Quantum Interference between Quasi-2D Fermi Surface Sheets in UTe2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10481916" target="_blank" >RIV/00216208:11320/24:10481916 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=RrfCtVmXt_" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=RrfCtVmXt_</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.132.266503" target="_blank" >10.1103/PhysRevLett.132.266503</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Quantum Interference between Quasi-2D Fermi Surface Sheets in UTe2

Popis výsledku v původním jazyce

UTe 2 is a spin -triplet superconductor candidate for which high quality samples with long mean free paths have recently become available, enabling quantum oscillation measurements to probe its Fermi surface and effective carrier masses. It has recently been reported that UTe 2 possesses a 3D Fermi surface component [Phys. Rev. Lett. 131 , 036501 (2023)]. The distinction between 2D and 3D Fermi surface sections in triplet superconductors can have important implications regarding the topological properties of the superconductivity. Here we report the observation of oscillatory components in the magnetoconductance of UTe 2 at high magnetic fields. We find that these oscillations are well described by quantum interference between quasiparticles traversing semiclassical trajectories spanning magnetic breakdown networks. Our observations are consistent with a quasi -2D model of this material &apos;s Fermi surface based on prior dHvA-effect measurements. Our results strongly indicate that UTe 2 -which exhibits a multitude of complex physical phenomena -possesses a remarkably simple Fermi surface consisting exclusively of two quasi -2D cylindrical sections.

Název v anglickém jazyce

Quantum Interference between Quasi-2D Fermi Surface Sheets in UTe2

Popis výsledku anglicky

UTe 2 is a spin -triplet superconductor candidate for which high quality samples with long mean free paths have recently become available, enabling quantum oscillation measurements to probe its Fermi surface and effective carrier masses. It has recently been reported that UTe 2 possesses a 3D Fermi surface component [Phys. Rev. Lett. 131 , 036501 (2023)]. The distinction between 2D and 3D Fermi surface sections in triplet superconductors can have important implications regarding the topological properties of the superconductivity. Here we report the observation of oscillatory components in the magnetoconductance of UTe 2 at high magnetic fields. We find that these oscillations are well described by quantum interference between quasiparticles traversing semiclassical trajectories spanning magnetic breakdown networks. Our observations are consistent with a quasi -2D model of this material &apos;s Fermi surface based on prior dHvA-effect measurements. Our results strongly indicate that UTe 2 -which exhibits a multitude of complex physical phenomena -possesses a remarkably simple Fermi surface consisting exclusively of two quasi -2D cylindrical sections.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review Letters

ISSN

0031-9007

e-ISSN

1079-7114

Svazek periodika

132

Číslo periodika v rámci svazku

26

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

266503

Kód UT WoS článku

001260820000004

EID výsledku v databázi Scopus

2-s2.0-85197883927