| Records |
| Author |
de la Cruz, F.; de la Cruz, M.E.; Civale, L.; Arce, R. |
| Title |
Hybridization effects between d and s bans in amorphous materials |
Type |
Conference Article |
| Year |
1984 |
Publication  |
Proceedings of LT-17 |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
1301 |
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| Publisher |
Elsevier Science Publishers BV |
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Conference |
LT-17 |
| Notes |
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Approved |
no |
| Call Number |
BT @ pedrazp @ |
Serial |
812 |
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| Author |
de la Cruz, F.; López, D.; Righi, E. F.; Nieva, G. |
| Title |
Comparative Study of Vortex Correlation in Twinned and Untwinned YBa2Cu3O7 Single Crystals |
Type |
Conference Article |
| Year |
1996 |
Publication |
Proceedings of the 10th Anniversary Hts Workshop on Physics, Materials and Applications |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
395 |
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| Publisher |
World Scientific Publishing Company |
Place of Publication |
Singapore |
Editor |
Batlogg, B. |
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Original Title |
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Series Issue |
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Edition |
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| ISSN |
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ISBN |
9810227159 |
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Conference |
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| Notes |
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Approved |
no |
| Call Number |
BT @ gnieva @ |
Serial |
461 |
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| Author |
López, D.; Righi, E. F.; Nieva, G.; de la Cruz, F.; Kwok, W. K.; Fendrich, J. A.; Crabtree, G. W.; Paulius, L. |
| Title |
Discontinuous Onset of the c-axis Vortex Correlation at the Melting Transition in YBa2Cu3O7 |
Type |
Conference Article |
| Year |
1996 |
Publication |
Proceedings of the 10th Anniversary Hts Workshop on Physics, Materials and Applications |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
411 |
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| Abstract |
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| Address |
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| Corporate Author |
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| Publisher |
World Scientific Publishing Company |
Place of Publication |
Singapore |
Editor |
Batlogg, B. |
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Summary Language |
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Original Title |
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Series Title |
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| ISSN |
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ISBN |
9810227159 |
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| Notes |
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Approved |
no |
| Call Number |
BT @ gnieva @ |
Serial |
462 |
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| Author |
Valenzuela, S.O.; Ferrari, H.; Bekeris, V.; Marconi, M.C.; Guimpel, J.; de la Cruz, F. |
| Title |
Nonconventional short-time dc magnetometer for superconducting films |
Type |
Journal Article |
| Year |
1998 |
Publication |
REVIEW OF SCIENTIFIC INSTRUMENTS |
Abbreviated Journal |
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| Volume |
69 |
Issue |
1 |
Pages |
251-254 |
| Keywords |
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| 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. |
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| ISSN |
0034-6748 |
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| Notes |
ISI:000071578800041 |
Approved |
no |
| Call Number |
BT @ hernan @ |
Serial |
185 |
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| Author |
Cotignola, J.M.; de la Cruz, F.; de la Cruz, M.E.; Platzeck, R.P. |
| Title |
Thermal Conductivity of Polycrystalline Zinc below 1 K |
Type |
Journal Article |
| Year |
1967 |
Publication |
Review of Scientific Instruments |
Abbreviated Journal |
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| Volume |
38 |
Issue |
1 |
Pages |
87-92 |
| Keywords |
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| Abstract |
Measurements of the thermal conductivity of samples of polycrystalline zinc of thickness 0.1 mm have been carried out between 0.12 and 0.9°K in the normal as well as in the superconducting state to investigate the usefulness of zinc as a thermal switch. The conductivity in the normal state shows a linear dependence on temperature. In the superconducting state it shows a behavior typical of electronic conductivity down to the lowest temperature measured. By applying a magnetic field between 40 and 5000 Oe, magnetoresistivity was also investigated and a strong dependence of thermal conductivity on field was found. Electrical resistivity measurements were performed in magnetic fields at liquid 4He temperatures. The resistivity was found to be independent of temperature for fields up to 9000 Oe. The effect of solder joints using Cd, Sn, In, Zn, and Wood's metal was also investigated, Cd giving the least resistance. The measurements show that zinc should be a useful thermal switch for temperatures below 0.1 and 0.2°K, though effect of a magnetic field on the normal conductivity must be carefully considered. |
| Address |
Centro Atómico Bariloche – Instituto Balseiro |
