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From: ch@well.UUCP
Newsgroups: sci.electronics
Subject: Re: New superconducting (Houston)
Message-ID: <2608@well.UUCP>
Date: Wed, 18-Feb-87 22:25:37 EST
Article-I.D.: well.2608
Posted: Wed Feb 18 22:25:37 1987
Date-Received: Fri, 20-Feb-87 01:48:19 EST
References: <503@puff.WISC.EDU>
Reply-To: ch@well.UUCP (Chris Hayes)
Distribution: na
Lines: 26
Keywords: high-temperature superconductors

In article <503@puff.WISC.EDU> schumann@puff.WISC.EDU (Christopher Schumann) writes:
>This morning (Tuesday), I saw a small story on Headline News about some
>scientist at a Houston University (I think) that has made a great
>advancement in the practicality of superconducters.

What you are referring to, I believe, is detailed in Science magazine,
Vol. 235, 30 January, 1987. There are two seperate articles, pp. 531, and
567.

Briefly, the article details the research of several independent teams
who have reportedly observed the onset of superconductivity at temperatures
as high as 70 degrees Kelvin. The Houston team has observed an onset temperature
of 52 degrees Kelvin in a material that became fully superconductive at 25 K.
The material used was a lathanum-barium-copper-oxygen compound under hydrostatic
pressure.

Scientifically, these findings are notable because they seem to indicate
that superconductivity may be possible at at temperatures higher than those
predicted by previous theories. Practically, the availability of inexpensive
materials that superconduct at much higher temperatures than previously
known materials will key the development of motors, coils, magnets, etc.,
of unprecedented efficiency, size, and power.
-- 
	Chris Hayes
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