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The role of lock-in phase setting in ac susceptibility measurement


Drobac, Đuro; Marohnić, Željko; Živković, Ivica; Prester, Mladen
The role of lock-in phase setting in ac susceptibility measurement // Review of scientific instruments, 84 (2013), 054708-1 doi:10.1063/1.4807752 (međunarodna recenzija, članak, znanstveni)


Naslov
The role of lock-in phase setting in ac susceptibility measurement

Autori
Drobac, Đuro ; Marohnić, Željko ; Živković, Ivica ; Prester, Mladen

Izvornik
Review of scientific instruments (0034-6748) 84 (2013); 054708-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Ac susceptibility; magnetic hysteresis; ferromagnetism

Sažetak
Method in which lock-in detectors process signals from standard ac susceptometers, particularly in the detection of higher harmonics, is analyzed in details. The exact formulas have been derived and checked experimentally by measurements on soft ferromagnetic sample, using several available lockin amplifiers. The reasons why the proper phase adjustment has to be implemented in the protocol of higher harmonics measurements have been elaborated. The procedure of the lock-in phase adjustment is described, enabling separation of Fourier or Taylor components of hysteretic ac susceptibility into real and imaginary sectors.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
035-0352843-2845 - Kvantni magneti: Osnovna stanja u kompeticiji (Mladen Prester, )

Ustanove
Institut za fiziku, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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