The Harbin Institute of Technology team has made major scientific research breakthroughs in the field of diamond single crystals

On January 1, Harbin Institute of Technology, in cooperation with City University of Hong Kong, Massachusetts Institute of Technology and other units, demonstrated the uniform deep elastic strain of a microcrystalline diamond array for the first time through nanomechanics methods

Diamond has high hardness, ultra-wide band gap, excellent carrier mobility and excellent thermal conductivity.

Nano-scale diamond needles have been proved to have extremely large elastic deformation, and the local tensile elastic strain has reached more than 9%, indicating that deep elastic strain engineering (ESE) produces very high (>5%) tensile and shear elasticity in diamond Strain

In this study, a single crystal diamond bridge structure with a length of about 1 micron and a width of about 100 nanometers was finely processed along the [100], [101] and [111] directions at room temperature, and samples were obtained under uniaxial tensile loading.

The team of Academician Han Jicai and Professor Zhu Jiaqi has long been engaged in the research of large-size single crystal diamond, cutting-edge devices and equipment development.