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| Author | Arce, R.; de la Cruz, F.; Guimpel, J. | ||||
| Title | Superconducting behavior of amorphous Zr70Cu30 | Type | Journal Article | ||
| Year | 1983 | Publication | Solid State Communications | Abbreviated Journal | Solid State Commun. |
| Volume | 47 | Issue | 11 | Pages | 885-887 |
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| Abstract | Measurement of the Meissner penetration depth, λ(T) were made in amorphous Zr70Cu30 samples. The results indicate that this amorphous alloy behaves as a BCS superconductor with 2Δ(0)+45 degree rulekTc = 3.8, where Δ(0) is the superconducting energy gap at T=0 and Tc the critical temperature. It is also concluded that the low energy excitation, TLS, characteristics of amorphous material does not contribute to Tc. | ||||
| Address | Centro Atómico Bariloche – Instituto Balseiro | ||||
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| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0038-1098 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | BT @ pedrazp @ | Serial  |
532 | ||
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| Author | Guimpel, J.; de la Cruz, F. | ||||
| Title | Electrical resistivity of amorphous Zr70Cu30 and the Kondo like model | Type | Journal Article | ||
| Year | 1982 | Publication | Solid State Communications | Abbreviated Journal | Solid State Commun. |
| Volume | 44 | Issue | 7 | Pages | 1045-1046 |
| Keywords | Zr70Cu30; superconductivity; electrical resistivity; ZIRCONIUM COPPER ALLOYS | ||||
| Abstract | Electrical resistivity measurements of amorphous Zr70Cu30 as a function of the concentrations of two level systems show that a Kondo like theory cannot explain the observed temperature dependence. | ||||
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| ISSN | 0038-1098 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | BT @ pedrazp @ | Serial |
540 | ||
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| Author | Bressan, O.J.; Ridner, A.E.; Luengo, C.A.; Alascio, B. | ||||
| Title | On the evidence for electron-electron scattering in the electrical resistivity of In | Type | Journal Article | ||
| Year | 1970 | Publication | Solid State Communications | Abbreviated Journal | Solid State Commun. |
| Volume | 8 | Issue | 24 | Pages | 2129-2133 |
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| Abstract | Experimental measurements of the electrical magnetoresistivity of high purity Indium at low temperatures have been performed and clearly indicate that: 1. (a) A generalized Kohler's rule can be used to describe all experiments. 2. (b) A reliable method is therefore obtained for extrapolating the zero magnetic field resistivity to temperatures below the superconducting transition temperature. 3. (c) Clear-cut and reliable data show that no T2 dependence of the resistance is found; therefore no evidence of electron-electron interaction appears, contrary to information previously reported in the literature. |
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0038-1098 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | BT @ pedrazp @ | Serial |
548 | ||
| Permanent link to this record | |||||
| Author | Daudin, B. | ||||
| Title | Thermal conductivity of amorphous La70Cu30 | Type | Journal Article | ||
| Year | 1981 | Publication | Solid State Communications | Abbreviated Journal | Solid State Commun. |
| Volume | 37 | Issue | 2 | Pages | 149-152 |
| Keywords | La70Cu30; superconductivity; amorphous | ||||
| Abstract | We have measured in a temperature range of 0.6 to 6.5 K the thermal conductivity of various samples of amorphous La70Cu30 prepared by ultra rapid quenching. Below the superconducting critical temperature (Tc=3.85K) we found the classical amorphous behaviour and determined the coupling constant n0M2. Above Tc we found that the thermal conductivity was governed by the electron-phonon interaction and we discuss the results obtained. | ||||
| Address | Centro Atómico Bariloche – Instituto Balseiro | ||||
| 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 | 0038-1098 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | BT @ pedrazp @ | Serial |
556 | ||
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| Author | Arce, R.; de la Cruz, F.; Esquinazi, P. | ||||
| Title | Superconducting penetration depth in amorphous metals | Type | Journal Article | ||
| Year | 1981 | Publication | Solid State Communications | Abbreviated Journal | Solid State Commun. |
| Volume | 38 | Issue | 12 | Pages | 1253-1255 |
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| Abstract | We show that temperature dependent penetration depth measurements can be used to characterize the superconductive behaviour of amorphous metals. | ||||
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| ISSN | 0038-1098 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | BT @ pedrazp @ | Serial |
557 | ||
| Permanent link to this record | |||||
| Author | Arce, R.; de la Cruz, F.; Fink, H.J. | ||||
| Title | Model relating superconductive penetration depth and metallurgical phase separation in amorphous La70Cu30 | Type | Journal Article | ||
| Year | 1982 | Publication | Solid State Communications | Abbreviated Journal | Solid State Commun. |
