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Anisotropic phonon and magnon vibration and gate-tunable optoelectronic properties of nickel thiophosphite

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cris.lastimport.scopus2024-02-12T19:59:54Z
dc.abstract.enTransition metal phosphorus trichalcogenides retain spin-charge coupling and lattice vibrations in different layers, which are useful for spintronic and optoelectronic devices. The phonon, magnons and excitonic properties of two-dimensional ternary nickel-phosphorus trisulfides (NiPS3) are investigated using Raman spectroscopy and photoluminescence (PL) study. With magnetic exchange interaction, an exotic phonon scattering degenerates the optical phonons into in-plane Ag and Bg modes. We have observed eight Raman modes with two acoustic anisotropic magnon modes (M1, M2) below the critical temperature for co-(XX), while only M1 at cross (XY) polarizations. The M1 mode is coupled with the phonon Bg mode that can survive after transition temperature. The phonon and magnon modes soften with variations in temperature, which is attributed to anharmonic phonon–phonon coupling and interlayer forces. The polarized Raman shows the two-fold and four-fold symmetry orientations of the phonon and magnon modes, respectively, which exhibit strong in-plane anisotropic phonon/magnon. The PL spectra revealed the existence of bound excitonic features and ensemble emitters in NiPS3. The robust interlayer excitation and structural stability further revealed the optothermal properties. Moreover, the fabricated field-effect transistor on NiPS3 reveals p-type semiconducting nature with an ON/OFF ratio of 5 × 106 and mobility of ∼16.34 cm2 V−1 s−1. In contrast, the rectification ratio indicates their diode characteristics. Similarly, the photocurrent is enhanced by changing the wavelength of light, which shows the potential for optoelectronics. The strong spin-charge interaction provides new insights into these materials' magneto-optical and thermal properties for memory devices.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorZhang, Han
dc.contributor.authorZhao, Weisheng
dc.contributor.authorZhu, Ling
dc.contributor.authorZhang, Yue
dc.contributor.authorMolas, Maciej
dc.contributor.authorKarmakar, Arka
dc.contributor.authorWali, Faiz
dc.contributor.authorWang, Yan
dc.contributor.authorIslam, Rajbul
dc.contributor.authorZu, Lin
dc.contributor.authorAbbas, Ghulam
dc.contributor.authorSzpakowski, Jan
dc.contributor.authorMuhammad, Zahir
dc.date.accessioned2024-01-24T16:39:37Z
dc.date.available2024-01-24T16:39:37Z
dc.date.copyright2023-01-10
dc.date.issued2023
dc.description.accesstimeAT_PUBLICATION
dc.description.financeŚrodki finansowe, o których mowa w art. 365 pkt. 2 ustawy
dc.description.number2
dc.description.versionFINAL_PUBLISHED
dc.description.volume10
dc.identifier.doi10.1088/2053-1583/ACA9DC
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/100726
dc.identifier.weblinkhttps://iopscience.iop.org/article/10.1088/2053-1583/aca9dc
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartof2D Materials
dc.relation.pages025001-1-14
dc.rightsCC-BY
dc.sciencecloudnosend
dc.subject.ensingle crystals
dc.subject.en2D ternary compounds
dc.subject.enanisotropic phonon and magnon
dc.subject.enDFT
dc.subject.enoptoelectronics devices
dc.titleAnisotropic phonon and magnon vibration and gate-tunable optoelectronic properties of nickel thiophosphite
dc.typeJournalArticle
dspace.entity.typePublication