NDLI: High-Tc superconductors synthesis using ferroelectric hosts: barium sodium niobate doped with copper and calcium

Content Provider	IEEE Xplore Digital Library
Author	Luiz, A.M. Neto, J.M. Da Silva, M.R.
Copyright Year	2002
Abstract	From the suggestion that ferroelectric host materials could be used in the search for the synthesis of new high-Tc superconductors, we have synthesized materials derived from barium sodium niobate. Measurements on magnetization, ac susceptibility and resistivity are reported. The materials change from weakly paramagnetic to weakly diamagnetic at low temperatures, when the time of oxygen annealing is reduced, but with high resistivity. With the increase of temperature, a strong decrease in resistivity (of the order of 10/sup 6/ /spl Omega/ cm), with diamagnetism, has been observed for temperatures above 1000 K.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1981
Ending Page	1982
Page Count	2
File Size	179593
File Format	PDF
ISSN	10518223
Volume Number	7
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	High temperature superconductors Ferroelectric materials Barium Paramagnetic materials Magnetic materials Superconducting materials Conductivity Niobium compounds Magnetization Magnetic susceptibility
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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