| Volume | 42 | Issue | 8 | Pages | 575-577 |
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| Abstract | A model is proposed to account for the large increase in the measured penetration depth of superconducting, amorphous La70Cu30 when the specimens are annealed sufficiently long near, but below, the crystallization temperature. It is suggested that a metallurgical phase separation occurs with domain dimensions in the submicrometer range. Penetration depth measurements as a function of temperature in a weak magnetic field are a useful tool to detect changes in phase separation in high-K materials. | ||||
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| ISSN | 0038-1098 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | BT @ pedrazp @ | Serial |
567 | ||
| Permanent link to this record | |||||
| Author | Durán, C.; Esquinazi, P.; Fainstein, C.; Núñez Regueiro, M. | ||||
| Title | Anomalies in the internal friction and sound velocity in YBa2Cu3O7-x and EuBa2Cu3O7-x superconductors | Type | Journal Article | ||
| Year | 1988 | Publication | Solid State Communications | Abbreviated Journal | Solid State Commun. |
| Volume | 65 | Issue | 9 | Pages | 957-961 |
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| Abstract | Internal friction Q-1 and Young Modulus sound velocity vE measurements at 1 kHz in YBa2Cu3O7?x and EuBa2Cu3O7?x polycrystalline samples reveal anomalies at the superconducting transition and at not, vert, similar37 K. The anomaly in vE at not, vert, similar90 K is accompanied by an absorption peak and is in agreement with published ultrasonic measurements, suggesting a lattice deformation at the superconducting transition. | ||||
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| Language | Summary Language | Original Title | |||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0038-1098 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | BT @ pedrazp @ | Serial |
569 | ||
| Permanent link to this record | |||||
| Author | Braun, E.; Bürger, A.; Roden, B.; Sereni, J.G. | ||||
| Title | Spin glass-like behaviour of the singlet ground state system: ThTb | Type | Journal Article | ||
| Year | 1988 | Publication | Solid State Communications | Abbreviated Journal | Solid State Commun. |
| Volume | 66 | Issue | 11 | Pages | 1141-1144 |
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| Abstract | We have studied the temperature and field dependence of the magnetic susceptibility, X, on the single-ground-state Th1?nTbn system, in the 0.2 < n < 0.6 concentration range. The characteristic maximum of a spin glass transition was found at a temperature Tg, which increases linearly with the impurity concentration. As expected, the maximum of X is reduced by the increment of the applied magnetic field. The spin glass order parameter, as well as its critical exponent were evaluated by using the Sherrington-Kirkpatrick theory. | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0038-1098 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | BT @ pedrazp @ | Serial |
577 | ||
| Permanent link to this record | |||||
| Author | Castello, D.; Jaime, M.; Núñez Regueiro, M. | ||||
| Title | Thermal conductivity of high temperature superconductor TlBaCaCuO | Type | Journal Article | ||
| Year | 1991 | Publication | Solid State Communications | Abbreviated Journal | Solid State Commun. |
| Volume | 79 | Issue | 11 | Pages | 967-970 |
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| Abstract | We have measured the thermal conductivity of ceramic samples of TlBaCaCuO between 2 and 250 K. At high temperatures it follows a constant behaviour down to the superconducting transition temperature where a sudden increase of the thermal conductivity occurs, attributed to reduced phonon scattering by condensating electrons. At low temperatures a T2 law is observed, confirming the assumption that it is a common feature in most of the high temperature superconducting oxides. Phonon scattering against tunneling systems analogous to those found in amorphous solids can explain this behaviour. | ||||
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| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0038-1098 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | BT @ pedrazp @ | Serial |
581 | ||
| Permanent link to this record | |||||
| Author | Núñez Regueiro, M.; Izbizky, M.A.; Esquinazi, P. | ||||
| Title | Thermal conductivity and “disorder” in high temperature superconductors | Type | Journal Article | ||
| Year | 1988 | Publication | Solid State Communications | Abbreviated Journal | Solid State Commun. |
| Volume | 67 | Issue | 4 | Pages | 401-404 |
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| Abstract | We analyze the controversial thermal conductivity results on high temperature superconductors by scaling the data with material parameters to compare them to other materials with similar behaviour. We show that they have the same general features observed in amorphous and disordered crystalline materials. Possible origins of the disorder are discussed. | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0038-1098 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | BT @ pedrazp @ | Serial |
583 | ||
| Permanent link to this record | |||||