Electrical transport properties of Ti₅₃Zr₂₇Ni₂₀ quasicrystals under high pressure

Effects of pressure on electronic resistance and the critical magnetic field for Ti₅₃Zr₂₇Ni₂₀ quasicrystals were investigated. Superconducting transition temperature, Tc, increased from 1.99 K to 6.47 K with increasing pressure from 0.78 GPa, and 75.63 GPa, respectively. With increasing the magnetic field, the superconductivity was gradually suppressed. The GL fit revealed that the maximum upper critical value was 9.62 T at 75.63 GPa. The synchrotron-based X-ray diffraction measurement results revealed that Ti₅₃Zr₂₇Ni₂₀ quasicrystals maintained the icosahedral structure. Our combined results of structure and transport measurements suggest that increasing the pressure will increase the Tc in Ti₅₃Zr₂₇Ni₂₀ quasicrystals. The results will be compared with the ones for the hydride systems.