Probing the anisotropy of (Li0.84Fe0.16)OHFe0.98Se by angular-dependent torque measurements

Doping effects of transition metals on the superconductivity of (Li,Fe)OHFeSe films*

“…High-T c (42 K) FeSe-based compound (Li,Fe)OHFeSe [1] has received extensive attention because of the rich physics in the superconducting (SC) and normal states [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] as well as the potential for application. [19][20][21][22][23][24][25] The intercalated (Li,Fe)OHFeSe, sharing a similar electronic structure [7,8] with the prototypal FeSe monolayer, exhibits a strong electronic two-dimensionality and a nearly linear magnetic susceptibility extracted for the iron planes, [5] supporting the presence of magnetic fluctuations further evidenced by the inelastic neutron scatterings.…”

Anisotropy of Ca0.73La0.27(Fe0.96Co0.04)As2 studied by torque magnetometry*

“…[13,14] Torque is a thermodynamic approach, which is defined by the angular derivative of the free energy. [15] It has been successfully applied to investigate the anisotropy of FeSCs, cuprates, heavy fermion superconductors,and intermetallic compounds, see our previous work [16][17][18][19] and other reports. [20][21][22][23] Ca 0.73 La 0.27 FeAs 2 is regarded as a parent compound of 112 type iron-based superconductors.…”