Development of the Electrically configured Nano-Channels

Context:

Scientists have developed electrically configured nano-channels that can eliminate unwanted energy waste and promise wave-based computing. It was developed by S. N. Bose National Centre for Basic Sciences, an autonomous institute under the Department of Science and Technology (DST), Government of India.

What are Electrically configured Nano-channels?

• These channels are electrically reconfigured parallel nano-channels.
• Principal: They tune the behavior of spin waves in nano-structure elements.
  • It is done through anisotropy using the electric field. These are technically called the principles of voltage-controlled magnetic anisotropy.
  • The spin-waves were efficiently transferred through these nanochannels, and this could be switched ‘ON’ and ‘OFF’ and its magnitude altered by a meager voltage of a few volts.

What is Spintronics?

• It is also known as spin electronics, or the study of the intrinsic spin of the electron and its associated magnetic moment.
• In solid-state devices offer to harness electron spins.
• Their collective precession can carry information encoded in its amplitude, phase, wavelength, and frequency without any physical motion of particles, eliminating unwanted energy waste and promising wave-based computing.

Spin Wave

• A spin wave is a collective motion of a magnetic moment in magnetically ordered materials.
• It is a propagating disturbance in the ordering of a magnetic material.
• These low-lying collective excitations occur in magnetic lattices with continuous symmetry.
• The spin-wave plays an important role in spintronics as a carrier of spin current, that is, a flow of spin angular momentum.