Search results
Results from the WOW.Com Content Network
Photon spin is associated with the polarization of light (photon polarization). An emerging application of spin is as a binary information carrier in spin transistors. The original concept, proposed in 1990, is known as Datta–Das spin transistor. [31] Electronics based on spin transistors are referred to as spintronics.
Spintronics emerged from discoveries in the 1980s concerning spin-dependent electron transport phenomena in solid-state devices. This includes the observation of spin-polarized electron injection from a ferromagnetic metal to a normal metal by Johnson and Silsbee (1985) [5] and the discovery of giant magnetoresistance independently by Albert Fert et al. [6] and Peter Grünberg et al. (1988). [7]
Spin physics spans studies of nuclear, electron and proton magnetic resonance, magnetism, and certain areas of optics. Spintronics is a branch of spin physics. Perhaps the two best known applications of spin physics are Magnetic Resonance Imaging (or MRI ) and the spintronic giant-magnetoresistive ( GMR ) hard disk read head.
Spin engineering in its generic sense became possible only after the first experimental characterization of spin in the Stern–Gerlach experiment in 1922 followed by the development of relativistic quantum mechanics by Paul Dirac. This theory was the first to accommodate the spin of the electron and its magnetic moment.
The field of spintronics, which is the scientific field that aims to study the spin-dependent electron transport in solid-state devices, emerged in the last decades of the 20th century, first with the observation of the injection of a spin-polarized current from a ferromagnetic to a paramagnetic metal [4] and subsequently with the discovery of tunnel magnetoresistance [5] and giant ...
2D nature and high spin–orbit coupling in TMD layers can be used as promising materials for spintronic applications. [12] [13] The work on TMD monolayers is an emerging research and development field since the discovery of the direct bandgap [2] and the potential applications in electronics [14] [3] and valley physics.
Besides its relevance in condensed matter physics, spin glass theory has acquired a strongly interdisciplinary character, with applications to neural network theory, computer science, theoretical biology, econophysics etc. Spin glass models were adapted to the folding funnel model of protein folding.
Spin squeezing is a quantum process that decreases the variance of one of the angular momentum components in an ensemble of particles with a spin. The quantum states obtained are called spin squeezed states . [ 1 ]