Hualei Sun

activity

20142026

most citedSuperconductivity near 80 Kelvin in single crystals of La3Ni2O7 under pressure

752 citations · 2.6k across the 42 of their papers we have counts for

collaborators

42 papers

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.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

Evolution of the superconductivity in pressurized La3-xSmxNi2O7

Qingyi Zhong, Junfeng Chen, Zhengyang Qiu +7

Motivated by the discovery of superconductivity in bilayer La $_{3}$ Ni $_{2}$ O $_{7}$ at 80 K and the increased superconducting transition temperature, $T_{c}$ , up to 92 K in single cr…

cond-mat.supr-con2025★ 1 cited

Interlayer coupling enhanced superconductivity near 100 K in La $_{3 - x}$ Nd $_{x}$ Ni $_{2}$ O $_{7}$

Zhengyang Qiu, Junfeng Chen, Dmitrii V. Semenok +12

Systematically controlling the superconducting transition temperature ( $T_{c}$ ) in the bilayer Ruddlesden-Popper nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ remains a significant challenge. H…

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-con2025

Revealing superconducting gap in La $_{3}$ Ni $_{2}$ O $_{7}$ - $δ$ by Andreev reflection spectroscopy under high pressure

Jianning Guo, Yuzhi Chen, Yulong Wang +5

The recent discovery of compressed superconductivity at 80~K in La $_{3}$ Ni $_{2}$ O $_{7}$ - $δ$ has brought nickelates into the family of unconventional high-temperature superconductors. How…

cond-mat.str-el2025★ 3 cited

Ground state and magnetic transitions of the orthorhombic antiferromagnet CaCo $_{2}$ TeO $_{6}$

Xing Huang, Peiyue Ma, Mengwu Huo +8

We report the systematic synthesis, crystal structure, magnetization, and powder neutron diffraction of single crystalline and polycrystalline CaCo $_{2}$ TeO $_{6}$ samples. CaCo $_{2}$ TeO$…

cond-mat.supr-con2025

Low volume fraction of high-Tc superconductivity in La3Ni2O7 at 80 K and ambient pressure

Mengwu Huo, Peiyue Ma, Chaoxin Huang +3

The discovery of superconductivity in pressurized La3Ni2O7 with a transition temperature of approximately 80 K above the boiling point of liquid nitrogen has sparked significant at…

cond-mat.supr-con2024

Low-temperature mean valence of nickel ions in pressurized La $_{3}$ Ni $_{2}$ O $_{7}$

Shu Cai, Yazhou Zhou, Hualei Sun +18

The discovery of high critical temperature (Tc) superconductivity in pressurized La $_{3}$ Ni $_{2}$ O $_{7}$ has ignited renewed excitement in the search of novel high-Tc superconducting com…

cond-mat.supr-con2024★ 6 cited

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…

cond-mat.supr-con2024

Evolution of Electronic Correlations in the Ruddlesden-Popper Nickelates

Zhe Liu, Jie Li, Mengwu Huo +10

We report on optical studies of the Ruddlesden-Popper nickelates La $_{n + 1}$ Ni $_{n}$ O $_{3 n + 1}$ with $n = 2$ (La $_{3}$ Ni $_{2}$ O $_{7}$ ), $n = 3$ (La $_{4}$ Ni $_{3}$ O $_{10}$ ) and $n = \i…

cond-mat.supr-con2024★ 42 cited

Density-wave-like gap evolution in La $_{3}$ Ni $_{2}$ O $_{7}$ under high pressure revealed by ultrafast optical spectroscopy

Yanghao Meng, Yi Yang, Hualei Sun +8

Density wave (DW) order is believed to be correlated with superconductivity in the recently discovered high-temperature superconductor La $_{3}$ Ni $_{2}$ O $_{7}$ . However, experimental inve…

cond-mat.supr-con2024★ 76 cited

Identification of the superconductivity in bilayer nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ upon 100 GPa

