Hanbit Oh

activity

20242026

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cond-mat.str-el2024

High-temperature superconductivity from kinetic energy

Hanbit Oh, Hui Yang, Ya-Hui Zhang

Superconductivity is usually assumed to arise from attractive interaction. In this work we show that strong pairing is possible soley from kinetic energy even without a net attract…

cond-mat.str-el2024

Strong pairing and symmetric pseudogap metal in double Kondo lattice model: from nickelate superconductor to tetralayer optical lattice

Hui Yang, Hanbit Oh, Ya-Hui Zhang

In this work, we propose and study a double Kondo lattice model which hosts robust superconductivity. The system consists of two identical Kondo lattice model, each with Kondo coup…

cond-mat.str-el2024

Type II t-J model in charge transfer regime in bilayer La $_{3}$ Ni $_{2}$ O $_{7}$ and trilayer La $_{4}$ Ni $_{3}$ O $_{10}$

Hanbit Oh, Boran Zhou, Ya-Hui Zhang

Recent observations of an 80 K superconductor in La $_{3}$ Ni $_{2}$ O $_{7}$ under high pressure have attracted significant attention. Recent experiments indicate that La $_{3}$ Ni $_{2}$ O $_{7}$ may…

High-temperature superconductivity from kinetic energy

Strong pairing and symmetric pseudogap metal in double Kondo lattice model: from nickelate superconductor to tetralayer optical lattice

Type II t-J model in charge transfer regime in bilayer La3​Ni2​O7​ and trilayer La4​Ni3​O10​

Type II t-J model in charge transfer regime in bilayer La $_{3}$ Ni $_{2}$ O $_{7}$ and trilayer La $_{4}$ Ni $_{3}$ O $_{10}$