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Authors: Weger, Meir
Bender, Klaus
Klutz, Thomas
Schweitzer, Dieter
Gross, Frieder
Heidmann, Claus Peter
Probst, Christian
Andres, Klaus
Title: Temperature and pressure dependence of the resistivity of β-(BEDT-TTF)2X (X=I3, I2Au) and αt-(BEDT-TTF)2I3
Issue Date: 1988 Zeitschriftenartikel Synthetic metals 25 (1988), S. 49-58
Abstract: The temperature dependence of the resistivity of the organic metals and superconductors {β-(BEDT-TTF)2I3, β-{3-(BEDT-TTF)2I2Au and αt(BEDT-TTF)2I3 was measured at ambient and at several isotropic pressures (up to 2.5 kbar). By the application of a relatively low pressure, it is possible to measure the term in the resistivity that is linear in temperature. This term is masked by the larger T2 term at ambient pressure. It is shown that in the temperature range below 120 K, the external modes are mainly responsible for the resistivity, while above this temperature the flipping of the CH2 groups becomes important. The linear electron-phonon coupling corresponds to a value of λ between 1 and 1.5.
Appears in Collections:15 Fakultätsübergreifend / Sonstige Einrichtung

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