Executive Summary : | The first and foremost challenge is to design and synthesize the complexes having optimum transition temperature with wide hysteresis for its application in memory devices, sensors etc This conjuncture has motivated considerable research to incorporate SCO materials into malleable and processable polymer matrices using increasingly sophisticated methods for device fabrication, and the processing of SCO materials in different shapes and sizes (from the nanometric to the macroscopic scale) has also significantly increased. It is known that upon a reduction of size, the spin transition becomes incomplete with residual high and low spin fractions due to an increase in the number of metal ions on the surface of the particle. Also, it is observed that the transition temperature is shifted downwards, and the hysteresis loop is narrowing and almost vanishes for smaller particles due to loss of cooperativity. Therefore, this project would put forward a significant effort to design SCO composite materials with the optimum transition temperature and hysteresis preserved of the complex for its device application. The focus will be on the understanding of the switching phenomenon associated with changing the electronic configuration from high spin to low spin induced by external stimulation like temperature, light, guest molecule, and pressure and their integration into hybrid materials for easy handling into different shapes and sizes for device design. Researchers would also like to study the Study of some unusual magnetic transitions(kinetic trapping of high spin state) like the Light-Induced Excited Spin State Trapping (LIESST) effect, Thermal Induced Excited Spin State Trapping(TIESST), and pressure-induced spin-state switching. |