Hengyuan Zhang

activity

20242026

collaborators

7 papers

cond-mat.supr-con2026

Unconventional Pressure Evolution of Spin-Density-Wave State in La $_{3}$ Ni $_{2}$ O $_{7}$

Xiaoxiang Zhou, Shiyu Xie, Liangxin Qiao +13

The discovery of pressure-induced high temperature superconductivity in the bilayer nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ has raised the question of how its spin-density-wave (SDW) sta…

cond-mat.supr-con2026

Regulating oxygen content and superconductivity in La $_{3}$ Ni $_{2}$ O $_{7 + δ}$

Peiyue Ma, Jingyuan Li, Xing Huang +17

The synthesis of high-quality Ruddlesden-Popper (RP) nickelates remains challenging due to variations in oxygen content and the prevalence of intergrown RP phases. Precisely contro…

cond-mat.str-el2026

Spectroscopic Evidence of Competing Diagonal Spin Interactions and Spin Disproportionation in the Bilayer Nickelate La $_{3}$ Ni $_{2}$ O $_{7}$

Dong-Hyeon Gim, Dirk Wulferding, Hengyuan Zhang +2

A comprehensive spectroscopic map of the electronic, magnetic, and lattice excitations is presented for the bilayer nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ using Raman scattering at ambient pr…

cond-mat.supr-con2025

Identifying the structure of La3Ni2O7 in the pressurized superconducting state

Hengyuan Zhang, Jielong Zhang, Mengwu Huo +6

The crystal structure of La3Ni2O7 in its high-pressure superconducting state has been the subject of intense debate, with conflicting reports proposing orthorhombic (Amam or Fmmm)…

cond-mat.supr-con2025

Superconductivity in monolayer-trilayer phase of La $_{3}$ Ni $_{2}$ O $_{7}$ under high pressure

Chaoxin Huang, Jingyuan Li, Xing Huang +7

The discovery of 80 K superconductivity in pressurized bilayer Ruddlesden-Popper (RP) nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ has established a new high-temperature superconductor family. The…

cond-mat.supr-con2024

Unveiling the multiband metallic nature of the normal state in nickelate La3Ni2O7

Bowen Chen, Hengyuan Zhang, Jingyuan Li +8

The discovery of unconventional superconductivity around 80 K in perovskite nickelates under high pressure has furnished a new platform to explore high-temperature unconventional s…

Unconventional Pressure Evolution of Spin-Density-Wave State in La3​Ni2​O7​

Regulating oxygen content and superconductivity in La3​Ni2​O7+δ​

Spectroscopic Evidence of Competing Diagonal Spin Interactions and Spin Disproportionation in the Bilayer Nickelate La3​Ni2​O7​