Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/164403
Title: Signature of ultrafast formation and annihilation of polaronic states in a layered ferromagnet
Authors: Yin, Tingting
You, Jing-Yang
Huang, Yuqing
Do, Thi Thu Ha
Prosnikov, Mikail A.
Zhao, Weijie
Serra, Marco
Christianen, Peter C. M.
Sofer, Zdenek
Sun, Handong
Feng, Yuan Ping
Xiong, Qihua
Keywords: Science::Physics
Issue Date: 2022
Source: Yin, T., You, J., Huang, Y., Do, T. T. H., Prosnikov, M. A., Zhao, W., Serra, M., Christianen, P. C. M., Sofer, Z., Sun, H., Feng, Y. P. & Xiong, Q. (2022). Signature of ultrafast formation and annihilation of polaronic states in a layered ferromagnet. Nano Letters, 22(19), 7784-7790. https://dx.doi.org/10.1021/acs.nanolett.2c01771
Project: NRF-CRP21-2018-0007
NRF-CRP23-2019-0007
MOE2018-T3-1-002
Journal: Nano Letters
Abstract: The strong interaction between charge and lattice vibration gives rise to a polaron, which has a profound effect on optical and transport properties of matters. In magnetic materials, polarons are involved in spin dependent transport, which can be potentially tailored for spintronic and opto-spintronic device applications. Here, we identify the signature of ultrafast formation of polaronic states in CrBr3. The polaronic states are long-lived, having a lifetime on the time scale of nanoseconds to microseconds, which coincides with the emission lifetime of ∼4.3 μs. Transition of the polaronic states is strongly screened by the phonon, generating a redshift of the transition energy ∼0.2 eV. Moreover, energy-dependent localization of polaronic states is discovered followed by transport/annihilation properties. These results shed light on the nature of the polarons and their formation and transport dynamics in layered magnetic materials, which paves the way for the rational design of two-dimensional magnetic devices.
URI: https://hdl.handle.net/10356/164403
ISSN: 1530-6984
DOI: 10.1021/acs.nanolett.2c01771
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © 2022 American Chemical Society, after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.nanolett.2c01771.
Fulltext Permission: embargo_20230930
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

Files in This Item:
File Description SizeFormat 
Signature of Ultrafast Formation and Annihilation of Polaronic States in a Layered Ferromagnet.pdf
  Until 2023-09-30
914.3 kBAdobe PDFUnder embargo until Sep 30, 2023

Page view(s)

24
Updated on Feb 5, 2023

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.