More like a traffic rotary for electrons than a sandwich, it could raise commercially useful magnetoresistance
to new heights.
10 MAGNETIC PROPERTIES PRIMER 11 NANOMAGNETIC PARTICLES 11 Single Domain and Superparamagnetic Behavior 11 FIGURE 1 QUALITATIVE DEPENDENCE OF MAGNETIC COERCIVITY (HC) ON ULTRAFINE PARTICLE SIZE 12 NANOMAGNETIC FILMS 12 Giant Magnetoresistance
(GMR) 12 Spin Valve Multilayer Structure 13 Tunneling Magnetoresistance
(TMR) 14 Ballistic Magnetoresistance
(BMR) 14 Colossal Magnetoresistance
(CMR) 15 NANOMAGNETIC BULK MATERIALS 15 Exchange Coupling 15 CURRENT AND POTENTIAL APPLICATIONS SUMMARY 15
and his colleagues are investigating ways to store data using the so-called giant magnetoresistance
effect that appears in tiny metallic structures.
In 2006, Hard-Disk Drives (HDDs) enabled by giant magnetoresistance
(GMR) accounted for $25 billion in 2006 with 450 million units shipped, while 60% of the Li-Ion batteries used are already using nanofibers.
MDT), a leading supplier of magnetic sensors specializing in Tunneling Magnetoresistance
technology (TMR technology), will showcase its lineups of TMR magnetic sensors, including the 1microampere ultra-low power TMR magnetic switches, and the newly developed ultra-low noise TMR linear magnetic field sensors.
scanning microscope incorporating a SQUID, magnetic tunnel junction, giant magnetoresistance
, hall probe, or similar magnetic field sensor) capable of acquiring 2D spatially-resolved maps of the z-component of the DC remanent magnetic field measured at a fixed height above a polished rock thin section.
Known as magnetoresistance
, this effect can be detected in such metals as iron.
MDT is a leading supplier of Tunneling Magnetoresistance
sensors (TMR sensors).
Effects such as giant magnetoresistance
(seen in metallic multilayers and metallic granular systems) are highly desirable in semiconductors host, as such materials would offer great potential for exploring carrier spin scattering because the carrier densities are tunable through a wide range and their spatial confinement is easily controlled.
Until four years ago, few researchers paid much attention to the phenomenon of magnetoresistance
Transmission anisotropy arises from anisotropic magnetoresistance
inherent to ferromagnets.
(MR) Sensor Magnetoresistance
is the property of a material to change the value of its electrical resistance when an external magnetic field is applied to it.