Tunnel junctions on 1:2:4 YBaCuO single crystal

Physica C: Superconductivity and its applications 235-240:PART 3 (1994) 1913-1914

Authors:

P Romano, R Di Leo, AM Cucolo, A Nigro, B Dabrowski, PG Radaelli

Abstract:

We have studied the 1:2:4 phase of the YBaCuO compound by means of tunneling spectroscopy on single crystal based junctions. The crystals, with Tc≈80 K, have been chemically etched before the deposition of the counterelectrode in form of a thin film through a metallic mask. We have compared the tunneling spectra to those obtained on the Y123 system. The features at ±20 mV of the 1:2:3 phase are still observed in the 1:2:4 phase, while the low bias features at ±5 mV are not present in the tunneling characteristics of the Y124 compound. The experimental results are discussed in terms of the different CuO chain role in the Y123 and Y124 systems. © 1994.

LOCAL CONFIGURATIONS IN ERBA2CU3O6+X FOR 0.15-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.9

PHYSICA C 235 (1994) 1261-1262

Authors:

M VAROTTO, G AMORETTI, C BUCCI, R DERENZI, G GUIDI, S JANG, P RADAELLI, C SEGRE

THE HG-BEARING CUPRATE SUPERCONDUCTORS - THE RELATIONSHIP BETWEEN THE OXYGEN-CONTENT AND T-C IN HG-1212 AND THE EFFECT OF PRESSURE ON THE STRUCTURE AND T-C IN HG-1223

EUROPEAN JOURNAL OF SOLID STATE AND INORGANIC CHEMISTRY 31:8-9 (1994) 843-854

Authors:

M MAREZIO, JJ CAPPONI, PG RADAELLI, PP EDWARDS, AR ARMSTRONG, WIF DAVID

TUNNEL-JUNCTIONS ON 1/2/4-Y-BA-CU-O SINGLE-CRYSTALS

PHYSICA C 235 (1994) 1913-1914

Authors:

P ROMANO, R DILEO, AM CUCOLO, A NIGRO, B DABROWSKI, PG RADAELLI

The Phase Diagrams and Doped-Hole Segregation in La2CuO4+δ and La2−xSrxCuO4+δ (x ≤ 0.15, δ ≤ 0.12)

Chapter in Phase Separation in Cuprate Superconductors, Springer Nature (1994) 82-100

Authors:

DC Johnston, F Borsa, PC Canfield, JH Cho, FC Chou, LL Miller, DR Torgeson, D Vaknin, J Zarestky, J Ziolo, JD Jorgensen, PG Radaelli, AJ Schultz, JL Wagner, S-W Cheong, WR Bayless, JE Schirber, Z Fisk