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Thesis |
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| Publisher |
AIP |
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no |
| Call Number |
BT @ pedrazp @ cotignola:87 |
Serial |
533 |
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| Author |
Tutzauer, H.; Esquinazi, P.; de la Cruz, M.E.; de la Cruz, F. |
| Title |
Production of ribbon quenched samples using an arc furnace |
Type |
Journal Article |
| Year |
1980 |
Publication |
Review of Scientific Instruments |
Abbreviated Journal |
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| 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 |
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Thesis |
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| Publisher |
AIP |
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Approved |
no |
| Call Number |
BT @ pedrazp @ tutzauer:855 |
Serial |
534 |
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| Author |
de la Cruz, F.; Bressan, O.J. |
| Title |
Sensitive Hot Wire Level Detector for Cryogenic Liquids |
Type |
Journal Article |
| Year |
1969 |
Publication |
Review of Scientific Instruments |
Abbreviated Journal |
Rev. Sci. Instrum. |
| Volume |
40 |
Issue |
3 |
Pages |
483-486 |
| Keywords |
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| Abstract |
A very simple and highly sensitive ``hot wire'' type level detector to be used with cryogenic liquids is described. The hot filament is made of tungsten wire of about 4 µ diam. The tests on the sensor were made moving the filament in and out of the quiescent surfaces of liquid helium and nitrogen. The results showed 0.006 mm sensitivity in the determination of liquid helium level and 0.002 mm sensitivity in the case of liquid nitrogen level. The sensor is assembled in such a way that it can be used without special precautions during indefinite periods of time. For the case when the full capabilities of the sensor are not necessary, a simple circuit is presented. |
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Approved |
no |
| Call Number |
BT @ pedrazp @ |
Serial |
549 |
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| Author |
Ferrari, H.; Valenzuela, S.O.; Bekeris, V.; Guimpel, J.; de la Cruz, F. |
| Title |
Short-time magnetization in superconducting thin films |
Type |
Journal Article |
| Year |
1998 |
Publication |
REVISTA MEXICANA DE FISICA |
Abbreviated Journal |
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| Volume |
44 |
Issue |
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Pages |
193-195 |
| Keywords |
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| Abstract |
We have investigated the magnetization in thin (Y;Gd)Ba2Cu3O7-delta superconducting films in the 100 μs time scale. Magnetic moment was measured with a non-conventional technique that combines the use of a pulsed magnetic field and a synchronized pulsed laser. Both virgin and magnetically cycled samples were examined and results are described within Bean's critical state model. |
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Edition |
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| ISSN |
0035-001X |
ISBN |
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| Notes |
ISI:000077675900051 |
Approved |
no |
| Call Number |
BT @ hernan @ |
Serial |
182 |
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| Author |
Fasano, Y.; de Seta, M.; Menghini, M.; Pastoriza, H.; de la Cruz, F. |
| Title |
Imaging the structure of the interface between symmetries interconnected by a discontinuous transition |
Type |
Journal Article |
| Year |
2003 |
Publication |
Solid State Communications |
Abbreviated Journal |
Solid State Commun. |
| Volume |
128 |
Issue |
3-4 |
Pages |
51-55 |
| Keywords |
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| Abstract |
We have been able to observe with single particle resolution the interface between two structural symmetries that cannot be interconnected by a continuous transition. By means of an engineered 2D potential that pins the extremity of vortex strings a square symmetry was imposed at the surface of a 3D vortex solid. Using the Bitter decoration technique and on account of the continuous vortex symmetry, we visualize how the induced structure transforms along the vortex direction before changing into the expected hexagonal structure at a finite distance from the surface. |
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no |
| Call Number |
BT @ hernan @ fasano03a |
Serial |
18 |
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| Author |
Grigera, S.A.; Morré, E.; Osquiguil, E.; Nieva, G.; De la Cruz, F. |
| Title |
Nonlocal transport properties and size effects in heavily twinned YBa2Cu3O7-delta single crystals |
Type |
Journal Article |
| Year |
1998 |
Publication |
Solid State Communications |
Abbreviated Journal |
Solid State Commun. |
| Volume |
107 |
Issue |
7 |
Pages |
335-339 |
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| Abstract |
We demonstrate experimentally that when the vortex correlation length in the liquid state becomes of the order of the sample thickness, size effects dominate the transport properties of the macroscopic vortex structures, implying a nonlocal response in the transformer experiments. |
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| ISSN |
0038-1098 |
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| Notes |
ISI:000074907100004 |
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no |
| Call Number |
BT @ hernan @ |
Serial |
237 |
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