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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Sci+Technol+Adv+Mater
2009 ; 10
(2
): 024304
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English Wikipedia
Variety of valence bond states formed of frustrated spins on triangular lattices
based on a two-level system Pd(dmit)(2)
#MMPMID27877277
Tamura M
; Kato R
Sci Technol Adv Mater
2009[Apr]; 10
(2
): 024304
PMID27877277
show ga
Recent studies on the physical properties of the triangular system based on the
Pd(dmit)(2) salts (dmit=1,3-dithiole-2-thione-4,5-dithiolate) are reviewed.
Quantum chemical architectures of the Pd(dmit)(2) molecule and its dimer are
introduced with emphasis on the strong dimerization of a two-level system, which
provides unique physical properties of the salts. The magnetic properties are
outlined in view of the magneto-structural correlation specific to the frustrated
spin systems. Some newly discovered ground states and their origins are
discussed, for which the valence bond formation plays a key role. Among them, the
two-level structure is crucial for the novel charge-separated state found in two
salts. The valence bond ordering, similar to the spin-Peierls transition, has
been found in a two-dimensional frustrated spin system. The physical aspects and
possible relation to the pressure-induced superconductivity are discussed.