On empirical rules for bulk and fluctuating superconductivity in amorphous metals

Clicks: 309
ID: 268708
1985
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Systematic studies on the temperature- and magnetic field-dependent electrical resistivity of superconducting amorphous metals such as ZrX (X = Rh, Ru, Cu, Ir, Ni, Fe) and MoB have reveealed simple emperical rules exerted between their bulk and fluctuating superconductivity. All the materials with high resistivity ϱ (around 150–300 microohms cm) show the monotonic increase of ϱ(T) on cooling and then exhibit a broad peak at the temperature Tp. A quite simple correlation between Tp and Tc is found, i.e., Tp = (2.75±0.25)Tc. All the measured materials with an upper critical-field gradient −dHc2/dT)Tc of 2–3 T/K show the magnetic-field-induced saturation of the resistivity at the field Hs. Although Hs depends sensitively on temperatures especially near Tc, the correlation H=(2±0.5)Hc2 between Hs and Hc2, is found to hold at low temperatures, ≡T/Tc$̌= 0.5. The presence of both Tp and Hs closely related with Tc and Hc2, respectively, is reasonabl interpreted basically in terms of pronounced effects of superconducting fluctuations on the low temperature electrical transport properties. Further, (almost) saturated resistivity ϱ(T, H$̌= Hs) in steady field higher than Hs exhibits a singular -log T dependence over the wide range of temperatures. This is found just below the temperature where the positive magnetoresistance effect starts to be observed. We believe that these three empirical rules revealed in the present systems hold universally in superconducting amorphous metals with extreme homogeneity and with high resistivity.
Reference Key
söldner1985physicaon Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors N. Toyota,H. Adrian,A. Inoue,K. Matsuzaki,T. Fukase,K. Fukamichi,T. Masumoto,Y. Muto,R. Müller,L. Söldner;N. Toyota;H. Adrian;A. Inoue;K. Matsuzaki;T. Fukase;K. Fukamichi;T. Masumoto;Y. Muto;R. Müller;L. Söldner;
Journal Physica B+C
Year 1985
DOI
10.1016/0378-4363(85)90482-6
URL
https://sciprofiles.com/publication/view/5efde4e6ebbfab48af55a38e594226ac
Keywords
temperature amorphous superconducting electrical extreme hc2 empirical rules fluctuating superconductivity

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.