Experimental signatures of quantum and topological states in frustrated magnetism

J Khatua, B Sana, A Zorko, M Gomilšek, K Sethupathi… - Physics Reports, 2023 - Elsevier
Frustration in magnetic materials arising from competing exchange interactions can prevent
the system from adopting long-range magnetic order and can instead lead to a diverse …

Evidence for quantum spin liquid behaviour in single-layer 1T-TaSe2 from scanning tunnelling microscopy

W Ruan, Y Chen, S Tang, J Hwang, HZ Tsai, RL Lee… - Nature Physics, 2021 - nature.com
Two-dimensional triangular-lattice antiferromagnets are predicted under some conditions to
exhibit a quantum spin liquid ground state with no energy barrier to create emergent …

Magnetic memory and spontaneous vortices in a van der Waals superconductor

E Persky, AV Bjørlig, I Feldman, A Almoalem, E Altman… - Nature, 2022 - nature.com
Doped Mott insulators exhibit some of the most intriguing quantum phases of matter,
including quantum spin liquids, unconventional superconductors and non-Fermi liquid …

Mottness versus unit-cell doubling as the driver of the insulating state in 1T-TaS2

CJ Butler, M Yoshida, T Hanaguri, Y Iwasa - Nature communications, 2020 - nature.com
If a material with an odd number of electrons per unit-cell is insulating, Mott localisation may
be invoked as an explanation. This is widely accepted for the layered compound 1 T-TaS2 …

Understanding the Mott insulating state in 1T-TaS2 and 1T-TaSe2

Y Fei, Z Wu, W Zhang, Y Yin - AAPPS Bulletin, 2022 - Springer
In this article, we review the recent progress of the scanning tunneling microscopy studies of
1 T-TaS2 and 1 T-TaSe2 for bulk single crystals and molecular beam epitaxy monolayer …

Quantum spin liquid signatures in monolayer 1T-NbSe2

Q Zhang, WY He, Y Zhang, Y Chen, L Jia… - Nature …, 2024 - nature.com
Quantum spin liquids (QSLs) are in a quantum disordered state that is highly entangled and
has fractional excitations. As a highly sought-after state of matter, QSLs were predicted to …

Ising-type quantum spin liquid state in

N Li, A Rutherford, YY Wang, H Liang, QJ Li, ZJ Zhang… - Physical Review B, 2024 - APS
We have grown single crystals of PrMgAl 11 O 19, an ideal triangular-lattice antiferromagnet,
and performed magnetic susceptibility, specific heat, and thermal conductivity …

Effect of stacking order on the electronic state of

Z Wu, K Bu, W Zhang, Y Fei, Y Zheng, J Gao, X Luo… - Physical Review B, 2022 - APS
New theoretical proposals and experimental findings on transition metal dichalcogenide 1 T-
TaS 2 have revived interest in its possible Mott insulating state. We perform a …

Survival of itinerant excitations and quantum spin state transitions in YbMgGaO4 with chemical disorder

X Rao, G Hussain, Q Huang, WJ Chu, N Li… - Nature …, 2021 - nature.com
A recent focus of quantum spin liquid (QSL) studies is how disorder/randomness in a QSL
candidate affects its true magnetic ground state. The ultimate question is whether the QSL …

Possible itinerant excitations and quantum spin state transitions in the effective spin-1/2 triangular-lattice antiferromagnet Na2BaCo(PO4)2

N Li, Q Huang, XY Yue, WJ Chu, Q Chen… - Nature …, 2020 - nature.com
The most fascinating feature of certain two-dimensional (2D) gapless quantum spin liquid
(QSL) is that their spinon excitations behave like the fermionic carriers of a paramagnetic …