Impedance spectroscopy data for several rubidium borate glasses

Results of Impedance Spectroscopy (IS) mesurements of different rubidium borate glasses with chemical formula x(Rb2O) (1-x)(B2O3). Mesurements for different temperatures.<br><br>Full impedance spectra of four systems with varying Rb_2O content at a number of temperatures (compositions and temperatures are specified in the file names) as space-separated ASCII files. The seven columns correspond in turn to the frequency nu in Hz, real (Z_r) and imaginary (Z_i) parts of the impedance in Ohm, and derived from those the absolute value sqrt(Z_r^2+Z_i^2) (in Ohm) and the phase of the impedance in degrees atan(-Z_i/Z_r), as well as the resistivity (Z_r^2+Z_i^2)/Z_r and capacitance -Z_i/(Z_r^2+Z_i^2)/(2*pi*nu) of the corresponding parallel circuit.