Robustness of the electronic structure and charge transfer in topological insulator Bi2Te2Se and Bi2Se2Te thin films under an external electric field

The electronic structure and charge transfer of Bi2Te2Se and Bi2Se2Te thin films are robust to an external electrical field.

Electric field control of resistive switching and magnetization in epitaxial LaBaCo2O5+δ thin films

Resistive switching and magnetization in epitaxial LaBaCo2O5+δ films can be controlled through an external electrical field, and the switching is related to the tuning of oxygen vacancies and the Co–O–Co bond length.

Theoretical studies on the structures and properties of doped graphenes with and without an external electrical field

To expand the applications of graphene in optoelectronic devices, B, Al, Si, Ge, As, and Sb doped graphenes (marked as B-G, Al-G, Si-G, Ge-G, As-G, and Sb-G, respectively) were synthesised.

Numerical Study of Joule Heating Effect on Dielectrophoresis-Based Circulating Tumor Cell Separation

Insulator-based dielectrophoresis (iDEP) is known as a powerful technique for separation and manipulation of bioparticles, using arrays of insulating posts and external electrical field. In this research, we utilized numerical simulation to study, in detail, the Joule heating which is one the most important phenomena in iDEP technique specially related to bioparticles separation and manipulation in physiological samples. Although Joule heating has been observed in both electrode-based and insulator dielectrophoresis, its effect is more significant in iDEP since higher electric potentials are required in this technology. As a result of the external electrical field, the temperature gradients would create conductivity, permittivity, viscosity and density local gradients in the solution, and consequently cause bulk fluid forces and fluid motion, known as electrothermal flow (ET). These flow circulations can cause unpredicted behavior of the device and even cause problems due to clogging. Moreover, the temperature rise due to the Joule heating could threaten the cell viability. In this study, we are going to develop a robust numerical model for predicting the flow behavior in the existence of external electric field and determining the temperature and velocity profile which can determine the cell viability and clogging problem in iDEP microdevices. The developed numerical tool was used based on the properties of circulating tumor cells (CTCs) and White blood cells (WBCs) and their separation.