The zero-temperature quantum phase transition (QPT) is driven by quantum fluctuations, in contrast to the more familiar finite temperature transitions driven by thermal fluctuations. This paper demonstrates our work on two kinds of QPTs in two different materials, respectively. The first work focuses on the pressure-driven antiferromagnetic QPT in pure chromium which is a model system for study...

The quest for new transition metal dichalcogenides (TMDs) with outstanding electronic properties operating under ambient conditions draws us to investigate the 1T-HfSe2 polytype hydrostatic pressure. Diamond anvil cell (DAC) devices coupled in situ synchrotron X-ray, Raman, and optical (VIS–NIR) absorption experiments along density functional theory (DFT)-based calculations prove that (i) bulk ...

in this paper, a new combined power and refrigeration cycle is proposed, which combines the rankin power cycle and the ejector refrigeration cycle. this combined cycle produces both power output and refrigeration output simultaneously. this cycle is driven by the flue gas of gas turbines, industrial waste heats, solar energy and geothermal energy. an exergy analysis is performed to guide the th...