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- Title
Chemomagnetism, Magnetoconcentration Effect, and “Fishtail” Anomaly in Chemically Induced Granular Superconductors.
- Authors
Sergeenkov, S. A.
- Abstract
Within a 2D model of Josephson junction arrays (created by a 2D network of twin boundary dislocations with strain fields acting as an insulating barrier between hole-rich domains in underdoped crystals), a few novel effects expected to occur in intrinsically granular material are predicted, including (i) Josephson chemomagnetism (chemically induced magnetic moment in zero applied magnetic field) and its influence on a low-field magnetization (chemically induced paramagnetic Meissner effect) and (ii) the magnetoconcentration effect (creation of oxygen vacancies in applied magnetic field) and its influence on a high-field magnetization (the chemically induced analogue of the "fishtail" anomaly). The conditions under which these effects can be experimentally measured in nonstoichiometric high-T[sub c] superconductors are discussed.
- Subjects
SUPERCONDUCTORS; MAGNETOCHEMISTRY; JOSEPHSON junctions
- Publication
JETP Letters, 2003, Vol 77, Issue 2, p94
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.1564227