Primavesi, G.J. (1972) Some crystal field effects in Nd(_x)Gd(_1-x)Co(_2). Doctoral thesis, Durham University.
This work describes the design and construction of a self-balancing vibrating sample magnetometer. The instrument was used to study some of the magnetic properties of the pseudobinary compounds, (Nd(_x)Gd(_1-x))Co(_2). The structural and magnetic data for certain compositions within the series show deviations from the behaviour expected from a simple ferrimagnetic system. In particular one composition exhibits three apparent compensation points in its remenance versus temperature curve, a unique phenomenon. These anomalies are shown to arise from the effects of the crystal field and internal magnetic field upon the tripositive neodymium ion. A consistent semi-quantitative picture of the process is presented which accounts for the observations provided that the easy axis in the compounds is the 111 direction.
|Item Type:||Thesis (Doctoral)|
|Award:||Doctor of Philosophy|
|Copyright:||Copyright of this thesis is held by the author|
|Deposited On:||13 Nov 2013 16:18|