Noise measurement of YBa2Cu3O7-x and Ti2Ba2Ca2Cu3O10-x thin films

The noise of YBa2Cu3O7−x and Tl2Ba2Cr2Cu3O10−x thin films in the frequency range from 0.5 Hz to 100 kHz was studied. In the normal state, it was found that 1/f noise dominated, with a magnitude strongly dependent on temperature. In the superconducting state, the noise was only observable at frequencies below 5 Hz with our present setup. Equilibrium thermal fluctuation noise was not observed in these films.

[1]  Fisk,et al.  Normal-state properties of ABa2Cu3O7-y compounds (A=Y and Gd): Electron-electron correlations. , 1987, Physical review. B, Condensed matter.

[2]  A. Kleinsasser,et al.  Measurement of anisotropic resistivity and Hall constant for single-crystal YBa2Cu3O7-x. , 1987, Physical review letters.

[3]  M. Beasley,et al.  Low frequency resistance fluctuations in films of high temperature superconductors , 1989 .

[4]  S. Kuriki,et al.  Telegraph-like noise in Y-Ba-Cu oxide thin-film dc SQUID's , 1988 .

[5]  Hoi Sing Kwok,et al.  Nonthermal optical response of Y‐Ba‐Cu‐O thin films , 1989 .

[6]  H. Kwok,et al.  Laser patterning and critical current measurements of submicrometer lines of Y-Ba-Cu-O , 1989 .

[7]  Atsutaka Maeda,et al.  1/f conduction noise in the high-temperature superconductor Bi-Sr-Ca-Cu-O system , 1989 .

[8]  Furukawa.  Universal spectra of quasirandom objects produced by off-equilibrium space divisions. , 1986, Physical review. A, General physics.

[9]  Gallagher,et al.  Hall coefficient and oxygen stoichiometry in YBa2Cu3O7- delta ceramics at elevated temperatures. , 1988, Physical review. B, Condensed matter.

[10]  Paul L. Richards,et al.  The high T/sub c/ superconducting bolometer , 1988 .

[11]  Qing Hu,et al.  Design analysis of a high Tc superconducting microbolometer , 1989 .

[12]  R. Black,et al.  Thermal fluctuation and 1/ f noise in oriented and unoriented Y sub 1 Ba sub 2 Cu sub 3 O sub 7 minus x films , 1989 .

[13]  Lee,et al.  Noise measurement near the transition region in YBa2Cu3O7- delta thin-film superconductor. , 1989, Physical review. B, Condensed matter.

[14]  A. van der Ziel,et al.  On the noise spectra of semi-conductor noise and of flicker effect , 1950 .

[15]  Si-Hwang Liou Publications,et al.  Superconducting Tl-Ba-Ca-Cu-O fi lms by sputt ering , 1988 .

[16]  L.K.J. Vandamme,et al.  Experimental studies on 1/f noise , 1981 .

[17]  Levi,et al.  Normal-state transport parameters of epitaxial thin films of YBa2Cu3O7- delta. , 1988, Physical review. B, Condensed matter.

[18]  W. Lee,et al.  Noise and hysteresis in flux‐locked TlBaCaCuO SQUIDs , 1989 .

[19]  Mark Johnson,et al.  Magnetic flux noise in thin‐film rings of YBa2Cu3O7−δ , 1988 .

[20]  M. Weissman.  1/f noise and other slow, nonexponential kinetics in condensed matter. , 1988 .

[21]  Hoi Sing Kwok,et al.  As‐deposited Y‐Ba‐Cu‐O superconducting films on silicon at 400 °C , 1989 .

[22]  B. W. Ricketts,et al.  Hall effect measurements on a bulk YBa2Cu3O7 sample , 1987 .

[23]  Chen,et al.  1/f-noise-power measurements of copper oxide superconductors in the normal and superconducting states. , 1988, Physical review. B, Condensed matter.

[24]  P. M. Horn,et al.  Low-frequency fluctuations in solids: 1/f noise , 1981 .

[25]  Gurvitch,et al.  Resistivity of La1.825Sr0.175CuO4 and YBa2Cu3O7 to 1100 K: Absence of saturation and its implications. , 1987, Physical review letters.