Undergraduate Thesis Or Project

 

Rapid Microwave Synthesis of the Iron Arsenides NdFeAsO and NdFe0.9Co0.1AsO Public Deposited

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  • The future of iron pnictide superconductors in technology is still undecided. While these materials are now known to possess high critical temperatures and critical magnetic fields processing methods for these materials are still in their infancy. Recently we have been investigating possible ways to speed up the synthetic process for obtaining polycrystalline iron arsenide superconductors and other transition metal pnictides. Here we report the synthesis of NdFeAsO and NdFe₀.₉Co₀.₁AsO in less than one hour total exposure to microwave radiation using a secondary microwave susceptor to surround the reaction ampoule. Magnetic susceptibility and electronic resistivity measurements reveal the Co doped sample to be of high quality with a narrow transition range.
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  • Muir, Sean and Subramanian, Mas and Rachdi, Omar. "Rapid Microwave Synthesis of Iron Arsenides NdFeAsO and NdFe0.9Co0.1AsO." ScienceDirect. (2011): n. page. 798-800.
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  • This work was supported by NSF grant DMR 0804167.
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  • PDF file, 2.23 MB, Foxit Reader or any generic PDF file reader can read this document.
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  • description.provenance : Approved for entry into archive by Sue Kunda(sue.kunda@oregonstate.edu) on 2012-06-12T23:11:58Z (GMT) No. of bitstreams: 3 Sean Muir and Omar Rachdi - NdFeAsO - microwave synthesis.pdf: 2282723 bytes, checksum: 14bda0ecce120b78c01c84e3f8731258 (MD5) license_rdf: 22765 bytes, checksum: 56265f5776a16a05899187d30899c530 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)
  • description.provenance : Made available in DSpace on 2012-06-12T23:11:58Z (GMT). No. of bitstreams: 3 Sean Muir and Omar Rachdi - NdFeAsO - microwave synthesis.pdf: 2282723 bytes, checksum: 14bda0ecce120b78c01c84e3f8731258 (MD5) license_rdf: 22765 bytes, checksum: 56265f5776a16a05899187d30899c530 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2011-11-30
  • description.provenance : Submitted by Omar Rachdi (rachdio@onid.orst.edu) on 2012-06-05T20:39:30Z No. of bitstreams: 3 Sean Muir and Omar Rachdi - NdFeAsO - microwave synthesis.pdf: 2282723 bytes, checksum: 14bda0ecce120b78c01c84e3f8731258 (MD5) license_rdf: 22765 bytes, checksum: 56265f5776a16a05899187d30899c530 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)

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