For gold, just look it up in Physics of Semiconductor Devices by S. M. Sze. Manu -----Original Message----- From: mems-talk-bounces@memsnet.org [mailto:mems-talk-bounces@memsnet.org] On Behalf Of Bahram Ganjipour Sent: Wednesday, January 30, 2008 3:12 AM To: mems-talk@memsnet.org Subject: [mems-talk] diffusion constants in GaAs Hello Everyone, I am looking for the diffusion constants of gold in GaAs , Platinum in GaAs and Nickel in GaAs. I would greatly appreciate any guidance towards papers or reference volumes that might include this information. I have come up dry with a number of different references, including the CRC Handbooks. Thank you very much for your help