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dc.contributor.authorYin, Tingtingen_US
dc.contributor.authorYou, Jing-Yangen_US
dc.contributor.authorHuang, Yuqingen_US
dc.contributor.authorDo, Thi Thu Haen_US
dc.contributor.authorProsnikov, Mikail A.en_US
dc.contributor.authorZhao, Weijieen_US
dc.contributor.authorSerra, Marcoen_US
dc.contributor.authorChristianen, Peter C. M.en_US
dc.contributor.authorSofer, Zdeneken_US
dc.contributor.authorSun, Handongen_US
dc.contributor.authorFeng, Yuan Pingen_US
dc.contributor.authorXiong, Qihuaen_US
dc.identifier.citationYin, 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.
dc.description.abstractThe 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.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.relation.ispartofNano Lettersen_US
dc.rightsThis 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
dc.titleSignature of ultrafast formation and annihilation of polaronic states in a layered ferromagneten_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.description.versionPublished versionen_US
dc.description.acknowledgementH.S. and T.Y. acknowledge the support from the Singapore National Research Foundation via Competitive Research Programme (NRF-CRP21-2018-0007 and NRF-CRP23-2019-0007). Y.H. acknowledges financial support from the Knut and Alice Wallenberg Foundation (KAW). Z.S. is supported by project LTAUSA19034 from Ministry of Education Youth and Sports (MEYS). J.Y. and Y.F. are supported by the Ministry of Education, Singapore, under its MOE AcRF Tier 3 Award MOE2018-T3-1-002.en_US
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