Abstract
Design features of a simple, inexpensive and versatile homemade vibrating-sample magnetometer for low temperature measurements are described. The vibrating-sample magnetometer measures the magnetic moment of a sample when it is vibrated perpendicularly to a uniform magnetizing field. This paper deals with some variation and improvement of the mechanical design on the original Foner design. In particular, the loudspeaker assembly (vibrator) and a method to reduce the positioning error from the sample displacement in the horizontal plane, are given. As a typical operating characteristic, the temperature dependence of the magnetization curves for the samples of amorphous Fe78B13Si9 are shown.
