Magnetic noise measurements using cross-correlated Hall sensor arrays

被引：6

作者：

Jung, G

Ocio, M

Paltiel, Y

Shtrikman, H

Zeldov, E

机构：

[1] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel

[2] Weizmann Inst Sci, Dept Condensed Matter Phys, IL-76100 Rehovot, Israel

[3] Ctr Etud Saclay, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France

[4] Polish Acad Sci, Inst Fiz, PL-02668 Warsaw, Poland

来源：

APPLIED PHYSICS LETTERS | 2001年 / 78卷 / 03期

关键词：

D O I：

10.1063/1.1340866

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. (C) 2001 American Institute of Physics.

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页码：359 / 361

页数：3

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