Copper-based metal halides have become important materials in the feld of X-ray and photodetection due to their excellent optical properties,good environmental stability and low toxicity.This review presents the progr...Copper-based metal halides have become important materials in the feld of X-ray and photodetection due to their excellent optical properties,good environmental stability and low toxicity.This review presents the progress of research on crystal structure/morphology,photophysics/optical properties and applications of copper-based metal halides.We also discuss the challenges of copper-based metal halides with a perspective of their future research directions.展开更多
Motivated by recent experimental progress on triangular lattice heavy-fermion compounds,we investigate possible Lifshitz transitions and the scanning tunnel microscope(STM)spectra of the Kondo-Heisenberg model on the ...Motivated by recent experimental progress on triangular lattice heavy-fermion compounds,we investigate possible Lifshitz transitions and the scanning tunnel microscope(STM)spectra of the Kondo-Heisenberg model on the triangular lattice.In the heavy Fermi liquid state,the introduced Heisenberg antiferromagnetic interaction(JH)results in the twice Lifshitz transition at the case of the nearest-neighbour electron hopping but with next-nearest-neighbour hole hopping and the case of the nearest-neighbour hole hopping but with next-nearest-neighbour electron hopping,respectively.Driven by JH,the Lifshitz transitions on triangular lattice are all continuous in contrast to the case on square lattice.Furthermore,the STM spectra shows rich line-shape which is influenced by the Kondo coupling JK,the Heisenberg antiferromagnetic interaction JH,and the ratio of the tunneling amplitude of f-electron tf versus conduction electron tc.Our work provides a possible scenario to understand the Fermi surface topology and the quantum critical point in heavy-fermion compounds.展开更多
基金funded by the National Natural Science Foundation of China(Grant Nos.22279049 and 52073131)the Fundamental Research Funds for the Central Universities(Nos.lzujbky-2021-ct15 and lzujbky-2021-sp69).
文摘Copper-based metal halides have become important materials in the feld of X-ray and photodetection due to their excellent optical properties,good environmental stability and low toxicity.This review presents the progress of research on crystal structure/morphology,photophysics/optical properties and applications of copper-based metal halides.We also discuss the challenges of copper-based metal halides with a perspective of their future research directions.
基金Project supported by the National Natural Science Foundation of China(Grant Nos.11674139,11704166,and 11834005)the Fundamental Research Funds for the Central Universities,China,and PCSIRT,China(Grant No.IRT-16R35).
文摘Motivated by recent experimental progress on triangular lattice heavy-fermion compounds,we investigate possible Lifshitz transitions and the scanning tunnel microscope(STM)spectra of the Kondo-Heisenberg model on the triangular lattice.In the heavy Fermi liquid state,the introduced Heisenberg antiferromagnetic interaction(JH)results in the twice Lifshitz transition at the case of the nearest-neighbour electron hopping but with next-nearest-neighbour hole hopping and the case of the nearest-neighbour hole hopping but with next-nearest-neighbour electron hopping,respectively.Driven by JH,the Lifshitz transitions on triangular lattice are all continuous in contrast to the case on square lattice.Furthermore,the STM spectra shows rich line-shape which is influenced by the Kondo coupling JK,the Heisenberg antiferromagnetic interaction JH,and the ratio of the tunneling amplitude of f-electron tf versus conduction electron tc.Our work provides a possible scenario to understand the Fermi surface topology and the quantum critical point in heavy-fermion compounds.
