Breakthrough Enables Engineering of Materials for Quantum Tech
Technology

Breakthrough Enables Engineering of Materials for Quantum Tech

Researchers at the Indian Institute of Science (IISc), Bangalore, have developed a method to control phonon properties by adjusting twist angles between layers of two-dimensional (2D) materials. This breakthrough could pave the way for engineering materials vital for photonic, quantum and electronic applications.

Phonons are energy waves travelling through a crystal lattice when atoms vibrate, much like ripples forming in a pond. Their properties are crucial for developing optoelectronics and tunable photonic devices. Controlling these properties has been a major research focus.

The study, published in ACS Nano, demonstrates that varying twist angles between one degree and seven degrees in tungsten diselenide (WSe2) homobilayers can induce splitting in phonon modes. Raman spectroscopy revealed temperature-driven changes in phonon behaviour, particularly at temperatures below fifty Kelvin, highlighting complex electron-phonon interactions and phonon anharmonicity.

The findings show how moiré superstructures, formed when overlapping 2D lattices align at slight angles, influence both phononic and electronic properties. This work used the Raman spectroscopy facility established with support from the Fund for Improvement of Science and Technology Infrastructure (FIST) programme of the Department of Science and Technology (DST).

The research opens new possibilities for designing materials suited to emerging quantum technologies.

Source: Press Information Bureau Delhi 

Researchers at the Indian Institute of Science (IISc), Bangalore, have developed a method to control phonon properties by adjusting twist angles between layers of two-dimensional (2D) materials. This breakthrough could pave the way for engineering materials vital for photonic, quantum and electronic applications.Phonons are energy waves travelling through a crystal lattice when atoms vibrate, much like ripples forming in a pond. Their properties are crucial for developing optoelectronics and tunable photonic devices. Controlling these properties has been a major research focus.The study, published in ACS Nano, demonstrates that varying twist angles between one degree and seven degrees in tungsten diselenide (WSe2) homobilayers can induce splitting in phonon modes. Raman spectroscopy revealed temperature-driven changes in phonon behaviour, particularly at temperatures below fifty Kelvin, highlighting complex electron-phonon interactions and phonon anharmonicity.The findings show how moiré superstructures, formed when overlapping 2D lattices align at slight angles, influence both phononic and electronic properties. This work used the Raman spectroscopy facility established with support from the Fund for Improvement of Science and Technology Infrastructure (FIST) programme of the Department of Science and Technology (DST).The research opens new possibilities for designing materials suited to emerging quantum technologies.Source: Press Information Bureau Delhi 

Next Story
Infrastructure Urban

ICMM CEO Rohitesh Dhawan Visits Hindustan Zinc

Hindustan Zinc, India’s only and the world’s largest integrated zinc producer, hosted Rohitesh Dhawan, President & CEO of the International Council on Mining and Metals (ICMM), at its flagship Sindesar Khurd Mine (SKM) in Rajasthan. The visit follows Hindustan Zinc’s induction as the first Indian company into ICMM, marking a significant milestone for India’s mining sector on the global sustainability stage.Dhawan, accompanied by run Misra, CEO of Hindustan Zinc, and the senior leadership team, toured Sindesar Khurd Mine – the world’s fourth-largest silver-producing mine – to ..

Next Story
Infrastructure Urban

Amit Gupta Appointed CFO of Vedanta Jharsuguda Unit

Vedanta Aluminium has announced the appointment of Amit Gupta as Deputy Chief Financial Officer of its aluminium business and Chief Financial Officer of its Jharsuguda unit in Odisha.Gupta has been associated with the Vedanta Group since 2018, beginning as Group Head – FP&A at Vedanta Resources. With over two decades of cross-sector experience, he brings strong expertise in financial strategy, project finance, and business transformation.Prior to this role, he served as CFO of Bharat Aluminium Company (BALCO), where he led finance operations for more than four years. He has also held sen..

Next Story
Infrastructure Energy

Adani Power To Build 2,400 MW Plant in Bihar

Adani Power on Saturday (September 13, 2025) announced plans to set up a 2,400 MW ultra super-critical power plant in Bihar at an investment of $3 billion (around Rs 26.48 billion).The company has signed a 25-year Power Supply Agreement (PSA) with Bihar State Power Generation Company Ltd (BSPGCL) to supply electricity from the project, which will be located at Pirpainti in Bhagalpur district.The PSA follows a Letter of Award issued by BSPGCL to Adani Power on behalf of North Bihar Power Distribution Company Ltd (NBPDCL) and South Bihar Power Distribution Company Ltd (SBPDCL) in August. Adani P..

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

Talk to us?