✦ LIBER ✦

Glassy states with frozen-in currents and paramagnetism of granular high temperature superconductors

✍ Scribed by S.V. Panyukov; A.D. Zaikin

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 326 KB
Volume: 203
Category: Article
ISSN: 0921-4526
DOI: 10.1016/0921-4526(94)90106-6

No coin nor oath required. For personal study only.

✦ Synopsis

Interaction between spontaneous current loops (orbital magnetic moments) induced by weak links with negative coupling energies (n-junctions) can cause paramagnetism of granular high-temperature superconductors. For a not very small concentration of n-junctions p interaction between current loops yields new types of long-range order, such as superconductivity with frozen-in currents, normal and superconducting spin-glass-like states. At certain values of p the system consists of percolating superconducting clusters and normal regions with frozen-in magnetic field and ordered orbital magnetic moments.

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