Move Over Semiconductors, Orbitronics Will Soon Replace You

A new generation of electric storage could see the end of traditional semiconductor memory storage and the beginning of a new era of digital storage from “spintronics.” Assistant Professor Hiroki Hayashi from Keio University and colleagues published the results of an experiment that shows you can create orbitronic-based memory storage, which would multiply the amount of storage in physical space by 10 times or more.

Transforming the horizon of next generation electronics – finance.yahoo.com

Excerpt:

TOKYO, Dec. 14, 2023 /PRNewswire/ — Traditional electronics relies on manipulating electrons through their charge, but a groundbreaking initiative led by scientists at Keio University is propelling us towards a new era in electronics. The research, featured in the journal Communications Physics, unveils the realm of ‘orbitronics,’ where the orbital angular momentum of electrons takes center stage.

In conventional electronics, the manipulation of electrons within solids is the norm. This involves utilizing the charge of electrons to regulate their movement through integrated circuits, transistors, and diodes. However, Keio University researchers are charting a transformative course by delving into the unexplored potential of the electron’s orbital angular momentum.

Specifically, beyond the realm of charge manipulation, electrons possess an inherent property known as ‘spin.’ This spin, akin to angular momentum, represents an electron’s inclination to rotate around its own axis. The emerging field of ‘spintronics’ has evolved with the premise that electron spin can be harnessed to control spin currents, opening avenues for innovative applications such as mass storage devices. Notably, another level of electron manipulation is related to electron orbital angular momentum. This refers to a magnetic moment that arises when an electron describes an orbiting path such as that around an atomic nucleus. ‘Orbitronics’ —the associated type of electronics—is still a nascent area of research with the potential for creating new devices to replace conventional semiconductor memory technology.

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