Equipments
To measure the optical response of various solid samples by robust normal incidence reflectivity technique with in-situ gold coating. The spectrometer is based on the Michelson-type interferometer and covers the range from 20 to 15000 1/cm. The sample compartment was reorganized with concave and flat mirrors to form the beam path to the sample placed in the cryostat for temperature-dependent measurement (temperature range: 5 - 300 K).
Based on Attocube scanning probe microscopy(SPM) platform, the local physical properties of thin film samples or 2D device samples can be detected by changing different tips which lateral limit resolution is about 40 nm, e.g., using magntic tips to detect local magnetism (MFM) and conducting tips to detect electrical property (c-AFM). Moreover, a 3 Gigahertz microwave can be integrated on our SPM for measuring the variation of local permittivity and conductivity(sMIM), e.g., detect the metal-isulator phase transition and the topological edge state in Quantum spin Hall system(topological insulator). Our system can work in different temperature and magntic field.(temperature range: 1.8-300 K and magnetic field range: 0-9 T.)
The two-stage press operating at high pressure and high temperature is utilized to synthesize novel materials. This press can attain a maximum pressure of 20 GPa and furnish temperatures up to 2000 K. The high-pressure and high-temperature synthesis approach offers the benefits of rapid synthesis and elevated sample density. Its distinct advantage lies in the ability to stabilize high-pressure phases that are otherwise unattainable under normal pressure conditions, as well as the synthesis of compounds containing unstable elements.
The system integrates high pressure (HP), low temperature (LT), and strong magnetic field (MF) provides an extremely conditions for resistance, magnetoresistance, Hall coefficient, ac susceptibility and heat capacity measurements under high pressure for the exploration of new superconductors and related mechanisms.
Exploring for new superconductors and related mechanisms, P=100GPa, T=4.2K，Raman shift range:10-10000cm-1.
The system with big sample chamber integrates high pressure (HP) high than 100 GPa and low temperature (LT) down to 0.5K provides an extremely conditions for resistance, ac susceptibility and heat capacity measurements under high pressure for the exploration of new superconductors and related mechanisms.
