UPSC Notes

Spintronics

PYQs

8

Articles

1

Momentum

21

Phase IFoundation

Background

Overview

As a cutting-edge field, spintronics represents a significant leap in computing and data storage, aligning with UPSC's focus on emerging technologies that can transform digital infrastructure, national security, and economic competitiveness.

Spintronics, or spin electronics, is an emerging technology that exploits the intrinsic angular momentum (spin) of electrons, in addition to their fundamental electronic charge, to store, process, and transmit information, offering potential advantages over conventional electronics.

Phase IIStatic core

Facts & tables

Key facts

Principle

Utilizes the magnetic spin of electrons, not just their charge, for data storage and movement.

Goal

Aims to create faster, more energy-efficient, and non-volatile electronic devices.

Frequency Requirement

Requires high-frequency (terahertz) vibrations for advanced applications.

Future Potential

Considered a potential successor or complement to traditional charge-based electronics.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaQuantum Computing
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Multi-statement analysis

Prelims angle: Conceptual understanding

Quick revision

  • Uses electron's magnetic spin for data.
  • Aims for faster, energy-efficient devices.
  • Potential successor to charge-based electronics.
  • Requires THz frequencies for advanced use.
  • Key for next-gen computing.

High-confidence PYQs

Topic timeline

Quantum Computing

Laser strums atoms trillions of times in search for better computers

22 Jun 2026 · An advanced technology that leverages the electron's magnetic spin for information processing, promising faster, more energy-efficient, and non-volatile computing solutions beyond conventional charge-based electronics.

Read article

Related topics

Practice writing on this topic

UPSC has asked 8 linked questions on Spintronics in Mains. Write an answer to one — and get it evaluated.

UPSC Prelims PYQs on Spintronics

Practice official previous year questions asked by UPSC related to this concept.

With reference to “Software as a Service (SaaS)”, consider the following statements: 1. SaaS buyers can customize the user interface and can change data fie...

2022·Science & Technology
Solve

With reference to Web 3-0, consider the following statements : 1. Web 3-0 technology enables people to control their own data. 2. In Web 3-0 world, there ca...

2022·Science & Technology
Solve

GPS-Aided Geo Augmented Navigation (GAGAN) uses a system of ground stations to provide necessary augmentation. Which of the following statements is/are corre...

2025·Science & Technology
Solve

Consider the following statements with reference to the Sagarmala Programme of the Government of India : I. The Sagarmala Programme seeks to achieve port-le...

2026·Economy
Solve

Which of the following statements with regard to the National Quantum Mission (NQM) is/are correct? 1. It aims at developing intermediate-scale quantum comp...

2026·Science & Technology
Solve

Which of the following statements with regard to drone swarms is/are correct ? 1. They use Terahertz band of frequency to communicate with the command centr...

2026·Science & Technology
Solve

In India, it is legally mandatory for which of the following to report on cybersecurity incidents? 1. Service providers 2. Data centres 3. Body corporate...

2017·Science & Technology
Solve

Consider the following statements about Mission Sudarshan Chakra of India: 1. It aims to enhance India's air defence, ballistic missile defence and aerial o...

2026·Science & Technology
Solve

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