Re: Superconductors and Piezoelectrics

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Article #359

#359

From: Kent Goeking
Date: Mon, 28 Dec 1992 15:23

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In article <1992Dec21.005356.18395@athena.mit.edu> solman@athena.mit.edu (Jason W Solinsky) writes:
>Hi all.
>
>I have a couple of questions that I was wondering if anybody here could answer.
>
>First off, I'm curious about whether NbN is a superconductor. I just saw a
>paper which said it was, and that its acoustic attenuation was dramatically
>effected by the superconducting transition, falling to zero a degrees beneath
>the Tc. I had some reason to believe that NbN was NOT a superconductor
>and I'd appreciate it if anybody here can clarify that for me.
>
... second question deleted... (i.e. I don't know)
>
>Jason W. Solinsky

According to my handy book of knowledge (CRC Chemistry and Physics
Handbook) NbN or rather NNb is a superconductor with the following
transition temperatures:

     NNb (whiskers)              10-14.5   K
     NNb (diffusion wires)       16.10     K
     NNb (film)                  6-9       K
     N0.988Nb                    14.9      K
     N0.824-0.988Nb              14.4-15.3 K
     N0.70-0.795Nb               11.3-12.9 K

Hope this helps,

Kent Goeking
Creare Inc.
kwg@spock.creare.com

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Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!uwm.edu!linac!att!bu.edu!dartvax!fluent!spock!kwg
From: kwg@creare.com (Kent Goeking)
Newsgroups: sci.materials
Subject: Re: Superconductors and Piezoelectrics
Message-ID: <Bzz6r0.H8z@creare.com>
Date: 28 Dec 92 15:23:22 GMT
References: <1992Dec21.005356.18395@athena.mit.edu>
Reply-To: kwg@spock.creare.com (Kent Goeking)
Organization: Creare Inc., Hanover, NH
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