Substrates and Wafers for High Transition Temperature Superconductor Film Growth

A large number of materials have been discovered with superconducting transition temperatures (Tc) above 77 K. These materials have a modified perovskite crystal structure with Cu-O planes that are generally believed to be central to the phenomenon of high-temperature superconduction.

Hangzhou Shalom EO provide substrates optimized for expitaxial growth of high trasnsition temperature superconductor thin films, where our diverse range of substrate materials supports the growth of various high temperature superconducting thin films like iron-based superconductors, YBCO films for the applications such as microelectronics, quantum computing, high-current cables, etc.

High-temperature superconducting (HTS) thin films require substrates that balance lattice compatibilities, thermal stabilities, and chemical inertness to optimize superconducting properties. Below are the most promising substrates identified through recent research and industrial applications. Various substrate materials made of MgO, SrTiO3(STO), LSAT, MgAl2O4 (Spinel), LaAlO3, LaSrAlO4, YAlO3(YAP), KTaO3, and YSZ for high transition temperature superconductor (HTSC) are offered, where all substrates are EPI ready, a wide range of standard and custom specifications including sizes, thicknesses, polishing can be selected and tailored to meet customer's requirements.

The STO is popular due to excellent lattice matching with cuprates, while the LaAlO3 thin films are excellent for industrial-scale production of large-size superconducting thin films like YBCO films, LSAT has the potential to substitute LaAlO3 and SrTiO3 for giant magnets and superconducting devices, MgO substrates have Thermal expansion compatibilities with FeSe superconducting thin films, and YSZ substrates exhibit great mechanical and chemical stabilities.