Experimental Data
1
.
Conductivity measurements
show that the dc conductivity at room temperature is above 10
11
S/cm, and above 10
24
S/cm at 4.2
o
K. The accuracy of the data is limited only by the instrumental capabilities.
The conductivity of metals at room temperature does not exceed 10
6
S/cm.
2
.
Critical current measurements
show that dc current density at room temperature is around 6.4x10
9
A/cm
2
(wires with a diameter of 1-2 microns can carry up to 70--100 Amp).
3
.
Critical current measurements
exhibit an instantaneous transition to high resistivity at critical current.
4
.
Tunnelling measurements
show that at room temperature the tunnelling gap is around 250 meV. By using the relation between the energy gap ∆ and pairing temperature
T
pair
for copper oxides - high-temperature superconductors, 2
∆
= 6
k
B
T
pair
, the energy gap of 250 meV indicates that
T
c
is of the order of 970
o
K (700
o
C).
The critical temperature of the polymers cannot be measured directly because it is too high - polymers start to decay above 450
o
C.
5
.
Resistivity measurements
performed on a polymer film sandwiched between tin electrodes show that below the critical temperature of tin (
T
c
= 3.6
o
K), the sandwich is completely superconducting.
6
.
Conductivity measurements in magnetic field
show that at
T
c
= 4.2
o
K the dc conductivity is not affected by magnetic field up to 9 Tesla (maximum magnitude available during the measurements).
7
.
Magnetic measurements
show that at room temperature the wires with a diameter of 1-2 microns exhibit large diamagnetism. To observe the 'clean' Meissner effect on wires with a diameter of 1-2 microns is a challenge.
8
.
Thermal conductivity measurements
show the violation of the Wiedemann-Franz law by seven orders of magnitude.
9
.
Thermoelectric measurements
show that the Seebeck coefficient measured between 87
o
K and 233
o
K is zero.
Such a combination of physical properties is known ONLY for superconductors
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