Magnetics Business & Technology - November/December 2021 - 11
FEATURE ARTICLE
At the heart of its XtremeSense TMR technology, explains Crocus,
is a thin-film magnetoresistive device, the magnetic tunnel junction.
Basically, it consists of two electrically-conducting magnetic
layers on either side of a nanometer-thin but highly robust insulating
layer. One magnetic layer has a fixed magnetic moment direction
while the other can change freely to follow the direction of the
local magnetic field.
Despite how thin the insulating layer is, it should prevent any current
flow between the two magnetic layers, according to classical
physics. However, in this nano-world, quantum physics allows
electrons to " tunnel " across the atoms of the thin insulating material,
with a resistance that depends sensitively on the relative
orientation of the two magnetic layers.
Therefore, as the free-layer magnetization follows the direction
and intensity of the ambient magnetic field, its magnetic orientation
is modified with respect to the reference layer. This change in
relative magnetic orientation will significantly change the probability
of quantum tunneling between the two layers and therefore the
electron flow through the device.
Headquartered in Santa Clara, California, Crocus develops and
manufactures magnetic sensors based on its XtremeSense TMR
sensor technology for IoT and smart devices in industrial, consumer,
medical, and automotive electronics applications.
ics phenomena, work in a completely different manner which
explains their superior characteristics as magnetic sensors, says
Crocus. The magnetoresistance effect is the property of a device
to change its electrical resistance value under the influence of an
external magnetic field, therefore allowing the electrical detection
of all kinds of magnetic fields in various applications.
To Space
The Standard in Magnetic Measurements
Hemholtz Coil Systems
* Turnkey * 1, 2, 3, and 4 meter
* 3-axis * Applications include:
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Magnetometers - Magnetic Sensors -
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+ Satellite magnetic cleanliness testing
+ Animal behavior research
MEDA.COM
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Satellite Magnetometers
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For more info, see www.crocus-technology.com.
SALES@MEDA.COM
703.996.8990
FAX: 703.996.8770
November/December 2021 * Magnetics Business & Technology 11
https://www.crocus-technology.com
https://www.MEDA.COM
https://www.MagneticsMag.com
Magnetics Business & Technology - November/December 2021
Table of Contents for the Digital Edition of Magnetics Business & Technology - November/December 2021
Magnetics Business & Technology - November/December 2021
Automation Specialist Balluff Puts Magnetic (and NonMagnetic) Sensing to Industrial Work
VoltAero and Safran Pioneer Propulsion Breakthroughs in Electric Aviation
BAE Racking Up Contracts for Electric Power & Propulsion Systems
Antarctica’s Magnetic Link to Ancient Neighbors
Magnetics Business & Technology - November/December 2021 - Magnetics Business & Technology - November/December 2021
Magnetics Business & Technology - November/December 2021 - Cover2
Magnetics Business & Technology - November/December 2021 - 3
Magnetics Business & Technology - November/December 2021 - 4
Magnetics Business & Technology - November/December 2021 - 5
Magnetics Business & Technology - November/December 2021 - Automation Specialist Balluff Puts Magnetic (and NonMagnetic) Sensing to Industrial Work
Magnetics Business & Technology - November/December 2021 - 7
Magnetics Business & Technology - November/December 2021 - 8
Magnetics Business & Technology - November/December 2021 - 9
Magnetics Business & Technology - November/December 2021 - 10
Magnetics Business & Technology - November/December 2021 - 11
Magnetics Business & Technology - November/December 2021 - VoltAero and Safran Pioneer Propulsion Breakthroughs in Electric Aviation
Magnetics Business & Technology - November/December 2021 - 13
Magnetics Business & Technology - November/December 2021 - 14
Magnetics Business & Technology - November/December 2021 - 15
Magnetics Business & Technology - November/December 2021 - BAE Racking Up Contracts for Electric Power & Propulsion Systems
Magnetics Business & Technology - November/December 2021 - 17
Magnetics Business & Technology - November/December 2021 - 18
Magnetics Business & Technology - November/December 2021 - 19
Magnetics Business & Technology - November/December 2021 - 20
Magnetics Business & Technology - November/December 2021 - 21
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Magnetics Business & Technology - November/December 2021 - Antarctica’s Magnetic Link to Ancient Neighbors
Magnetics Business & Technology - November/December 2021 - Cover3
Magnetics Business & Technology - November/December 2021 - Cover4
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