Quantum magnetism in minerals

DS Inosov - Advances in Physics, 2018 - Taylor & Francis
The discovery of magnetism by the ancient Greeks was enabled by the natural occurrence of
lodestone–a magnetized version of the mineral magnetite. Nowadays, natural minerals …

Kapellasite: A kagome quantum spin liquid with competing interactions

B Fåk, E Kermarrec, L Messio, B Bernu, C Lhuillier… - Physical review …, 2012 - APS
Magnetic susceptibility, NMR, muon spin relaxation, and inelastic neutron scattering
measurements show that kapellasite, Cu 3 Zn (OH) 6 Cl 2, a geometrically frustrated spin …

Frustrated Kagome Antiferromagnets under High Magnetic Fields

HK Yoshida - Journal of the Physical Society of Japan, 2022 - journals.jps.jp
Recent improvements in ultra-high magnetic field generation and precise measurement
techniques have facilitated the study of the physical properties of magnetic materials under …

Spin Liquid State in the 3D Frustrated Antiferromagnet : NMR and Muon Spin Relaxation Studies

P Khuntia, F Bert, P Mendels, B Koteswararao… - Physical review …, 2016 - APS
PbCuTe 2 O 6 is a rare example of a spin liquid candidate featuring a three-dimensional
magnetic lattice. Strong geometric frustration arises from the dominant antiferromagnetic …

Orbital switching in a frustrated magnet

H Yoshida, J Yamaura, M Isobe, Y Okamoto… - Nature …, 2012 - nature.com
The orbital is one of the four fundamental degrees of freedom in a solid, besides spin,
charge and lattice. In transition metal compounds, it is usually the d orbitals which play …

From spin liquid to magnetic ordering in the anisotropic kagome Y-kapellasite : A single-crystal study

D Chatterjee, P Puphal, Q Barthélemy, J Willwater… - Physical Review B, 2023 - APS
Y 3 Cu 9 (OH) 19 Cl 8 realizes an original anisotropic kagome model hosting a rich
magnetic phase diagram [Hering et al., npj Comput. Mater. 8, 10 (2022) 2057-3960 …

Spin dynamics and disorder effects in the kagome Heisenberg spin-liquid phase of kapellasite

E Kermarrec, A Zorko, F Bert, RH Colman… - Physical Review B, 2014 - APS
We report Cl 35 NMR, ESR, μ SR, and specific-heat measurements on the S= 1 2 frustrated
kagome magnet kapellasite α-Cu 3 Zn (OH) 6 Cl 2, where a gapless spin-liquid phase is …

Field-induced freezing of a quantum spin liquid on the kagome lattice

M Jeong, F Bert, P Mendels, F Duc, JC Trombe… - Physical Review Letters, 2011 - APS
We report O 17 NMR measurements in the S= 1/2 (Cu 2+) kagome antiferromagnet
Herbertsmithite ZnCu 3 (OH) 6 Cl 2 down to 45 mK in magnetic fields ranging from 2 to 12 T …

Local study of the insulating quantum kagome antiferromagnets

Q Barthélemy, P Puphal, KM Zoch, C Krellner… - Physical Review …, 2019 - APS
The quantum kagome antiferromagnets YCu 3 (OH) 6 O x Cl 3− x (x= 0, 1/3) are produced
using a unified solid state synthesis route for polycrystalline samples. From structural …

Emergent Potts order in the kagome Heisenberg model

V Grison, P Viot, B Bernu, L Messio - Physical Review B, 2020 - APS
Motivated by the physical properties of vesignieite BaCu 3 V 2 O 8 (OH) 2, we study the J 1−
J 3 Heisenberg model on the kagome lattice, which is proposed to describe this compound …