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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 compounds with 3d transition metals. Compared to other…

We investigated the pressure dependence of the superconducting transition temperature ($T_{\rm c}$) in optimally doped Bi$_2$Sr$_2$Ca$_2$Cu$_3$O$_{10+\delta}$ (Bi-2223) single crystals using different pressure-transmitting media. Previous…

The recent experiment shows the superconducting transition temperature in the Ruddlesden-Popper bilayer La$_3$Ni$_2$O$_{7}$ decreases monotonically with increasing pressure above 14 GPa. In order to unravel the underlying mechanism for this…

Superconductivity · Physics 2025-02-25 Kai-Yue Jiang , Yu-Han Cao , Qing-Geng Yang , Hong-Yan Lu , Qiang-Hua Wang

Motivated by the discovery of high-temperature superconductivity in bilayer nickelate La$_3$Ni$_2$O$_7$ under pressure, we investigate the ground-state phase diagram and correlation effects using determinant quantum Monte Carlo simulations…

Strongly Correlated Electrons · Physics 2025-02-07 Jian-Jian Yang , Dao-Xin Yao , Han-Qing Wu

The discovery of high-Tc superconductivity around 80K in bilayer nickelate La3Ni2O7 under high pressure has expanded the family of high-Tc superconductors above the nitrogen boiling temperature. Recent studies have further shown that…

Superconductivity · Physics 2025-02-04 H C Regan B. Bhatta , Xiaoliang Zhang , Yong Zhong , Chunjing Jia

Recently, a signature of high-temperature superconductivity above the liquid nitrogen temperature (77 K) was reported for $La_{3}Ni_{2}O_{7-\delta}$ under pressure. This finding immediately stimulated intense interest in the possible…

Superconductivity · Physics 2025-06-13 Dan Zhao , Yanbing Zhou , Mengwu Huo , Yu Wang , Linpeng Nie , Ye Yang , Jianjun Ying , Meng Wang , Tao Wu , Xianhui Chen

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 quest to understand the governing principles of RP nickelate…

Megabar pressures are of crucial importance for cutting-edge studies of condensed matter physics and geophysics. With the development of diamond anvil cell, laboratory studies of high pressure have entered the megabar era for decades.…

Quantum Physics · Physics 2024-09-26 Jian-Hong Dai , Yan-Xing Shang , Yong-Hong Yu , Yue Xu , Hui Yu , Fang Hong , Xiao-Hui Yu , Xin-Yu Pan , Gang-Qin Liu

We examine the possibility of probing superconductivity effects in metal nanoclusters via diamond magnetometry. Metal nanoclusters have been proposed as constitutive elements of high T$_c$ superconducting nanostructured materials.…

Superconductivity · Physics 2011-03-01 Louis-S. Bouchard , Victor M. Acosta , Erik Bauch , Dmitry Budker

The recent discovery of high-temperature superconductivity in high-pressurized La$_3$Ni$_2$O$_{7-\delta}$ has garnered significant attention. Using density functional theory, we investigate the magnetic properties of…

Materials Science · Physics 2024-12-30 Xiao-Sheng Ni , Yuyang Ji , Lixin He , Tao Xie , Dao-Xin Yao , Meng Wang , Kun Cao

Since the discovery of superconductivity in nickelate thin films in 2019, the quest for enhancing their $T_c$ has been ongoing. Here we provide experimental evidence for $T_c$ enhancement in oxygen deficient films on highly reduced and…

Superconductivity · Physics 2025-04-09 Anna Eyal , Gad Koren

Recently discovered high-$T_c$ superconductivity in thin-film bilayer nickelates La$_3$Ni$_2$O$_7$ under ambient pressure has attracted great interest. Non-Fermi-liquid transport behaviors, such as $T$-linear resistivity and a positive Hall…

Strongly Correlated Electrons · Physics 2026-05-13 Seiichiro Onari , Daisuke Inoue , Rina Tazai , Youichi Yamakawa , Hiroshi Kontani

The recently discovered nickelate superconductor La$_3$Ni$_2$O$_7$ has a high transition temperature near 80 K under pressure, which offers additional avenues of unconventional superconductivity. Here with state-of-the-art tensor-network…

Strongly Correlated Electrons · Physics 2024-01-23 Xing-Zhou Qu , Dai-Wei Qu , Jialin Chen , Congjun Wu , Fan Yang , Wei Li , Gang Su

Recently, signatures of superconductivity with critical temperature from 20 to 30 K have been reported in pressured trilayer nickelate La$_4$Ni$_3$O$_{10}$ through a pressure-induced structure transition. Here we explore the evolution of…

Strongly Correlated Electrons · Physics 2024-06-18 Peng-Fei Tian , Hao-Tian Ma , Xing Ming , Xiao-Jun Zheng , Huan Li

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 attention. It is essential to search for high-temperature…

Superconductivity · Physics 2025-01-28 Mengwu Huo , Peiyue Ma , Chaoxin Huang , Xing Huang , Hualei Sun , Meng Wang

Recently discovered high-T$_c$ superconductivity in pressurized bilayer nickelate La$_3$Ni$_2$O$_7$ (La-327) is believed to be driven by the non-phononic repulsive interaction. Depending on the strength of the interlayer repulsion, the…

Superconductivity · Physics 2025-04-15 Steffen Bötzel , Frank Lechermann , Takasada Shibauchi , Ilya M. Eremin

The discovery of superconductivity under high pressure with $T_c$ exceeding 80 K in a bilayer nickelate La$_3$Ni$_2$O$_7$ has led to a strong desire to realize similar high $T_c$ phenomena at ambient pressure. As one possible path toward…

Superconductivity · Physics 2025-02-20 Masayuki Ochi , Hirofumi Sakakibara , Hidetomo Usui , Kazuhiko Kuroki

The discovery of superconductivity with a critical temperature of about 80~K in La$_{3}$Ni$_{2}$O$_{7}$ single crystals under pressure has received enormous attention. La$_{3}$Ni$_{2}$O$_{7}$ is not superconducting under ambient pressure…

Superconductivity · Physics 2024-09-12 Zhe Liu , Mengwu Huo , Jie Li , Qing Li , Yuecong Liu , Yaomin Dai , Xiaoxiang Zhou , Jiahao Hao , Yi Lu , Meng Wang , Hai-Hu Wen

The recent discovery of bulk superconductivity in trilayer nickelate La$_4$Ni$_3$O$_{10}$ with the critical temperature $T_c$ near $30$K under high pressure is attracting a new wave of research interest, after the breakthrough of bilayer…

Superconductivity · Physics 2024-07-03 Qing-Geng Yang , Kai-Yue Jiang , Da Wang , Hong-Yan Lu , Qiang-Hua Wang

It is well known that copper-based perovskite oxides rightly enjoy consensus as high-temperature superconductors on the basis of two signatures: the resistive transition and the Meissner effect. We show that the resistive transitions in…

Superconductivity · Physics 2007-05-23 Guo-meng Zhao