Breathing pyrochlore
WebPyrochlore definition, a mineral, chiefly composed of niobates of the cerium metals, occurring in syenites in the form of brown crystals. See more. WebSome of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items.
Breathing pyrochlore
Did you know?
WebOct 19, 2024 · The breathing pyrochlore lattice material Ba 3 Yb 2 Zn 5 O 11 exists in the nearly decoupled limit, in contrast to most other well-studied breathing pyrochlore compounds. As a result, it constitutes a useful platform to benchmark theoretical calculations of exchange interactions in insulating Yb 3+ magnets. Here we study Ba 3 Yb 2 Zn 5 O … WebMar 30, 2024 · (a) A schematic plot of breathing pyrochlore lattice. The tetrahedron in blue is up pointing while the tetrahedron in red is down pointing. The uniaxial strains in the …
Webpyrochlore: [noun] a brown or dark reddish mineral NaCaCb2O6F that is isomorphous with microlite and is an oxide and fluoride of sodium, calcium, and columbium. WebSep 26, 2024 · The breathing pyrochlore lattice material Ba 3 Yb 2 Zn 5 O 11 exists in the nearly decoupled limit, in contrast to most other well-studied breathing pyrochlore compounds. As a result, it constitutes a useful platform to benchmark theoretical calculations of exchange interactions in insulating Yb 3+ magnets.
WebAug 1, 2024 · The magnetic Cr occupies a breathing pyrochlore lattice. Ferromagnetic ordering is found below TC ∼ 61 K, by both neutron diffraction and magnetometer studies, with a small, saturated moment of ∼0.25 μB/Cr observed at 2 K, making Cr4PtGa17 the first ferromagnetically ordered material with a breathing pyrochlore lattice. A … WebFeb 14, 2024 · Herein, the structure and magnetic properties of the breathing pyrochlore compound LiInCr 4−x Fe x O 8 (x = 0, 0.2, 0.4, 0.5) are reported. Raman scattering experiments show the hardening behavior of the active mode induced by the increased ionic masses and bond strength.
WebJun 29, 2024 · Pyrochlore and kagome antiferromagnets are archetypical examples of flat-band systems in frustrated magnetism [1, 2].In these classical spin liquids, the flat bands correspond to highly degenerate ground-state manifolds which support emergent Coulomb physics [].However, while the pyrochlore and kagome antiferromagnets have been …
WebSep 21, 2016 · The breathing pyrochlore and the phase diagram.: (a) The breathing pyrochlore. The letter u(d) refers to the up-pointing (down-pointing) tetrahedra and J(J?) indicates the nearest-neighbour ... define the term antibioticsWebDec 18, 2024 · Breathing chromium spinels: a showcase for a variety of pyrochlore Heisenberg Hamiltonians Introduction. In particular, for rare … define the term antigensWebThe breathing pyrochlore system, which consists of an alternatingarrayofsmall(S)andlarge(L)tetrahedra,embodies bond alternation and frustration in a single material as shown in Fig. 1(a) [13–19]. Its spin Hamiltonian is given by H = J ij∈S S i ·S j +J ij∈L S i ·S j, with nearest-neighbor ex-change interaction J for the S tetrahedra … feh brave hector buildWebJan 29, 2013 · A unique type of frustrated lattice is found in two A-site ordered spinel oxides, LiGaCr4O8 and LiInCr4O8. Because of the large size mismatch between Li+ and … fehb rates 2023WebJan 2, 2024 · In breathing pyrochlore compounds the lattice inversion symmetry at each site is broken due to the different sizes of uppointing and down-pointing tetrahedra, thus … fehb rates 2020WebMar 31, 2015 · The spinel oxides LiGaCr4O8 and LiInCr4O8 contain size-alternating pyrochlore lattices of spin-3/2 Cr3+ tetrahedra with different magnitudes of alternation. We show here that the solid solutions LiGa1-xInxCr4O8 between these two 'breathing' pyrochlore compounds display (i) rapid suppression of magnetic and structural … feh breath weaponsWebinstead of identical ones, known as a “breathing pyrochlore lattice”. Such systems are currently being explored, both theoretically and experimentally.52–58 Two examples of the breathing pyrochlore lattice materials are the spinel-based compounds LiGaCr 4 O 8 and LiInCr 4 O 8.53 Both compounds antiferromagnetically order 53near 15 K. define the term appeasement