Magnetic noise measurements using cross-correlated Hall sensor arrays

G. Jung, M. Ocio, Y. Paltiel, H. Shtrikman, E. Zeldov

Research output: Contribution to journalReview articlepeer-review

7 Scopus citations

Abstract

An experimental technique for measuring magnetic fluctuations by means of a double-layer Hall sensor array is described. The technique relies on cross-correlating Hall signals from two independent sensors positioned one above the other in two separate two-dimensional-electron-gas layers of a GaAs/AlGaAs heterostructure. The effectiveness of the technique is demonstrated by a reduction of the magnitude of the background noise floor of the correlated sensors with respect to the noise level of the best single sensor.

Original languageEnglish
Pages (from-to)359-361
Number of pages3
JournalApplied Physics Letters
Volume78
Issue number3
DOIs
StatePublished - 15 Jan 2001

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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