Caltech Library System

About | Browse | Search | Caltech Student Instructions

Type of Document	Dissertation
Author	Marin, Jean-Francois
URN	etd-04102006-131108
Persistent URL	http://resolver.caltech.edu/CaltechETD:etd-04102006-131108
Title	Transitions in chromium
Degree	PhD
Option	Mechanical Engineering
Advisory Committee	Advisor Name Title Pol E. Duwez Committee Chair
Keywords	none
Date of Defense	1961-01-01
Availability	unrestricted
Abstract The presence of a transition in pure chromium around 40C (from 25C to 65C according to the specimen investigated) is evidenced by the anomalous behavior of various physical properties in the vicinity of the transition. Four different properties - electrical resistivity, Young's modulus and Poisson's ratio, Hall coefficient, specific heat - have been investigated on some of five different specimens in temperature ranges including the transition temperature. The shape and magnitude of the observed anomalies for different properties and different specimens are compared, together with the possible effect of impurities on the transition. The relationship between these anomalies and the transition from an antiferromagnetic to a paramagnetic structure is discussed in connection with neutron diffraction experiments and anomalies in other antiferromagnetic materials reported by other workers.
Files	Filename       Size       Approximate Download Time (Hours:Minutes:Seconds)     28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access    Marin_jf_1961.pdf 3.04 Mb 00:14:05 00:07:14 00:06:20 00:03:10 00:00:16