Jingyuan Li, Di Peng, Peiyue Ma +14

Identification of superconductivity in the Ruddlesden-Popper phases of nickelates under high pressure remains challenging. Here, we report a comprehensive study of the crystal stru…

cond-mat.supr-con2024★ 139 cited

Electronic and magnetic excitations in La $_{3}$ Ni $_{2}$ O $_{7}$

Xiaoyang Chen, Jaewon Choi, Zhicheng Jiang +13

The striking discovery of high-temperature superconductivity (HTSC) of 80 K in a bilayer nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ under a moderately high pressure of about 14 GPa ignited a new…

cond-mat.supr-con2024★ 87 cited

Neutron Scattering Studies on the High- $T_{c}$ Superconductor La $_{3}$ Ni $_{2}$ O $_{7 - δ}$ at Ambient Pressure

Tao Xie, Mengwu Huo, Xiaosheng Ni +10

After several decades of studies of high-temperature superconductivity, there is no compelling theory for the mechanism yet; however, the spin fluctuations have been widely believe…

cond-mat.supr-con2023★ 243 cited

Visualization of Oxygen Vacancies and Self-doped Ligand Holes in La3Ni2O7-δ

Zehao Dong, Mengwu Huo, Jie Li +7

The recent discovery of superconductivity in La3Ni2O7-δ under high pressure with a transition temperature around 80 K has sparked extensive experimental and theoretical efforts. Se…

cond-mat.supr-con2023★ 124 cited

Structure responsible for the superconducting state in La3Ni2O7 at high pressure and low temperature conditions

Luhong Wang, Yan Li, Shengyi Xie +15

Very recently, a new superconductor with Tc = 80 K was reported in nickelate (La3Ni2O7) at around 15 - 40 GPa conditions (Nature, 621, 493, 2023) [1], which is the second type of u…

cond-mat.supr-con2023★ 74 cited

Structural transition, electric transport, and electronic structures in the compressed trilayer nickelate La4Ni3O10

Jingyuan Li, Cui-Qun Chen, Chaoxin Huang +13

Atomic structure and electronic band structure are fundamental properties for understanding the mechanism of superconductivity. Motivated by the discovery of pressure-induced high-…

cond-mat.supr-con2023★ 18 cited

Investigations of key issues on the reproducibility of high-Tc superconductivity emerging from compressed La3Ni2O7

Yazhou Zhou, Jing Guo, Shu Cai +11

Recently, the signatures of superconductivity near 80 K have been discovered in the single crystal of La3Ni2O7 under pressure, which makes it a new candidate of the high-temperatur…

cond-mat.mtrl-sci2023★ 1 cited

Signature of Topological Semimetal in Harmonic-honeycomb ReO3

Yifeng Han, Cui-Qun Chen, Hualei Sun +11

Transition-metal honeycomb compounds are capturing scientific attention due to their distinctive electronic configurations, underscored by the triangular-lattice spin-orbit couplin…

cond-mat.mtrl-sci2023★ 5 cited

Gap and magnetic engineering via doping and pressure in tuning the colossal magnetoresistance in (Mn $_{1 - x}$ Mg $_{x}$ ) $_{3}$ Si $_{2}$ Te $_{6}$

Chaoxin Huang, Mengwu Huo, Xing Huang +11

Ferrimagnetic nodal-line semiconductor Mn $_{3}$ Si $_{2}$ Te $_{6}$ keeps the records of colossal magnetoresistance (CMR) and angular magnetoresistance (AMR). Here we report tuning the elect…

cond-mat.supr-con2023★ 196 cited

Orbital-Dependent Electron Correlation in Double-Layer Nickelate La3Ni2O7

Jiangang Yang, Hualei Sun, Xunwu Hu +23

The latest discovery of high temperature superconductivity near 80K in La3Ni2O7 under high pressure has attracted much attention. Many proposals are put forth to understand the ori…

cond-mat.supr-con2023★ 284 cited

High-temperature superconductivity with zero-resistance and strange metal behavior in La $_{3}$ Ni $_{2}$ O $_{7 - δ}$

