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Highly Spin‐Frustrated Magnetism in the Topochemically Prepared Triangular Lattice Cluster Magnets Na 3 A 2 (MoO 4 ) 2 Mo 3 O 8 (A=In, Sc)
Author(s) -
Haraguchi Yuya,
Michioka Chishiro,
Ueda Hiroaki,
Yoshimura Kazuyoshi
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201703597
Subject(s) - antiferromagnetism , frustration , magnetism , condensed matter physics , hexagonal lattice , spins , cluster (spacecraft) , lattice (music) , spin glass , geometrical frustration , crystal structure , spin (aerodynamics) , heisenberg model , quantum spin liquid , physics , crystallography , chemistry , spin polarization , quantum mechanics , electron , computer science , acoustics , thermodynamics , programming language
Abstract The physical properties of novel cluster‐based triangular lattice antiferromagnets Na 3 A 2 (MoO 4 ) 2 Mo 3 O 8 (A=In, Sc), synthesized through a topochemical Na‐intercalation to nonmagnetic Na 2 A 2 (MoO 4 ) 2 Mo 3 O 8 , are reported. The S =1/2 [Mo 3 ] 11+ clusters form a regular triangular lattice, which gives the magnetic system a strong geometrical spin frustration effect. Despite the strong antiferromagnetic couplings among [Mo 3 ] 11+ clusters, they show no long‐range magnetic orderings down to 0.5 K with the finite residual magnetic entropy. The ground states of Na 3 A 2 (MoO 4 ) 2 Mo 3 O 8 have been characterized as a quantum spin liquid, owing to the strong spin frustration of cluster spins on the triangular lattice.