posted on 2018-01-04, 17:22authored byWalid Y. Hussen
The aim of this project was an investigation of the thermal and magnetic properties
of highly correlated electron systems. To carry out the experiments it was
necessary to design, construct and automate a calorimeter and a Faraday
susceptibility balance. The calorimeter was used to determine the specific heat of
powder samples from 1.5 K to 300 K using a pulse technique. Initially the
performance of the calorimeter was verified using spectrographically pure copper
samples. The specific heat of CePt2 and LaPt2 has been measured in the temperature
range from 3 K to 100 K. The f-electron contribution to the specific heat of CePt2
was determined by subtracting the measured specific heat of isostructural LaPt2
from CePt2. This difference revealed a Schottky anomaly at temperatures between
15 K and 100 K. which enabled the crystal-field splitting of the J=5/2 ground state
manifold of Ce3+ to be deduced. [Continues.]
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Publication date
1990
Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.