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/sci/ - Science & Math

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3134894 No.3134894 [Reply] [Original]

Let's talk about spintronics

>> No.3134899

what is a spintronic

>> No.3134904
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3134904

The spin follows the right hand rule.
I heard that the components that go into making these include such things as diamond and nitrogen.

>> No.3134908

http://nextbigfuture.com/2011/03/silicon-spin-transistors-progressing-to.html

>> No.3135616

can somebody tell me how a spin transistor is made?

>> No.3135632
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3135632

>>3134904 The spin follows the right hand rule.

>> No.3135663
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3135663

>>3135632
What's wrong? Electrons have an internal spin degree of freedom resulting from their rotation. And everyone knows that a rotating charge has a corresponding magnetisation.

>> No.3135669

>>3135663
>Electrons
>rotation
They have "spin", but there is no actual rotation going on.

>> No.3135674

>>3134904
tell me how that is not an up spin when I stick my right hands thumb up.

>> No.3135681

>>3135632
what follows the right hand rule?

>> No.3135703

Spin transistors are a new concept device that unites an ordinary transistor with the useful functions of a spin (magnetoresistive) device. They are expected to be a building block for novel integrated circuits employing spin degrees of freedom. The interesting features of spin transistors are nonvolatile information storage and reconfigurable output characteristics: these are very useful and suitable functionalities for various new integrated circuit architectures that are inaccessible to ordinary transistor circuits. This article reviews the current status and outlook of spin transistors from the viewpoint of integrated circuit applications. The device structure, operating principle, performance, and features of various spin transistors are discussed. The fundamental and key phenomena/technologies for spin injection, transport, and manipulation in semiconductors and the integrated circuit applications of spin transistors to nonvolatile logic and reconfigurable logic are also described.

>> No.3135712

>>3135663
The symmetry that leads to spin (<span class="math">SU(2)[/spoiler]) is an open cover of the group of rotations in 3D (<span class="math">O(3)[/spoiler]). Some time ago somebody must have made a joke about that and some experimentalist thought he understood spin. Apart from that, spin isn't present in the 3-dimensional space but forms its own 2-dimensional one.

tl;dt: electrons don't spin

>> No.3135718

Woops, O(3) is the cover of course, mixed that up

>> No.3135759

then why do they call it spintronics.
The total magnetic moment of an electron is equal to the sum of its spin moment (on account of its spin about its own axis) and the orbital (on account of its orbit around nucleus of an atom).

>> No.3135777

Where can one go to work with spin transistor?