DepartmentofPhysics;
ShandongUniversity;
Jinan250100;
StateKeyLaboratoryofCrystalMaterials;
ShandongUniversity;
Jinan250100;
SchoolofChemistrvandChemicalEngineering;
ShandongUniversity;
Jinan250100;
ShanghaiInstituteofOpticsandFineMechanics;
ChineseAcademyofSciences;
Shanghai201800;
DepartmentofTechnicalPhysicsandtheKeyLaboratoryofHeavyIonPhysics(MinistryofEducation);
PekingUniversity;
Beijing100871University;
Beijing100871;