Fast sweep-rate plastic Faraday force magnetometer with simultaneous sample temperature measurement.
Rev Sci Instrum
; 83(12): 125104, 2012 Dec.
Article
em En
| MEDLINE
| ID: mdl-23278023
ABSTRACT
We present a design for a magnetometer capable of operating at temperatures down to 50 mK and magnetic fields up to 15 T with integrated sample temperature measurement. Our design is based on the concept of a Faraday force magnetometer with a load-sensing variable capacitor. A plastic body allows for fast sweep rates and sample temperature measurement, and the possibility of regulating the initial capacitance simplifies the initial bridge balancing. Under moderate gradient fields of ~1 T/m our prototype performed with a resolution better than 1 × 10(-5) emu. The magnetometer can be operated either in a dc mode, or in an oscillatory mode which allows the determination of the magnetic susceptibility. We present measurements on Dy(2)Ti(2)O(7) and Sr(3)Ru(2)O(7) as an example of its performance.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Plásticos
/
Temperatura
/
Magnetometria
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article