A COMPACT VIBRATING-SAMPLE MAGNETOMETER WITH VARIABLE PERMANENT-MAGNET FLUX SOURCE

Authors
CUGAT O BYRNE R MCCAULAY J COEY JMD
Citation
O. Cugat et al., A COMPACT VIBRATING-SAMPLE MAGNETOMETER WITH VARIABLE PERMANENT-MAGNET FLUX SOURCE, Review of scientific instruments, 65(11), 1994, pp. 3570-3573
Citations number
8
Categorie Soggetti
Physics, Applied","Instument & Instrumentation
Journal title
Review of scientific instruments → ACNP
ISSN journal
00346748
Volume
65
Issue
11
Year of publication
1994
Pages
3570 - 3573
Database
ISI
SICI code
0034-6748(1994)65:11<3570:ACVMWV>2.0.ZU;2-V
Abstract
An automated vibrating-sample magnetometer is described where the vari able magnetic field in excess of +/- 1.1 T is produced in a 26 mm bore by an assembly of nested, rotating permanent magnet cylinders. The ho mogeneity is better than 0.3% +/- 4 mT in 1 cc. The instrument has dim ensions 200x420x700 mm, and its mass is 20 kg. Sensivity is better tha n 0.4 muJ/T (4x10(-4) emu), which permits study of the susceptibility, magnetization, and hysteresis of a wide range of magnetic materials, including ferromagnetic thin films.