What are the spintronic devices?

What are the spintronic devices?

Spintronic devices comprise magnetic layers that serve as spin polarizers or analyzers separated by non-magnetic layers through which the spin-polarized electrons are transmitted. It provides a new way to manipulate the magnetization of magnetic nanostructures by a spin-polarized current.

On what principle does spintronic memory devices work?

Spintronics is one of the emerging fields for the next-generation nanoelectronic devices to reduce their power consumption and to increase their memory and processing capabilities. Such devices utilise the spin degree of freedom of electrons and/or holes, which can also interact with their orbital moments.

What is the difference between electronics and spintronics?

is that electronics is (physics) the study and use of electrical devices that operate by controlling the flow of electrons or other electrically charged particles while spintronics is (physics) the storage and transfer of information using the spin state of electrons as well as their charge.

Is spintronics a quantum computer?

Spintronics is a form of electronics based on spin rather than charge. By carefully controlling and manipulating an electron’s spin within a molecule, it turns out we can actually do quantum computations.

Who invented spintronics?

The history of spintronics Spintronics dates to the 1960s and was discovered by a group at IBM headed by Leo Esaki, a Japanese physicist who would later go on to win a share of the Nobel Prize I 1973 for discovering the phenomenon of electronic tunneling.

Why do we need spintronics?

Spintronics has several advantages over conventional electronics. Less energy is needed to change spin than to generate a current to maintain electron charges in a device, so spintronics devices use less power. Spin states can be set quickly, which makes transferring data quicker.

What is spin scattering?

The spin-flip scattering is strong at low temperatures and actually increases slightly as temperature decreases. This phenomenon is called the Kondo effect after the Japanese theoretical physicist Jun Kondo, who first explained the increase in resistivity resulting from magnetic impurities.

What are the Future Perspectives on spintronic devices?

Future perspectives on the spintronic devices are provided at the end of this review. Spintronics is one of the emerging fields for the next-generation nanoelectronic devices to reduce their power consumption and to increase their memory and processing capabilities.

What is spin-based memory technology?

Making use of the spin nature of electrons provide new and effective ways to control the motion of electrons, which help in writing and reading information. More importantly, these mechanisms can be integrated on top of the conventional Si-based memory technologies. As a result, these memory devices have a huge potential.

Why are magnetic materials used in spintronics devices?

The use of magnetic materials in spintronics devices helps to store information, to provide non-volatility and to provide an endurance that is unmatched by other memory technologies such as resistive or phase-change memory.

What are the applications of semiconductors in spintronics?

The use of semiconductors for spintronics can be traced back at least as far as the theoretical proposal of a spin field-effect-transistor by Datta and Das in 1990. Recently integrated magnetic/spintronic device micro arrays have demonstrated great potentials in both biomedical research and practices.