Rorschach, Harold E., Jr.2016-04-222016-04-221964Mallon, Richard Glenn. "Superconductivity in molybdenum." (1964) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/89845">https://hdl.handle.net/1911/89845</a>.https://hdl.handle.net/1911/89845In order to determine whether molybdenum is a type I or type II superconductor, magnetic measurements are being undertaken. The molybdenum samples were prepared by electron-beam float-zone refining. Resistivity measurements on one sample indicated that it is of adequate purity. In initial experiments in a helium-4 cryostat, no superconductivity was observed at temperatures down to about 0.9° K. In order to reach lower temperatures, a helium-3 cryostat of the single condensation type has been built. Details of the design and results of preliminary operation are discussed. In this cryostat, superconductivity in molybdenum has been observed. At 0.65° K in an external field of 15 oersteds, magnetic induction in the sample was zero.32 ppengCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.ThesisRICE0879reformatted digitalThesis Phys. 1964 Mallon