Yanan Zhang, Dajun Su, Yanen Huang +13

Recently signatures of superconductivity were observed close to 80 K in \LN\ under pressure. This discovery positions \LN\ as the first bulk nickelate with high-temperature superco…

cond-mat.supr-con2023★ 752 cited

Superconductivity near 80 Kelvin in single crystals of La3Ni2O7 under pressure

Hualei Sun, Mengwu Huo, Xunwu Hu +10

High-transition-temperature (high-T_c) superconductivity in cuprates has been discovered for more than three decades, but the underlying mechanism remains a mystery. Cuprates are t…

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

Identifying the structure of La3Ni2O7 in the pressurized superconducting state

Evolution of the superconductivity in pressurized La3-xSmxNi2O7

Interlayer coupling enhanced superconductivity near 100 K in La3−x​Ndx​Ni2​O7​

Superconductivity in monolayer-trilayer phase of La3​Ni2​O7​ under high pressure

Revealing superconducting gap in La3​Ni2​O7​-δ by Andreev reflection spectroscopy under high pressure

Ground state and magnetic transitions of the orthorhombic antiferromagnet CaCo2​TeO6​

Low volume fraction of high-Tc superconductivity in La3Ni2O7 at 80 K and ambient pressure

Low-temperature mean valence of nickel ions in pressurized La3​Ni2​O7​

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

Evolution of Electronic Correlations in the Ruddlesden-Popper Nickelates

Density-wave-like gap evolution in La3​Ni2​O7​ under high pressure revealed by ultrafast optical spectroscopy

Identification of the superconductivity in bilayer nickelate La3​Ni2​O7​ upon 100 GPa

Electronic and magnetic excitations in La3​Ni2​O7​

Neutron Scattering Studies on the High-Tc​ Superconductor La3​Ni2​O7−δ​ at Ambient Pressure

Visualization of Oxygen Vacancies and Self-doped Ligand Holes in La3Ni2O7-δ

Structure responsible for the superconducting state in La3Ni2O7 at high pressure and low temperature conditions

Structural transition, electric transport, and electronic structures in the compressed trilayer nickelate La4Ni3O10

Investigations of key issues on the reproducibility of high-Tc superconductivity emerging from compressed La3Ni2O7

Signature of Topological Semimetal in Harmonic-honeycomb ReO3

Gap and magnetic engineering via doping and pressure in tuning the colossal magnetoresistance in (Mn1−x​Mgx​)3​Si2​Te6​

Orbital-Dependent Electron Correlation in Double-Layer Nickelate La3Ni2O7

High-temperature superconductivity with zero-resistance and strange metal behavior in La3​Ni2​O7−δ​

Superconductivity near 80 Kelvin in single crystals of La3Ni2O7 under pressure

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

Interlayer coupling enhanced superconductivity near 100 K in La $_{3 - x}$ Nd $_{x}$ Ni $_{2}$ O $_{7}$

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

Revealing superconducting gap in La $_{3}$ Ni $_{2}$ O $_{7}$ - $δ$ by Andreev reflection spectroscopy under high pressure

Ground state and magnetic transitions of the orthorhombic antiferromagnet CaCo $_{2}$ TeO $_{6}$

Low-temperature mean valence of nickel ions in pressurized La $_{3}$ Ni $_{2}$ O $_{7}$

Density-wave-like gap evolution in La $_{3}$ Ni $_{2}$ O $_{7}$ under high pressure revealed by ultrafast optical spectroscopy

Identification of the superconductivity in bilayer nickelate La $_{3}$ Ni $_{2}$ O $_{7}$ upon 100 GPa

Electronic and magnetic excitations in La $_{3}$ Ni $_{2}$ O $_{7}$

Neutron Scattering Studies on the High- $T_{c}$ Superconductor La $_{3}$ Ni $_{2}$ O $_{7 - δ}$ at Ambient Pressure

Gap and magnetic engineering via doping and pressure in tuning the colossal magnetoresistance in (Mn $_{1 - x}$ Mg $_{x}$ ) $_{3}$ Si $_{2}$ Te $_{6}$

High-temperature superconductivity with zero-resistance and strange metal behavior in La $_{3}$ Ni $_{2}$ O $_{7 - δ}$