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 …

Molecular quantum materials: electronic phases and charge dynamics in two-dimensional organic solids

M Dressel, S Tomić - Advances in physics, 2020 - Taylor & Francis
This review provides a perspective on recent developments and their implications for our
understanding of novel quantum phenomena in the physics of two-dimensional organic …

Effect of quenched disorder on the quantum spin liquid state of the triangular-lattice antiferromagnet

H Murayama, Y Sato, T Taniguchi, R Kurihara… - Physical Review …, 2020 - APS
A quantum spin liquid (QSL) is an exotic state of matter characterized by quantum
entanglement and the absence of any broken symmetry. A longstanding open problem …

A quantum dipolar spin liquid

NY Yao, MP Zaletel, DM Stamper-Kurn, A Vishwanath - Nature Physics, 2018 - nature.com
Quantum spin liquids are a class of magnetic ground states reliant on non-local
entanglement. Motivated by recent advances in the control of ultracold polar molecules and …

Spin thermal Hall conductivity of a kagome antiferromagnet

H Doki, M Akazawa, HY Lee, JH Han, K Sugii… - Physical review …, 2018 - APS
A clear thermal Hall signal (κ xy) was observed in the spin-liquid phase of the S= 1/2
kagome antiferromagnet Ca kapellasite [CaCu 3 (OH) 6 Cl 2· 0.6 H 2 O]. We found that κ xy …

Boundary-limited and Glassy-like Phonon Thermal Conduction in EtMe3Sb[Pd(dmit)2]2

M Yamashita - Journal of the Physical Society of Japan, 2019 - journals.jps.jp
In molecular-based quantum-spin-liquid candidate EtMe3Sb [Pd (dmit) 2] 2 with two-
dimensional S= 1/2 triangular lattice, a finite residual linear term in the thermal conductivity …

Proton–electron-coupled functionalities of conductivity, magnetism, and optical properties in molecular crystals

H Mori, S Yokomori, S Dekura, A Ueda - Chemical Communications, 2022 - pubs.rsc.org
Proton–electron-coupled reactions, specifically proton-coupled electron transfer (PCET), in
biological and chemical processes have been extensively investigated for use in a wide …

Anisotropic proton conductivity arising from hydrogen-bond patterns in anhydrous organic single crystals, imidazolium carboxylates

Y Sunairi, A Ueda, J Yoshida, K Suzuki… - The Journal of Physical …, 2018 - ACS Publications
Organic acid–base salts have attracted increasing attention as a promising candidate of
anhydrous proton conductors. In this study, we have successfully disclosed the relationship …

Presence and absence of itinerant gapless excitations in the quantum spin liquid candidate

M Yamashita, Y Sato, T Tominaga, Y Kasahara… - Physical Review B, 2020 - APS
EtMe 3 Sb [Pd (dmit) 2] 2, an organic Mott insulator with nearly isotropic triangular lattice, is a
candidate material for a quantum spin liquid, in which the zero-point fluctuations do not …

[HTML][HTML] Resistivity and thermal conductivity of an organic insulator β′–EtMe3Sb[Pd(dmit)2]2

M Yamashita, Y Sato, Y Kasahara, S Kasahara… - Scientific reports, 2022 - nature.com
A finite residual linear term in the thermal conductivity at zero temperature in insulating
magnets indicates the presence of gapless excitations of itinerant quasiparticles, which has …