Review of noise sources in magnetic tunnel junction sensors

Z. Q. Lei; G. J. Li; William F. Egelhoff; P. T. Lai; Philip W.T. Pong

doi:10.1109/TMAG.2010.2100814

Review of noise sources in magnetic tunnel junction sensors

Z. Q. Lei, G. J. Li, William F. Egelhoff, P. T. Lai, Philip W.T. Pong

Research output: Contribution to journal › Article › peer-review

90 Scopus citations

Abstract

Noise problem limits the sensitivity of magnetic tunnel junction (MTJ) sensors for ultra-low magnetic field applications. Noise analysis not only helps in finding ways to eliminate noise disturbances but also essential for understanding the electronic and magnetic properties of MTJs. These approaches provide insight for optimizing the design of MTJ sensors before fabrication. This paper reviews the noise sources in MTJ sensors reported in recent years. Both the origins and mathematical derivations of the noise sources are presented, illustrating how different factors affecting the performance of MTJ sensors. A brief outlook of challenges in the future is also given.

Original language	English (US)
Article number	5721852
Pages (from-to)	602-612
Number of pages	11
Journal	IEEE Transactions on Magnetics
Volume	47
Issue number	3
DOIs	https://doi.org/10.1109/TMAG.2010.2100814
State	Published - Mar 2011
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Keywords

1/f noise
Johnson noise
magnetic noise
magnetic tunnel junction (MTJ)
shot noise
thermal noise

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10.1109/TMAG.2010.2100814

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title = "Review of noise sources in magnetic tunnel junction sensors",

abstract = "Noise problem limits the sensitivity of magnetic tunnel junction (MTJ) sensors for ultra-low magnetic field applications. Noise analysis not only helps in finding ways to eliminate noise disturbances but also essential for understanding the electronic and magnetic properties of MTJs. These approaches provide insight for optimizing the design of MTJ sensors before fabrication. This paper reviews the noise sources in MTJ sensors reported in recent years. Both the origins and mathematical derivations of the noise sources are presented, illustrating how different factors affecting the performance of MTJ sensors. A brief outlook of challenges in the future is also given.",

keywords = "1/f noise, Johnson noise, magnetic noise, magnetic tunnel junction (MTJ), shot noise, thermal noise",

author = "Lei, {Z. Q.} and Li, {G. J.} and Egelhoff, {William F.} and Lai, {P. T.} and Pong, {Philip W.T.}",

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AU - Egelhoff, William F.

AU - Lai, P. T.

AU - Pong, Philip W.T.

PY - 2011/3

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AB - Noise problem limits the sensitivity of magnetic tunnel junction (MTJ) sensors for ultra-low magnetic field applications. Noise analysis not only helps in finding ways to eliminate noise disturbances but also essential for understanding the electronic and magnetic properties of MTJs. These approaches provide insight for optimizing the design of MTJ sensors before fabrication. This paper reviews the noise sources in MTJ sensors reported in recent years. Both the origins and mathematical derivations of the noise sources are presented, illustrating how different factors affecting the performance of MTJ sensors. A brief outlook of challenges in the future is also given.

KW - 1/f noise

KW - Johnson noise

KW - magnetic noise

KW - magnetic tunnel junction (MTJ)

KW - shot noise

KW - thermal noise

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Review of noise sources in magnetic tunnel junction sensors

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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