Why in the news?
Researchers from the Institute of Nano Science and Technology (INST) have discovered a new mechanism to generate and control spin currents using sound waves, opening avenues for low-power computing, spintronics, and quantum technologies.
Key Highlights
- Researchers developed a method to generate magnon-based spin currents using Surface Acoustic Waves (SAWs).
- The study was published in Physical Review B.
- It offers a pathway towards:
- Energy-efficient electronics,
- Quantum computing,
- Next-generation communication technologies.
Why is this Important?
Limitations of Conventional Electronics: Traditional electronics use: Movement of electric charge (electrons)
Problems:
- Heat generation
- Energy loss
- Reduced efficiency at smaller scales
What is Spintronics?
Spintronics (Spin Electronics) is a technology that uses the:
- Spin of electrons
- Along with their charge
to process and store information.
Advantages
- Lower power consumption.
- Faster processing speeds.
- Reduced heat generation.
- Higher data storage density.
What are Magnons?
Magnons are Quanta of spin waves or collective disturbances in the magnetic ordering of a material.
Simple Understanding
- Similar to how photons are particles of light,
- Magnons are particles associated with magnetic waves.
What are Surface Acoustic Waves (SAWs)?
Surface Acoustic Waves are Sound waves that travel along the surface of a material.
Characteristics
- Cause tiny mechanical vibrations.
- Commonly used in:
- Mobile communication filters,
- Sensors,
- Signal processing devices.
[2022] Which one of the following is the context in which the term “qubit” is mentioned?
[A] Cloud Services
[B] Quantum Computing
[C] Visible Light Communication Technologies
[D] Wireless Communication Technologies