High-pressure transport study of a charge-transfer salt based on cytosine and TCNQ using a diamond anvil cell
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چکیده
Transport properties of a strongly correlated organic conductor (CHC)TCNQ were examined under high pressures up to about 7 GPa using a diamond anvil cell, where CHC denotes hemiprotonated cytosine pair and TCNQ represents 7,7,8,8tetracyanoquinodimethane. This salt is a highly conductive semiconductor as a fully ionic TCNQ salt with the activation energy Ea of 0.14 eV at ambient pressure. Application of high pressure gradually increased the conductivity. The Ea decreased monotonically by a rate of 0.013 eV/GPa.
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تاریخ انتشار 2008