Tricopper(II) tellurate(VI)

Abstract

Abstract. Cu3TeO6, cubic, Ia3, a = 9-537 (1) A, Z = 8, Px = 6.35 g cm -3. Refinement of the structure based on 330 independent reflections gave R = 0.022. The structure is built up from TeO 6 octahedra connected through Cu atoms. The Te--O lengths are 1.921 (2) ,~ (6×), and the Cu-O coordination distances are 1.949 (2) (2×), 2.031 (3) (2×) and 2.369 (3) ,~, (2×).

Calculated magnetic exchange interactions in the Dirac magnon material Cu3TeO6

“…As shown in Fig. 1, Cu 3 TeO 6 crystallizes in the centrosymmetric cubic crystal structure (space group Ia-3) [48,49]. Temperature (T ) dependent magnetic susceptibility (χ(T )) reveals that this compound displays a long-range antiferromagnetic (AFM) ordering below T N ∼ 60 K [50].…”

Cadmiumorthotellurat(VI) Cd3TeO6: ein pseudoorthorhombischer Kryolith im Vergleich mit Ca3Teo6

“…Die Te-O-Bindungsl/ingen stimmen mit denen nach Hottentot & Loopstra (1981)und anderen Telluraten(VI) z.B. 1,921 (2) /~ in Cu3TeO 6 (Falck, Lindqvist & Moret, 1978), 1,919 (5)A in BeaTeO 7 (Tr6mel, Maetz & M/Jllner, 1977) oder 1,912 (3) bzw. 1,914(3)A in MgaTeO 6 (Schulz & Bayer, 1971) /Jberein.…”

Synthesis and Structural Determination of the Disordered Bixbyite Cu3‐xSb1+xO5.5+3x/2 with Spin‐Glass Behaviour

“…As of the last decade, the copper tellurate Cu 3 TeO 6 with a bixbyite structure a= 9.537 Å has been the focus of intense studies due to its unique magnetic spin‐web structure driven by the ordering of spin of 3d 9 copper and the proof of topological magnons for the first time in a 3D antiferromagnet . The nearest neighbour copper ions (≈3.18 Å) form a 3D network of 8 corner sharing hexagons centered around Te 6+ in the lattice.…”

“…As of the last decade, the copper tellurate Cu 3 TeO 6 with a bixbyites tructure a = 9.537 has been the focus of intense studies due to its uniquem agnetic spin-web structure driven by the ordering of spin of 3d 9 coppera nd the proof of topological magnons for the first time in a3 Da ntiferromagnet. [16][17][18][19][20][21][22] The nearest neighbour copper ions ( % 3.18 )f orm a3 Dn etwork of 8c orner sharing hexagons centered around Te 6 + in the lattice. All adjacent hexagons are oriented differently in space whichr esults in 4u nique AFM domains below T c = 61 K. When taking into account exchange with the second nearest neighbours ( % 3.6 )afrustrated triangulars ub-lattice is formed which forms ap seudo-Kagomet ype lattice that could preventA FM ordering.…”