toggle visibility Search & Display Options

Select All    Deselect All
 |   | 
Details
   print
  Records Links
Author (down) Valenzuela, S.O.; Ferrari, H.; Bekeris, V.; Marconi, M.C.; Guimpel, J.; de la Cruz, F. openurl 
  Title Nonconventional short-time dc magnetometer for superconducting films Type Journal Article
  Year 1998 Publication REVIEW OF SCIENTIFIC INSTRUMENTS Abbreviated Journal  
  Volume 69 Issue 1 Pages 251-254  
  Keywords  
  Abstract A nonconventional technique for the measurement of magnetic relaxation in superconducting films at short times (similar to 10(-5) s) is described. This technique combines the application of a pulsed magnetic field and a synchronized high-energy pulsed laser. Remanent magnetic relaxation in (Y;Gd)Ba2Cu3O7-delta thin films is reported over five decades time at reduced temperatures above 0.8. (C) 1998 American Institute of Physics.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0034-6748 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000071578800041 Approved no  
  Call Number BT @ hernan @ Serial 185  
Permanent link to this record
 

 
Author (down) Tutzauer, H.; Esquinazi, P.; de la Cruz, M.E.; de la Cruz, F. url  doi
openurl 
  Title Production of ribbon quenched samples using an arc furnace Type Journal Article
  Year 1980 Publication Review of Scientific Instruments Abbreviated Journal  
  Volume 51 Issue 6 Pages 855-856  
  Keywords FABRICATION; QUENCHING; ELECTRIC ARCS; FURNACES; METALS; ROTATION; CYLINDERS; DATA; LANTHANUM ALLOYS; COPPER ALLOYS; GOLD ALLOYS  
  Abstract We describe a new device to produce ribbons of disordered metals by ultrarapid quenching combining an arc furnace with a rotating cylinder. The characterization of samples of disordered La70 Cu30 and La76Au24 prepared using this method shows good agreement with those obtained by other authors for the same alloys.  
  Address Centro Atómico Bariloche – Instituto Balseiro  
  Corporate Author Thesis  
  Publisher AIP Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number BT @ pedrazp @ tutzauer:855 Serial 534  
Permanent link to this record
 

 
Author (down) Safar, H.; Rodriguez, E.; de la Cruz, F.; Gammel, P.L.; Schneemeyer, L.F.; Bishop, D.J. url  doi
openurl 
  Title Observation of two-dimensional vortices in Bi2Sr2CaCu2Ox Type Journal Article
  Year 1992 Publication Physical Review B Abbreviated Journal Phys. Rev. B  
  Volume 46 Issue 21 Pages 14238-14241  
  Keywords  
  Abstract We report transport measurements in the mixed state of single crystals of Bi2Sr2CaCu2Ox using a modified version of the dc flux transformer geometry pioneered by Giaever in low-Tc materials. We find that over a wide range of the phase diagram the vortices are effectively two dimensional in character. Our results suggest that vortex cutting is an efficient process and that it is unlikely that the vortices are strongly entangled in this region of the phase diagram.  
  Address  
  Corporate Author Thesis  
  Publisher American Physical Society Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number BT @ pedrazp @ 10.1103/PhysRevB.46.14238 Serial 801  
Permanent link to this record
 

 
Author (down) Safar, H.; Lopez, D.; Gammel, P.L.; Huse, D.A.; Majumdar, S.N.; Schneemeyer, L.F.; Bishop, D.J.; Nieva, G.; de la Cruz, F. openurl 
  Title Experimental evidence of a non-local resistivity in a vortex line liquid Type Journal Article
  Year 1994 Publication Physica C: Superconductivity Abbreviated Journal Physica C  
  Volume 235-240 Issue 4 Pages 2581-2582  
  Keywords  
  Abstract We present transport measurements on YBCO single crystals in the vortex liquid regime using the DC flux transformer geometry. We show that the data are inconsistent with the material being an anisotropic, local conductor. The results provided evidence for non-local transport which indicate that there can be correlated vortex motion over macroscopic distances in this system. We have shown that this correlated vortex motion can be destroyed by either thermal fluctuations or the applications of large driving forces.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number BT @ gnieva @ Serial 450  
Permanent link to this record
 

 
Author (down) Safar, H.; Gammel, P.L.; Huse, D.A.; Majumdar, S.N.; Schneemeyer, L.F.; Bishop, D.J.; Lopez, D.; Nieva, G.L.; de la Cruz, F. doi  openurl
  Title Observation of a nonlocal conductivity in the mixed state of YBa2Cu3O7-d: Experimental evidence for a vortex line liquid Type Journal Article
  Year 1994 Publication Physical Review Letters Abbreviated Journal Phys. Rev. Lett.  
  Volume 72 Issue 8 Pages 1272  
  Keywords  
  Abstract We report on transport measurements in the mixed state of YBa2Cu3O7 single crystals using the dc flux transformer geometry. In the vortex fluid regime we have observed the onset of a nonlocal conductivity. At lower temperatures, close to but above the phase transition temperature the vortices become effectively three dimensional in character. This is in sharp contrast to recent flux transformer experiments on Bi2Sr2CaCu2O which have failed to see a nonlocal conductivity, confirming the two-dimensional character at high temperatures of the vortices in that system. These observations suggest that in a finite temperature interval, the vortex state in YBa2Cu3O7 is a line liquid.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number BT @ gnieva @ Serial 443  
Permanent link to this record
 

