Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session F39: Spin Liquid I
11:30 AM–2:30 PM,
Tuesday, March 16, 2021
Sponsoring
Units:
GMAG DMP
Chair: Kate Ross, Colorado State University
Abstract: F39.00005 : 1T-TaS2 as a quantum spin liquid: from bulk to atomically-thin layers.
12:42 PM–12:54 PM
Live
Presenter:
Samuel Mañas-Valero
(Univ de Valencia)
Authors:
Samuel Mañas-Valero
(Univ de Valencia)
Eugenio Coronado
(Univ de Valencia)
Here, we report on bulk and atomically thin-layers of 1T-TaS2. For bulk, we show experimental evidence for several competing quantum phases, obtained by combining temperature-dependent muon spin relaxation and specific heat measurements, with a switching on the spinon density of states versus energy [1]. Regarding atomically-thin layers of 1T-TaS2, we fabricate vertical van der Waals heterostructures based on few-layer graphene and we measure their transport properties. Different activation energies in the conductance and a gap at the Fermi level are observed, which may indicate a progressive formation of out-of-plane spin-paired bilayers at low temperatures [2]. These features make 1T-TaS2 a potential candidate for hosting multiple QSL crossovers.
1. arXiv:2007.15905, 2020
2. arXiv:2009.14550, 2020
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