Ultrafast Spin Dynamics of Electrochemically Grown Heusler Alloy Films

Karim, MR and Adhikari, A and Panda, SN and Sharangi, P and Kayal, S and Manna, G and Kumar, PSA and Bedanta, S and Barman, A and Sarkar, I (2021) Ultrafast Spin Dynamics of Electrochemically Grown Heusler Alloy Films. In: Journal of Physical Chemistry C, 125 (19). pp. 10483-10492.

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Abstract

The electrochemical growth of Heusler alloy film with good morphological quality and crystalline order using single-crystalline substrate is demonstrated. Static magneto optical Kerr effect studies are employed to reveal the surface magnetization reversal of the films. An understanding of the intrinsic nature of the magnetization dynamics in this class of electrochemically grown materials is presented using time-resolved magneto optical Kerr effect measurements, under femtosecond laser excitation. Excitation laser fluence dependence study reveals the ultrafast demagnetization time, fast remagnetization time, and magnetic damping parameter as well as their correlation. © 2021 American Chemical Society. All rights reserved.

Item Type:	Journal Article
Publication:	Journal of Physical Chemistry C
Publisher:	American Chemical Society
Additional Information:	The copyright for this article belongs to American Chemical Society
Keywords:	Femtosecond lasers; Laser excitation; Magnetization reversal; Metallic films; Nanocrystalline materials; Spin fluctuations, Electrochemical growth; Magnetic damping parameters; Magnetization dynamics; Magneto-optical Kerr effects; Single crystalline substrates; Surface magnetizations; Time-resolved magneto-optical Kerr effects; Ultrafast demagnetization, Optical Kerr effect
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	16 Aug 2021 07:34
Last Modified:	16 Aug 2021 07:34
URI:	http://eprints.iisc.ac.in/id/eprint/69209

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