 
Author (down) Safar, H.; Durán, C.; Guimpel, J.; Civale, L.; Luzuriaga, J.; Rodríguez, E.; de la Cruz, F.; Fainstein, C.; Schneemeyer, L.F.; Waszczak, J.V. url  doi
openurl 
  Title Logarithmic to nonlogarithmic flux creep transition and magnetic flux hardening in BiSrCaCuO superconducting ceramics Type Journal Article
  Year 1989 Publication Physica C: Superconductivity Abbreviated Journal  
  Volume 162-164, Part 1 Issue Pages 665-666  
  Keywords  
  Abstract A sharp temperature and field dependent transition from a logarithmic to a non-logarithmic flux creep behavior has been found in BiSrCaCuO superconductors. The transition is not followed by any noticeable change in the magnetization. However, vibrating reed measurements show that it coincides with a strong hardening of the magnetic structure. The transition occurs at fields and temperatures well below the reversibility line. The possible relation to the recently proposed flux lattice melting is discussed.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0921-4534 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number BT @ jguimpel @ Serial 626  
Permanent link to this record
 

 
Author (down) Safar, H.; Durán, C.; Guimpel, J.; Civale, L.; Luzuriaga, J.; Rodriguez, E.; de la Cruz, F.; Fainstein, C.; Schneemeyer, L.F.; Waszczak, J.V. url  doi
openurl 
  Title Logarithmic-to-nonlogarithmic flux-creep transition and magnetic-flux hardening in Bi-Sr-Ca-Cu-O superconducting ceramics Type Journal Article
  Year 1989 Publication Physical Review B Abbreviated Journal Phys. Rev. B  
  Volume 40 Issue 10 Pages 7380  
  Keywords  
  Abstract A sharp temperature- and field-dependent transition from a logarithmic to a nonlogarithmic flux-creep behavior has been found in Bi-Sr-Ca-Cu-O superconductors. The transition is not followed by any noticeable change in the magnetization. However, vibrating-reed measurements show that it coincides with a strong hardening of the magnetic structure. The transition occurs at fields and temperatures well below the reversibility line. The possible relation to the recently proposed flux lattice melting is discussed.  
  Address  
  Corporate Author Thesis  
  Publisher American Physical Society Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number BT @ jguimpel @ 10.1103/PhysRevB.40.7380 Serial 627  
Permanent link to this record
 

 
Author (down) Rodríguez, E.; Duran, C.; Luzuriaga, J.; de la Cruz, F.; Fainstein, C. doi  openurl
  Title Anomalous behaviour of the vortex structure in Bi4Ca2Sr4Cu4O16+y measured with a vibrating reed at low magnetic fields Type Journal Article
  Year 1990 Publication Physica C: Superconductivity Abbreviated Journal Physica C  
  Volume 165 Issue 3-4 Pages 315-320  
  Keywords  
  Abstract The response of the vortex structure in ceramic samples of Bi4Ca2Sr4Cu4O16+y has been measured by means of a vibrating reed technique in magnetic fields below 0.2 T. An anomally in the response of the reed is seen at temperatures of around 30 to 40 K, well below the critical temperature, indicating a transition similar to that attributed to a melting of the Flux Line Lattice. There is a shift in the temperature at which the anomaly is detected when one increases the driving force on the reed, while the dissipation shows a maximum associated to the transition which scales with the square of the applied magnetic field. Comparison with magnetization measurements shows that there is non-zero critical current at the same temperature where the anomalous behaviour is detected with our technique.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0921-4534 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:A1990CN49800014 Approved no  
  Call Number BT @ hernan @ Serial 261  
Permanent link to this record
 

 
Author (down) Righi, E. F.; Grigera, S. A.; Nieva, G.; de la Cruz, F. openurl 
  Title Vortex phase coherence along the c axis in YBa2Cu3O7-d Type Journal Article
  Year 1998 Publication Superconduvtivity Reviews Abbreviated Journal  
  Volume 2 Issue Pages 205  
  Keywords  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1054-2698 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number BT @ gnieva @ Serial 465  
Permanent link to this record
 

 
Author (down) Ridner, A.; Martínez, E. N.; de la Cruz, F. url  doi
openurl 
  Title Surface-Temperature Determination in the Kapitza Problem Type Journal Article
  Year 1975 Publication Physical Review Letters Abbreviated Journal Phys. Rev. Lett.  
  Volume 35 Issue 13 Pages 855-858  
  Keywords  
  Abstract It is shown that surface superconductivity can be used as a localized thermometer. Its application to the study of the thermal boundary resistance at a Pb-4He interface provides the first experimental evidence for the existence of a rapid temperature variation within microscopic distances from the surface.  
  Address  
  Corporate Author Thesis  
  Publisher American Physical Society Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number BT @ pedrazp @ 10.1103/PhysRevLett.35.855 Serial 553  
Permanent link to this record
Select All    Deselect All
 |   | 
Details
   print

Save Citations:
Export Records: