Errors due to field nonuniformity in vibrating sample magnetometry

In a vibrating sample magnetometer the signal contains a spurious component due to the ac magnetization induced in the sample as it vibrates in an imperfectly uniform dc magnetic field. In high‐conductivity and superconducting samples, the spurious signal may be larger than that due to the dc magnet...

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Veröffentlicht in:	Rev. Sci. Instrum.; (United States) 1984-04, Vol.55 (4), p.533-536, Article 533
Hauptverfasser:	Kerchner, H. R., Sekula, S. T., Thompson, J. R.
Format:	Artikel
Sprache:	eng
Schlagworte:	440300 - Miscellaneous Instruments- (-1989) ELECTRIC COILS ELECTRICAL EQUIPMENT ERRORS Exact sciences and technology Instruments, apparatus, components and techniques common to several branches of physics and astronomy Magnetic components, instruments and techniques MAGNETIC FIELDS MAGNETIZATION MAGNETOMETERS MEASURING INSTRUMENTS MECHANICAL VIBRATIONS OTHER INSTRUMENTATION Physics SOLENOIDS VIBRATING SAMPLE MAGNETOMETERS
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Beschreibung
Zusammenfassung:	In a vibrating sample magnetometer the signal contains a spurious component due to the ac magnetization induced in the sample as it vibrates in an imperfectly uniform dc magnetic field. In high‐conductivity and superconducting samples, the spurious signal may be larger than that due to the dc magnetization. A quantitative analysis is given, and measurements made in an uncompensated solenoid are compared with those made in a fourth‐order solenoid.
ISSN:	0034-6748 1089-7623
DOI:	10.1063/1.1137786