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Scientific Achievement
The magnetic properties of CsYbSe2 crystal indicate its candidacy for a quantum spin liquid (QSL) ground state.
Significance and Impact
The finding of QSL behavior in CsYbSe2 could inform applications in quantum communication and computation.
Research Details
- Extensive low-temperature magnetization, heat capacity and inelastic neutron scattering (INS) measurements were used to find evidence for QSL ground state in the triangular lattice material CsYbSe2.
- Magnetic field perturbed the QSL ground state and induced long-range order along the ab-plane and c-axis.
- Strong spin fluctuations were revealed by the broad peak in heat capacity and highly damped INS magnetic excitations.
- A magnetic plateau of one-third estimated saturation with easy-plane anisotropic magnetism presented a signature of a frustrated triangular lattice.
J. Xing, L. D. Sanjeewa, J. Kim, G. R. Stewart, A. Podlesnyak , and A. S. Sefat, “Field-induced magnetic transition and spin fluctuations in the quantum spin-liquid candidate CsYbSe2” Phys. Rev. B: Rapid Commun., 100, 220407(R) (2019). DOI:
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