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- Path: 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
- Lines: 31
-
- 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
-