Hole superconductivity in the electron-doped superconductor PCCO (2007)
We measure the resistivity and Hall angle of the electron-doped superconductor Pr_{2-x}Ce_xCuO_4 as a function of doping and temperature. The resistivity Rho_xx at temperatures 100K < T < 300K is...
Dirty Superconductivity in the Electron-Doped Cuprate PCCO: a Tunneling Study (2007)
Dagan, Y., Beck, R., Greene, R. L.
We report a tunneling study between Pr_2-xCe_xCuO_{4-delta} (PCCO) and Lead as a function of doping, temperature and magnetic field. The temperature dependence of the gap follows the BCS prediction....
Leibovitch, G., Beck, R., Dagan, Y., Hacohen, S., Deutscher, G.
We report planar tunneling measurements on thin films of YBa$_2$Cu$_3$O$_{7-x}$ at various doping levels under magnetic fields. By choosing a special setup configuration, we have probed a field...
Role of oxygen in the electron-doped superconducting cuprates (2006)
Higgins, J. S., Dagan, Y., Barr, M. C., Weaver, B. D., Greene, R. L.
We report on resistivity and Hall measurements in thin films of the electron-doped superconducting cuprate Pr$_{2-x}$Ce$_{x}$CuO$_{4\pm\delta}$. Comparisons between x = 0.17 samples subjected to...
Zimmers, A., Tomczak, J. M., Lobo, R. P. S. M., Bontemps, N., Hill, C. P., Barr, M. C., ...
We report the temperature dependence of the infrared-visible conductivity of Pr(2-x)Ce(x)CuO(4) thin films. When varying the doping from a non-superconducting film (x = 0.11) to a superconducting...
Infrared Signature of the Superconducting State in Pr(2-x)Ce(x)CuO(4) (2005)
Zimmers, A., Lobo, R. P. S. M., Bontemps, N., Homes, C. C., Barr, M. C., Dagan, Y., ...
We measured the far infrared reflectivity of two superconducting Pr(2-x)Ce(x)CuO(4) films above and below Tc. The reflectivity in the superconducting state increases and the optical conductivity...
Tunneling into the normal state of Pr(2-x)CexCuO4 (2004)
Dagan, Y., Qazilbash, M. M., Greene, R. L.
The temperature dependence of the tunneling conductance was measured for various doping levels of Pr(2-x)CexCuO4 using planar junctions. A normal state gap is seen at all doping levels studied,...
Origin of the anomalous low temperature upturn in resistivity in the electron-doped cuprates (2004)
Dagan, Y., Biswas, A., Barr, M. C., Fisher, W. M., Greene, R. L.
The temperature, doping and field dependences of the magnetoresistance (MR) in Pr_(2-x)Ce_(x)CuO_(4-delta) films are reported. We distinguish between orbital MR, found when the magnetic field is...
Remarkable change of tunneling conductance in YBCO films in fields up to 32.4T (2004)
Beck, R., Dagan, Y., Milner, A., Leibovitch, G., Gerber, A., Mints, R. G., ...
We studied the tunneling density of states in YBCO films under strong currents flowing along node directions. The currents were induced by fields of up to 32.4T parallel to the film surface and...
Zimmers, A., Tomczak, J. M., Lobo, R. P. S. M., Bontemps, N., Hill, C. P., Barr, M. C., ...
We report the temperature dependence of the infrared-visible conductivity of Pr(2-x)Ce(x)CuO(4) thin films. When varying the doping from a non-superconducting film (x = 0.11) to a superconducting...
Infrared Signature of the Superconducting State in Pr(2-x)Ce(x)CuO(4) (2004)
Zimmers, A., Lobo, R. P. S. M., Bontemps, N., Homes, C. C., Barr, M. C., Dagan, Y., ...
We measured the far infrared reflectivity of two superconducting Pr(2-x)Ce(x)CuO(4) films above and below Tc. The reflectivity in the superconducting state increases and the optical conductivity...
Zimmers, A., Tomczak, J. M., Lobo, R. P. S. M., Bontemps, N., Hill, C. P., Barr, M. C., ...
We report the temperature dependence of the infrared-visible conductivity of Pr(2-x)Ce(x)CuO(4) thin films. When varying the doping from a non-superconducting film (x = 0.11) to a superconducting...
Infrared Signature of the Superconducting State in Pr(2-x)Ce(x)CuO(4) (2004)
Zimmers, A., Lobo, R. P. S. M., Bontemps, N., Homes, C. C., Barr, M. C., Dagan, Y., ...
We measured the far infrared reflectivity of two superconducting Pr(2-x)Ce(x)CuO(4) films above and below Tc. The reflectivity in the superconducting state increases and the optical conductivity...
Zimmers, A., Tomczak, J. M., Lobo, R. P. S. M., Bontemps, N., Hill, C. P., Barr, M. C., ...
We report the temperature dependence of the infrared-visible conductivity of Pr(2-x)Ce(x)CuO(4) thin films. When varying the doping from a non-superconducting film (x = 0.11) to a superconducting...
Infrared Signature of the Superconducting State in Pr(2-x)Ce(x)CuO(4) (2004)
Zimmers, A., Lobo, R. P. S. M., Bontemps, N., Homes, C. C., Barr, M. C., Dagan, Y., ...
We measured the far infrared reflectivity of two superconducting Pr(2-x)Ce(x)CuO(4) films above and below Tc. The reflectivity in the superconducting state increases and the optical conductivity...
Dagan, Y., Qazilbash, M. M., Hill, C. P., Kulkarni, V. N., Greene, R. L.
The doping and temperature dependence of the Hall coefficient, RH, and ab-plane resistivity in the normal state down to 350mK is reported for oriented films of the electron-doped high-Tc...
Qazilbash, M. M., Biswas, Amlan, Dagan, Y., Ott, R. A., Greene, R. L.
We present conductance-voltage (G-V) data for point contact junctions between a normal metal and the electron doped cuprate superconductor Pr{2-x}Ce{x}CuO4 (PCCO). We observe a zero bias conductance...
Beck, R., Dagan, Y., Milner, A., Gerber, A., Deutscher, G.
hether the node in the order parameter characteristic of a $d-wave$ superconductor can or cannot be removed by an applied magnetic field has been a subject of debate in recent years. Thermal...
Millo, A. Sharoni O., Kohen, A., Dagan, Y., Beck, R., Deutscher, G., Koren, G.
Tunneling spectroscopy of epitaxial (110) Y1-xCaxBa2Cu3O7-d films reveals a doping dependent transition from pure d(x2-y2) to d(x2-y2)+is or d(x2-y2)+idxy order parameter. The subdominant (is or...
Localization by disorder in the infrared conductivity of (Y,Pr)Ba2Cu3O7 films (2001)
Lobo, R. P. S. M., Sherman, E. Ya., Racah, D., Dagan, Y., Bontemps, N.
The ab-plane reflectivity of (Y{1-x}Prx)Ba2Cu3O7 thin films was measured in the 30-30000 cm-1 range for samples with x = 0 (Tc = 90 K), x = 0.4 (Tc = 35 K) and x = 0.5 (Tc = 19 K) as a function of...
We have measured the field dependence of the Zero Bias Conductance Peak (ZBCP) of tunnel junctions prepared on (110) oriented Y1Ba2Cu3O7-d films of various thickness. We have found that the field...