2021/09/09 by Jie Xing, Liurukara D. Sanjeewa, Andrew F. May +1
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Anisotropy #Antiferromagnetism #Atomic physics #Chemistry #Condensed matter physics #Crystal structure #Crystallography #Ground state #Hexagonal lattice #Magnetic and transport properties of perovskites and related materials #Magnetic anisotropy #Magnetic field #Magnetism #Magnetization #Materials science #Multiferroics and related materials #Octahedron #Physics #Quantum mechanics #Quantum spin liquid #Spin (aerodynamics) #Spin polarization #cond-mat.str-el
paper · pdf · doi:10.1063/5.0071161
published as APL Mater. 9, 111104 (2021) · 9 pages, 7 figures
arxiv created 2021/09/09 · openalex publication_date 2021/11/01 · arxiv updated 2021/11/16 · openalex created_date 2021/11/22 · openalex updated_date 2026/06/18
The quantum spin liquid (QSL) state in rare-earth triangular lattices has attracted much attention recently due to its potential application in quantum computing and communication. Here, we report the single-crystal growth synthesis, crystal structure characterizations, and magnetic properties of AYbSe2 (A = K and Rb) compounds. The x-ray diffraction analysis shows that AYbSe2 (A = K and Rb) crystallizes in a trigonal space group, R-3m (No. 166) with Z = 3. AYbSe2 possesses a two-dimensional (2D) Yb–Se–Yb layered structure formed by edged-shared YbSe6 octahedra. The magnetic properties are highly anisotropic for both title compounds, and no long-range order is found down to 0.4 K, revealing the possible QSL ground state in these compounds. The isothermal magnetization exhibits a one-third magnetization plateau when the magnetic fields are applied in the ab-plane. Heat capacity is performed along both ab-plane and c axis and features the characteristic dome for triangular magnetic lattice compounds as a function of magnetic fields. Due to the change in the interlayer and intralayer distance of Yb3+, the dome shifts to low fields from KYbSe2 to RbYbSe2. All these results indicate that the AYbSe2 family presents unique frustrated magnetism close to the possible QSL and noncollinear spin states.