Pei-Jia Hu

Central South University | CSU · Department of Applied Physics

Line defects (LDs) in borophenes, which occur at the interface between two different boron sheets, have garnered considerable interest. Motivated by recent advancements in the synthesis of diverse borophene polymorphs and heterojunctions, we investigate the contact effects on electron transport through two-terminal disordered borophene nanoribbons...

The observation of spin Seebeck effect has triggered intense research in the spintronics. Especially, it is considered to be one alternative method to generate pure spin current in magnetic materials. Here, the spin Seebeck coefficient and the spin figure of merit are calculated by using Green's function method in the spiral spin chain with Dzyalos...

Recent experiments have revealed multiple borophene phases of distinct lattice structures, suggesting that the unit cells of ν1/6 and ν1/5 boron sheets, namely α and β chains, serve as building blocks to assemble into novel borophene phases. Motivated by these experiments, we present a theoretical study of electron transport along two-terminal quas...

Bandgap engineering in graphene has been a hot topic in condensed matter physics. Although several line defects have been experimentally reported in graphene, the relationship between the bandgap engineering and the line defects has not yet been discussed. In this article, by combinig the Green's function method with the Landauer-Büttiker formula,...

DNA electronics has reattracted great interest in recent years and showed a number of fascinating phenomena. Here, we present a theoretical study of electron transport through a two-terminal circular DNA junction under a perpendicular magnetic field. Our results indicate that this circular DNA exhibits Aharonov–Bohm-like effects and a semiconductor...

Recently, borophene has attracted extensive interest as the wonder material, showing that line defects (LDs) occur widely at the interface between ν1/5 and ν1/6 boron sheets. Here, we study theoretically the electron transport through two-terminal disordered borophene nanoribbons (BNRs) with random distribution of LDs. Our results indicate that LDs...

As a secondary structure of DNA, DNA tetrahedra exhibit intriguing charge-transport phenomena and provide a promising platform for wide applications like biosensors, as shown in recent electrochemical experiments. Here, we study charge transport in a multiterminal DNA tetrahedron, finding that its charge-transport properties strongly depend upon th...

Very recently, borophene has been attracting extensive and ongoing interest as the new wonder material with structural polymorphism and superior attributes, showing that the structural imperfection of line defects (LDs) occurs widely at the interface between $\nu_{1/5}$ ($\chi_3$) and $\nu_{1/6}$ ($\beta_{12}$) boron sheets. Motivated by these expe...

As a secondary structure of DNA, DNA tetrahedra exhibit intriguing charge transport phenomena and provide a promising platform for wide applications like biosensors, as shown in recent electrochemical experiments. Here, we study charge transport in a multi-terminal DNA tetrahedron, finding that its charge transport properties strongly depend upon t...

The chirality-induced spin selectivity (CISS), demonstrated in diverse chiral molecules by numerous experimental and theoretical groups, has been attracting extensive and ongoing interest in recent years. As the secondary structure of DNA, the charge transfer along DNA hairpins has been widely studied for more than two decades, finding that DNA hai...

The chirality-induced spin selectivity (CISS), demonstrated in diverse chiral molecules by numerous experimental and theoretical groups, has been attracting extensive and ongoing interest in recent years. As the secondary structure of DNA, the charge transfer along DNA hairpins has been widely studied for more than two decades, finding that DNA hai...

Recent studies indicated that helical organic molecules, such as DNA and $\alpha$-helical protein, can behave as Thouless quantum pumps when a rotating electric field is applied perpendicularly to their helical axes. Here we investigate the influence of long-range hoppings on this topological pumping of electrons in single-helical organic molecules...