SC
Physicist

Sivaramakrishna Chandrasekhar

Born 16 November 1930 · Tamil Nadu

Died 8 March 2004

Founded the International Liquid Crystal Society and advanced liquid crystal physics.

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Sivaramakrishna Chandrasekhar FNA, FRS was an Indian physicist who won the Royal Medal in 1994. He was the founder-president of the International Liquid Crystal Society.

✨ A detail that surprised us

Chandrasekhar was the first to predict and discover disc-shaped molecules forming discotic liquid crystals, a novel phase distinct from the well-studied rod-like molecular liquid crystals.

1. In 1951, Chandrasekhar topped his MSc physics class at Nagpur University, setting the stage for a career deeply entwined with his uncle C.V. Raman at the Raman Research Institute in Bangalore.

2. 🌍 By 1957, he earned a second doctorate from Cambridge University, focusing on neutron and X-ray scattering corrections—an intricate study of crystals that would inform his later liquid crystal research.

3. In 1961, he returned to India as the founding head of the University of Mysore’s new Physics Department, where he pivoted from traditional crystallography to the then-sleeping field of liquid crystals.

4. 🔬 During the early 1970s at Raman Research Institute, he built a liquid crystal laboratory complete with a synthetic organic chemistry unit, enabling breakthroughs on cholesteric liquid crystals with helical structures around 0.5 microns in pitch.

5. 💡 In the 1970s and 80s, Chandrasekhar predicted and experimentally discovered discotic liquid crystals—molecules shaped like discs rather than rods—ushering in a new class of columnar liquid crystals with two-dimensional periodic order.

6. His leadership extended internationally as he founded and became the first president of the International Liquid Crystal Society in the 1980s, positioning India as a hub in this specialized scientific community.

7. Awarded the Royal Medal in 1994 and the Padma Bhushan in 1998, Chandrasekhar’s career bridged Indian research institutions and global scientific networks.

8. ❓ What motivated Chandrasekhar to focus on liquid crystals, a niche that was dormant for decades, and how did his work transform India’s scientific landscape in this obscure field?

Awards & Honours

  • 🏅Shanti Swarup Bhatnagar Prize for Science and Technology

🔍 One thing most people don't know

Chandrasekhar earned two doctorates: one in India under C.V. Raman by 1954, and another from Cambridge University in 1957, focusing on neutron and X-ray scattering corrections in crystals.

🖼️ Through the Years

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📅 The Journey

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Born in Calcutta

Sivaramakrishna Chandrasekhar was born to Sitalaxmi and Sivaramakrishnan in Calcutta, part of a scientifically distinguished family including C.V. Raman.

Wikipedia

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MSc in Physics with First Rank

Graduated from Nagpur University topping his MSc physics class, setting foundation for doctoral research.

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D.Sc. from Nagpur University

Awarded D.Sc. for research in optical rotatory dispersion at Raman Research Institute under C.V. Raman.

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PhD from Cambridge University

Received second doctorate focusing on extinction corrections in neutron and X-ray scattering from crystals.

Head of Physics at University of Mysore

Returned to India to lead the new Physics Department and started work on liquid crystals.

Established Liquid Crystal Lab at RRI

Created a dedicated lab with organic synthesis facilities at Raman Research Institute to advance liquid crystal research.

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Awarded Royal Medal

Received the prestigious Royal Medal recognizing his research on liquid crystals.

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Passed Away in Bengaluru

Died at age 73, leaving behind a legacy in liquid crystal science and Indian physics institutions.

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1951
1954
1957
1961
1971
1994
2004

🗝️ Discoveries

🔍

He developed a synthetic organic chemistry lab within a physics institute in the 1970s to produce new liquid crystal materials in-house, a rare interdisciplinary move at the time.

Source: Wikipedia

💡

Chandrasekhar’s research revealed that cholesteric liquid crystals have a helical pitch approximately 0.5 microns, a nanoscale structure crucial to their optical properties.

Source: Wikipedia

👤

He was the nephew of Nobel laureate C.V. Raman and part of a family with three brothers all becoming distinguished scientists in related fields of physics and crystallography.

Source: historyofscience.in

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After retiring in 1990, he founded the Centre for Liquid Crystal Research, which quickly became a global center for advanced research on liquid crystals in India.

Source: Kids Kiddle

🎥 Speeches & Recordings

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🌱 What changed because of them

Chandrasekhar established India as a significant contributor to liquid crystal research by founding the Centre for Liquid Crystal Research in Bangalore, which remains a leading institution in the field. His work laid the foundation for India's participation in international scientific collaborations through the International Liquid Crystal Society, influencing both material science and optics research globally.

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