Research progress of tuning correlated state in two-dimensional system by organic molecule intercalation

Abstract

By mechanical exfoliation, abundant novel physical properties have been observed in thin-flake samples of two-dimensional correlated electronic systems. Developing new methods for preparation of bulk two-dimensional samples can further deepen our understanding of the low-dimensional system by combining traditional bulk characterization methods like X-ray diffraction, magnetic susceptibility and specific heat measurements. It is possible to maintain the novel properties of thin-flake samples in bulk state and promote these novel physical properties to potential applications. This article will introduce a class of organic molecular intercalation methods to regulate two-dimensional correlated electronic systems, focusing on the changes of structure and physical properties of two-dimensional materials after organic molecular intercalation. We will introduce the application of organic molecular intercalation method in the regulation of thermoelectricity, two-dimensional magnetism, charge density wave and two-dimensional superconductivity.

Recent advances in quasi-2D superconductors via organic molecule intercalation

“…1(a), an electrolytic cell is assembled with the target material as the working electrode, the Ag piece as the counter electrode and the solution containing quaternary ammonium cations as the electrolyte. [42] A constant current is applied to the above electrolytic cell. When the current passes through the cell, the counter electrode loses electrons, and the working electrode obtains electrons accompanied by the insertion of organic ions to maintain the charge balance.…”