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The organic semiconductor α′-(BEDT-TTF)2BrICl, which exhibits an abrupt decrease of static magnetic susceptivity at Tc (approximately 200 \rm K) with decreasing temperature was investigated by X-ray diffraction experiments. The drastic first-order structural phase transition at Tc was found. The...
Two different β′′-type crystals have been obtained in the syntheses of the title salts. The crystals show metallic behavior of conductivity and paramagnetic response from the metal complex anions.
The elastic response of molecular organic materials to external mechanical nanoindentations in the nano- and low micronewton force range can be characterized using ultrasharp cantilever tips of an Atomic Force Microscope (AFM). Because clear distinction between elastic and plastic deformation is...
X-ray Photoelectron Spectroscopy and Raman spectroscopy are combined to evaluate the stoichiometry and charge state of building units in conductive films containing TTF, ET or TMTSF donors and [Ni(dmit)2] or [M(dcbdt)2] acceptors.
The history of Florida is followed in a brief manner from the early explorers to the founding of the National High Magnetic Field Laboratory.
We demonstrate that the title compound (TTM-TTP)I3 with a highly one-dimensional half-filled band, which shows a metal-insulator (MI) transition around TMI=120 K, is metallized by application of extremely high pressure (P > 7 GPa) using the cubic anvil apparatus. Above 5.7 GPa, the metallic...
Nano-size crystals of molecular conductors have been directly formed on SiO2/doped-Si substrates. Two kinds of methods were used for this on-site crystal growth, one of which is electrochemical crystallization on electrodes prepared on the substrate, and the other of which is direct reaction of...
13C NMR measurements were performed for one-dimensional organic conductors, (TMTTF)2ReO4. An intermediate charge-ordering (CO) phase has been found firstly for a TMTTF salt with a Td-symmetry counter anion: The NMR parameters indicate two inequivalent molecules with unequal electron densities...
We study theoretically the Knight shift and the nuclear spin relaxation rate in the charge ordering (CO) state of the one-dimensional extended Hubbard model with a quarter-filled band. It is shown that the both quantities split into the two components below the critical temperature of CO, which...
We present experimental evidence for the phase separation (coexistence of two phases) in the monovalent-to-divalent phase transition of ionic crystal, D+A
(D = dineopentylbiferrocene and A=F1TCNQ). The Raman and X-ray diffraction experiments show that the macroscopic domains of high- and...
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