF HTML (experimental) TeX Source view license Current browse context: cond-mat.mtrl-sci < prev | next > new | recent | 2024-02 Change to browse by: cond-mat References & Citations NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... 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