Electronic transport and magnetism in the alternating stack of metallic and highly frustrated magnetic layers in Co1/3NbS2

Znanstveni rad - Izvorni znanstveni rad

• Autor: P. Popčević
• Autor: I. Batistić
• Autor: A. Smontara
• Autor: K. Velebit
• Autor: J. Jaćimović
• Autor: I. Živković
• Autor: N. Tsyrulin
• Autor: J. Piatek
• Autor: H. Berger
• Autor: A. Sidorenko
• Autor: H. Rønnow
• Autor: L. Forró
• Autor: N. Barišić
• Autor: E. Tutiš
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

Transition-metal dichalcogenides (TMDs) are layered compounds that support many electronic phases, including various charge density waves, superconducting, and Mott insulating states. Their intercalation with magnetic ions introduces magnetic sublayers, which strongly influence the coupling between host layers, and feature various magnetic states adjustable by external means. Co1/3NbS2 hosts a particularly sensitive magnetic subsystem with the lowest magnetic ordering temperature in the family of magnetically intercalated TMDs and is the only one where the complete suppression of magnetic order under pressure has been recently suggested. By combining the results of several experimental methods, electronic ab initio calculations, and modeling, we develop insights into the mechanisms of electric transport, magnetic ordering, and their interaction in this compound. The elastic neutron scattering is used to directly follow the evolution of the antiferromagnetic order parameter with pressure and temperature. Our results unambiguously disclose the complete suppression of the observed magnetic order around 1.7GPa. We delve into possible mechanisms of magnetic order suppression under pressure, highlighting the role of magnetic frustrations indicated by magnetic susceptibility measurements and ab initio calculations. Electronic conduction anisotropy is measured in a wide temperature and pressure range. Here, we show that the transport in directions along and perpendicular to layers respond differently to the appearance of magnetic ordering or the application of the hydrostatic pressure. We propose a spin-valve mechanism where the intercalated Co ions act as spin-selective electrical transport bridges between host layers. The mechanism applies to various magnetic states and can be extended to other magnetically intercalated TMDs.

• Ključne riječi (engleski): ransition metal dichalcogenides, DFT, electrical transport, electronic structure, layered crystals, magnetism
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Physical Review B
• Brojčani podaci: vol. 107, br. 23, 235149
• p-ISSN: 2469-9950
• e-ISSN: 2469-9969
• DOI: https://doi.org/10.1103/PhysRevB.107.235149
• URN:NBN: urn:nbn:hr:217:594207
• Datum objave publikacije: 2023
• Projekt: Šifra: 035-0352826-2847; Naziv (hrvatski): Modeliranje fizikalnih svojstava materijala s izraženom frustracijom ili neredom; Naziv (engleski): Modelling physical properties of materials with marked frustration or disorder; Voditelj: Eduard Tutiš; Pravna nadležnost: Hrvatska; Financijer: Ministarstvo znanosti, obrazovanja i mladih Republike Hrvatske; Linija financiranja: zProjects
• Projekt: Šifra: 035-0352826-2848; Naziv (hrvatski): Transport topline i naboja u jako frustriranim magnetima i srodnim materijalima; Naziv (engleski): Thermal and charge transport in highly frustrated magnets and related materials; Voditelj: Ana Smontara; Pravna nadležnost: Hrvatska; Financijer: Ministarstvo znanosti, obrazovanja i mladih Republike Hrvatske; Linija financiranja: zProjects
• Projekt: Šifra: IP-2016-06-7258; Naziv (hrvatski): Fizika mnogočestičnih sustava - iskorištavanje svijeta kompleksnosti; Kratica: COMPLEX_ORBIS; Voditelj: Osor-Slaven Barišić; Pravna nadležnost: Hrvatska; Financijer: Hrvatska zaklada za znanost; Linija financiranja: Research Projects
• Projekt: Šifra: IP-2020-02-9666; Naziv (hrvatski): Interkalirani Dihalkogenidi Prijelaznih Metala; Naziv (engleski): Intercalated Transition Metal Dichalcogenides; Kratica: iTMD; Voditelj: Petar Popčević; Pravna nadležnost: Hrvatska; Financijer: Hrvatska zaklada za znanost; Linija financiranja: Research Projects
• Projekt: Šifra: KK.01.1.1.02.0012; Naziv (hrvatski): Kriogeni centar Instituta za fiziku; Naziv (engleski): Cryogenic Centre at the Institute of Physics; Kratica: KaCIF; Voditelj: Nikolina Novosel; Pravna nadležnost: eu; Financijer: Europska komisija; Linija financiranja: European Regional Development Fund
• Projekt: Šifra: 725521; Naziv (hrvatski): The Janus-face of the localized carrier in cuprates: Generating the pseudogap and high temperature superconductivity; Naziv (engleski): The Janus-face of the localized carrier in cuprates: Generating the pseudogap and high temperature superconductivity; Kratica: TheONE; Pravna nadležnost: eu; Financijer: Europska komisija; Linija financiranja: European Research Council
• URL dokumenta: https://link.aps.org/doi/10.1103/PhysRevB.107.235149
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: © 2023 American Physical Society. Received 3 March 2023. Revised 29 May 2023. Accepted 6 June 2023. Published 29 June 2023.
• Datum i vrijeme pohrane: 2024-07-23 11:10:41