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VOL. I · EST. 11.2025 
SatyaDheesh
सत्याधीश
India's Ground Truth Record
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A research paper in the journal Science describes a light-driven switching device using antiferromagnetic material that could increase computer speeds by 1,000 times while reducing data center power consumption

GS3Economy · S&T · Environment · Security· IT, AI, semiconductors & computing· Prelims·

Why in news

A research paper in the journal *Science* describes a light-driven switching device using antiferromagnetic material that could increase computer speeds by 1,000 times while reducing data center power consumption.

Background

The device switches states in 40 picoseconds, which is significantly faster than conventional semiconductor logic. It operates by using light-driven switching to eliminate the need for continuous electrical current, thereby reducing heat generation.

Facts for Prelims

  • S&TThe new switching device is based on antiferromagnetic material.
  • FactThe device switches states in 40 picoseconds.
  • S&TThe technology aims to reduce data center power consumption by eliminating continuous electrical current.
  • S&TThe proposed hybrid system combines optical triggering with magnetic non-volatile storage.

For Mains

Q. Discuss how advancements in light-driven switching and antiferromagnetic materials can address the twin challenges of computational speed and energy efficiency in global data infrastructure.

Dimensions to cover in your answer

  • Hardware bottleneck: Manufacturing complexity and material availability constraints for industrial-scale production
  • Energy-efficiency trade-off: Reducing idle power consumption through non-volatile magnetic storage integration
  • Infrastructure sustainability: Mitigating heat generation in high-density data centers to reduce carbon footprint

Keywords: Antiferromagnetic material · Optical triggering · Non-volatile storage · Energy efficiency · Semiconductor logic

Read the full news →Report a mistake in this noteSource: Times of India ↗Also: GS3 · Infrastructure (energy, ports, roads, railways)

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