magnetic memory


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magnetic memory

[mag′ned·ik ′mem·rē]
(computer science)
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In particular, the so-called electrically controlled magnetism e.g., fine control of magnetic memory by an electric field with ultra-low energy consumption and high efficiency is being highly appealed.
This discovery provides a new and unexpected handle to control magnetism, thus enabling denser magnetic memory, and opens new and unexpected routes for developing novel oxide-based spintronic devices.
Magnetic domains retain their magnetic memory due to communication between groups of neighbouring magnetised atoms.
(http://pubs.acs.org/doi/abs/10.1021/acscentsci.7b00035) Their study , "Magnetic Memory from Site Isolated Dy(III) on Silica Materials," was published in the journal ACS Central Science.
The results provide a possible approach to use the emerging BP nanomaterials for future spintronics applications such as magnetic memory and logic devices.
The magnetic memory effect is the change of ferromagnetic materials' magnetization characteristics under the stress in the weak magnetic field of the earth, and when the stress is removed, the change is irreversible [2].
At Sagem, she served as project engineer and was promoted to manufacturing chief engineer, focusing on magnetic memory technologies.
Among the topics are oxidation induced copper coating on a steel surface, the influence of materials ratio on the hydration process of magnesium oxychloride cement, the effect of solute atoms on the thermal property of magnesium alloys, refining the grain of pure aluminum by inoculation and a rotating magnetic field, manufacturing aluminum foam without a thickening agent with melt foaming method and in compressive behavior, first-principles calculations of hydrogen isotope effects on uranium hydrides, and characterizing crack initiation life in ferromagnetic material by metal magnetic memory testing.
One possible application for a pulsed laser beam may be drilling holes in ferrite sheets, which are used as magnetic memory elements.
As the engineer drew his hysteresis magnetization curves, I looked over his shoulder and reframed, for sport, his terminologies from the upper right quadrant of his graph as follows: his "a," "fully magnetized," I changed to "fully traumatized"; "b," his "residual magnetization" (magnetic memory), I changed to "residual traumatization" (memory of the trauma); and "o," his "initial nonmagnetized state," I changed to the "initial nontraumatized state," to which the person never returns, that is, with no evidence of having been exposed to the traumatizing circumstance.
Metal magnetic memory theory has proved that the maximum variation of scattered magnetic leakage field [H.sub.p] occurs in stress concentration and deformation zone; that is, the tangential component of magnetic leakage [H.sub.p](x) shows the maximum value while normal component of the magnetic leakage [H.sub.p] (y) is shown to be zero (Figure 1).
(a) A metal magnetic memory [4-7], which has been used as a sensitive passive observer of residual and applied stresses and material damages (of ferromagnetic and some austenite parts) [8-15].