Date of Award

5-2012

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Physics

First Advisor

Gregory G. Kenning, Ph.D.

Second Advisor

A. J. Haija, Ph.D.

Third Advisor

Majid Karimi, Ph.D.

Fourth Advisor

Devki N. Talwar, Ph.D.

Abstract

The metallic spin-glass CuMn has been prepared for studies pertaining to the `End of Aging'. A highly specialized machine known as a dual DC SQUID magnetometer has been developed and assembled to perform low temperature measurements of the thermoremanent magnetization (TRM) of this material. The spin glass is cooled below its glass transition temperature and held in an external field for some waiting time, where aging takes place. After the field is cut to zero, the TRM decay is recorded for long measurement times. This process is repeated for various measurement temperatures and waiting times, and then analyzed under the premise of system improvement and potential determination of the `end of aging'. All experiments have been completely automated using National Instruments LabVIEW interfacing.

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