Combined alternating gradient force magnetometer and susceptometer system

Journal Article · Thu Jan 15 04:00:00 UTC 2015 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4905686· OSTI ID:22392334

Pérez, M.; Mendizábal Vázquez, I. de; Aroca, C. ^[1]; Ranchal, R. ^[2]; Cobos, P. ^[3]

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1. Dpto. Física Aplicada, E.T.S.I. Telecomunicación, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, Madrid 28040 (Spain)
2. Dpto. Física de Materiales, Facultad Ciencias Físicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid 28040 (Spain)
3. ISOM, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, Madrid 28040 (Spain)

We report the design, fabrication, and characterization of a new system that combines the performances of two different types of magnetic characterization systems, Alternating Gradient Force Magnetometers (AGFM) and susceptometers. The flexibility of our system is demonstrated by its capability to be used as any of them, AGFM or susceptometer, without any modification in the experimental set-up because of the electronics we have developed. Our system has a limit of sensitivity lower than 5 × 10{sup −7} emu. Moreover, its main advantage is demonstrated by the possibility of measuring small quantities of materials under DC or AC magnetic fields that cannot properly be measured with a commercial vibrating sample magnetometers or AGFM.

• OSTI ID: 22392334
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 1 Vol. 86; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
DESIGN
FABRICATION
MAGNETIC FIELDS
MATERIALS
MODIFICATIONS
PERFORMANCE
SENSITIVITY
VIBRATING SAMPLE MAGNETOMETERS