Hexagonal perovskites as quantum materials

LT Nguyen, RJ Cava - Chemical Reviews, 2020 - ACS Publications
Hexagonal perovskites, in contrast to the more familiar perovskites, when oxides, allow for
face-sharing of metal–oxygen octahedra or trigonal prisms within their structural frameworks …

Spin liquids in geometrically perfect triangular antiferromagnets

Y Li, P Gegenwart, AA Tsirlin - Journal of Physics: Condensed …, 2020 - iopscience.iop.org
The cradle of quantum spin liquids, triangular antiferromagnets show strong proclivity to
magnetic order and require deliberate tuning to stabilize a spin-liquid state. In this brief …

Giant magnetocaloric effect in spin supersolid candidate Na2BaCo(PO4)2

J **ang, C Zhang, Y Gao, W Schmidt, K Schmalzl… - Nature, 2024 - nature.com
Supersolid, an exotic quantum state of matter that consists of particles forming an
incompressible solid structure while simultaneously showing superfluidity of zero viscosity …

Anisotropic field-induced ordering in the triangular-lattice quantum spin liquid

KM Ranjith, S Luther, T Reimann, B Schmidt… - Physical Review B, 2019 - APS
High-quality single crystals of NaYbSe 2, which resembles a perfect triangular-lattice
antiferromagnet without intrinsic disorder, are investigated by magnetization and specific …

Field-induced magnetic transition and spin fluctuations in the quantum spin-liquid candidate

J **ng, LD Sanjeewa, J Kim, GR Stewart, A Podlesnyak… - Physical Review B, 2019 - APS
Two-dimensional triangular-lattice materials with spin-1/2 are perfect platforms for
investigating quantum frustrated physics with spin fluctuations. Here we report the structure …

Static and Dynamical Properties of the Spin- Equilateral Triangular-Lattice Antiferromagnet

J Ma, Y Kamiya, T Hong, HB Cao, G Ehlers, W Tian… - Physical review …, 2016 - APS
We present single-crystal neutron scattering measurements of the spin-1/2 equilateral
triangular-lattice antiferromagnet Ba 3 CoSb 2 O 9. Besides confirming that the Co 2+ …

Spectral function of the Heisenberg model on the triangular lattice

NE Sherman, M Dupont, JE Moore - Physical Review B, 2023 - APS
Spectral probes, such as neutron scattering, are crucial for characterizing excitations in
quantum many-body systems and the properties of quantum materials. Among the most …

The nature of spin excitations in the one-third magnetization plateau phase of Ba3CoSb2O9

Y Kamiya, L Ge, T Hong, Y Qiu… - Nature …, 2018 - nature.com
Magnetization plateaus in quantum magnets—where bosonic quasiparticles crystallize into
emergent spin superlattices—are spectacular yet simple examples of collective quantum …

Avoided quasiparticle decay and enhanced excitation continuum in the spin- near-Heisenberg triangular antiferromagnet

D Macdougal, S Williams, D Prabhakaran, RI Bewley… - Physical Review B, 2020 - APS
We explore the magnetic excitations of the spin-1 2 triangular antiferromagnet Ba 3 CoSb 2
O 9 in its 120∘ ordered phase using single-crystal high-resolution inelastic neutron …

Double magnetic transitions and exotic field-induced phase in the triangular lattice antiferromagnets

S Lal, SJ Sebastian, SS Islam, MP Saravanan… - Physical Review B, 2023 - APS
Two triangular lattice antiferromagnets Sr 3 Co (Nb, Ta) 2 O 9 with an effective j eff= 1/2 of
Co 2+ are synthesized and their magnetic properties are investigated via magnetization and …