Publication Date:
2001-12-12
Description:
Superconductors can be used as dissipation-free electrical conductors as long as vortices are pinned. Vortices in high-temperature superconductors, however, behave anomalously, reflecting the anisotropic layered structure, and can move readily, thus preventing their practical use. Specifically, in a magnetic field tilted toward the layer plane, a special vortex arrangement (chain-lattice state) is formed. Real-time observation of vortices using high-resolution Lorentz microscopy revealed that the images of chain vortices begin to disappear at a much lower temperature, Td, than the superconducting transition temperature, Tc. We attribute this image disappearance to the longitudinal oscillation of vortices along the chains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Matsuda, T -- Kamimura, O -- Kasai, H -- Harada, K -- Yoshida, T -- Akashi, T -- Tonomura, A -- Nakayama, Y -- Shimoyama, J -- Kishio, K -- Hanaguri, T -- Kitazawa, K -- New York, N.Y. -- Science. 2001 Dec 7;294(5549):2136-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Advanced Research Laboratory, Hitachi Ltd., Hatoyama, Saitama 350-0395, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11739950" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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