Quantum magnetotransport and de Haas-van Alphen measurements in the three-dimensional Dirac semimetal Pb0.83Sn0.17Se

Znanstveni rad - Izvorni znanstveni rad

• Autor: Filip Orbanić
• Autor: Mario Novak; MBZ: 262321
• Autor: Sanda Pleslić; MBZ: 211524
• Autor: Ivan Kokanović; MBZ: 134951
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

Magnetoresistance (MR), Hall resistance and magnetization of the Pb0.83Sn0.17Se crystals have been measured in magnetic field up to 15 T and 5 T, respectively, and temperatures from 1.7 K up to 300 K. A large linear and temperature dependent MR is observed in magnetic field up to 15 T. The de Haas{; ; van Alphen (dHvA) and Shubnikov de Haas effects (SdH) of Pb0.83Sn0.17Se crystals have been clearly seen in the temperature range from 30 K down to 1.7 K and magnetic field as low as 2 T. The dHvA and SdH oscillations reveal single frequency of around 8 T which con rms the existence of a single Fermi surface cross section. Influence of isothermal annealing of Pb0.83Sn0.17Se crystals in Se vapours has been investigated. By increasing the annealing temperature from 433 oC up to 440 oC , transition from n to p-type conductivity has been observed. The dHvA and SdH effects clearly reflect the existence of a nontrivial Berry's phase owing to the linear band dispersion which is the signature of a three- dimensional Dirac fermion in the Pb0.83Sn0.17Se crystals [1].

• Ključne riječi (engleski): Topological crystalline insulators; Dirac semimetals
• 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: Journal of Physics: Conference Series
• Brojčani podaci: vol. 969, 012142
• p-ISSN: 1742-6588
• e-ISSN: 1742-6596
• DOI: https://doi.org/10.1088/1742-6596/969/1/012142
• URN:NBN: urn:nbn:hr:217:812232
• Datum objave publikacije: 2018
• Projekt: Šifra: IP-2013-11-6216; Naziv (hrvatski): Transporna, magnetska i termodinamička svojstva odabranih anorganskih i organskih materijala; Kratica: TRANMAGTHERPROMAT; Voditelj: Ivan Kokanović; Pravna nadležnost: Hrvatska; Financijer: HRZZ; Linija financiranja: IP
• URL dokumenta: http://iopscience.iop.org/article/10.1088/1742-6596/969/1/012142
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence http://creativecommons.org/licenses/by/3.0. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
• Datum i vrijeme pohrane: 2020-03-01 12:35:25