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Spin valve, the Glossary

A spin valve is a device, consisting of two or more conducting magnetic materials, whose electrical resistance can change between two values depending on the relative alignment of the magnetization in the layers.^[1]

21 relations: Antiferromagnetism, Coercivity, Density of states, Electric charge, Electrical resistance and conductance, Exchange interaction, Fermi energy, Ferromagnetism, Giant magnetoresistance, Hard disk drive, IBM Research, Magnetic field, Magnetoresistive RAM, Max Planck Institute of Microstructure Physics, RKKY interaction, Sensor, Spin (physics), Spin diffusion, Spin-transfer torque, Stuart Parkin, Tunnel magnetoresistance.
Quantum electronics

Antiferromagnetism

In materials that exhibit antiferromagnetism, the magnetic moments of atoms or molecules, usually related to the spins of electrons, align in a regular pattern with neighboring spins (on different sublattices) pointing in opposite directions.

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Coercivity

Coercivity, also called the magnetic coercivity, coercive field or coercive force, is a measure of the ability of a ferromagnetic material to withstand an external magnetic field without becoming demagnetized.

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Density of states

In condensed matter physics, the density of states (DOS) of a system describes the number of allowed modes or states per unit energy range.

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Electric charge

Electric charge (symbol q, sometimes Q) is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. Spin valve and Electric charge are Spintronics.

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Electrical resistance and conductance

The electrical resistance of an object is a measure of its opposition to the flow of electric current.

See Spin valve and Electrical resistance and conductance

Exchange interaction

In chemistry and physics, the exchange interaction is a quantum mechanical constraint on the states of indistinguishable particles.

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Fermi energy

The Fermi energy is a concept in quantum mechanics usually referring to the energy difference between the highest and lowest occupied single-particle states in a quantum system of non-interacting fermions at absolute zero temperature.

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Ferromagnetism

Ferromagnetism is a property of certain materials (such as iron) that results in a significant, observable magnetic permeability, and in many cases, a significant magnetic coercivity, allowing the material to form a permanent magnet.

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Giant magnetoresistance

Giant magnetoresistance (GMR) is a quantum mechanical magnetoresistance effect observed in multilayers composed of alternating ferromagnetic and non-magnetic conductive layers. Spin valve and Giant magnetoresistance are Spintronics.

See Spin valve and Giant magnetoresistance

Hard disk drive

A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magnetic material.

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IBM Research

IBM Research is the research and development division for IBM, an American multinational information technology company headquartered in Armonk, New York, with operations in over 170 countries.

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Magnetic field

A magnetic field (sometimes called B-field) is a physical field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.

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Magnetoresistive RAM

Magnetoresistive random-access memory (MRAM) is a type of non-volatile random-access memory which stores data in magnetic domains. Spin valve and Magnetoresistive RAM are Spintronics.

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Max Planck Institute of Microstructure Physics

The Max Planck Institute of Microstructure Physics in Halle (Saale) is a research institute in Germany focused novel materials with useful functionalities.

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RKKY interaction

In the physical theory of spin glass magnetization, the Ruderman–Kittel–Kasuya–Yosida (RKKY) interaction models the coupling of nuclear magnetic moments or localized inner d- or f-shell electron spins through conduction electrons.

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Sensor

A sensor is a device that produces an output signal for the purpose of detecting a physical phenomenon.

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Spin (physics)

Spin is an intrinsic form of angular momentum carried by elementary particles, and thus by composite particles such as hadrons, atomic nuclei, and atoms.

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Spin diffusion

Spin diffusion describes a situation wherein the individual nuclear spins undergo continuous exchange of energy.

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Spin-transfer torque

Spin-transfer torque (STT) is an effect in which the orientation of a magnetic layer in a magnetic tunnel junction or spin valve can be modified using a spin-polarized current. Spin valve and spin-transfer torque are Spintronics.

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Stuart Parkin

Stuart Stephen Papworth Parkin (born 9 December 1955) is an experimental physicist, Managing Director at the Max Planck Institute of Microstructure Physics in Halle and an Alexander von Humboldt Professor at the Institute of Physics of the Martin-Luther-University Halle-Wittenberg. Spin valve and Stuart Parkin are Spintronics.

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Tunnel magnetoresistance

Tunnel magnetoresistance (TMR) is a magnetoresistive effect that occurs in a magnetic tunnel junction (MTJ), which is a component consisting of two ferromagnets separated by a thin insulator. Spin valve and tunnel magnetoresistance are Spintronics.

See Spin valve and Tunnel magnetoresistance

References

[1] https://en.wikipedia.org/wiki/Spin_valve

Also known as Spin valves, Spin-valve.