[SI-LIST] Re: si-list Digest V4 #451

Hi Zhangkun,

Yes, the resistance of metal is dependent on temperature.

Electrical resistance comes from electron-electron collisions near the
Fermi surface.  The mean free path of the electrons determines the rate
of collisions and is temperature dependent.

Depending on the purity of the metal (and possible crystalline
structure), the electrical resistance can change by many orders of
magnitude between room temperature and liquid helium (4 Kelvin).

See Chapter 6 of "Intro to Solid State Physics" by C. Kittel for a
thorough discussion.

Thanks!
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Daniel Chow, Ph.D.
Sr. Product Engineer
ALTERA
Office: (408) 544-8100
Fax: (408) 544-7602
Email: dchow@xxxxxxxxxx
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-----Original Message-----
Date: Mon, 22 Nov 2004 14:00:02 +0800
From: Zhangkun <zhang_kun@xxxxxxxxxx>
Subject: [SI-LIST] Effect of Temperature on Metal Conductivity

Dear All
Is there any effect of temperature on metal conductivity? In another
word, does the resistance of metal change with the temperature? How
much?

Best Regards

Zhangkun
2004.11.22
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