Semimetallic two-dimensional boron allotrope with massless Dirac fermions

XF Zhou, X Dong, AR Oganov, Q Zhu, Y Tian… - Physical Review Letters, 2014 - APS
It has been widely accepted that planar boron structures, composed of triangular and
hexagonal motifs are the most stable two-dimensional (2D) phases and likely precursors for …

Visualization of electron nematicity and unidirectional antiferroic fluctuations at high temperatures in NaFeAs

EP Rosenthal, EF Andrade, CJ Arguello… - Nature physics, 2014 - nature.com
Superconductivity in the iron pnictides is often closely connected to a nematic state in which
the tetragonal symmetry of the crystal is spontaneously broken. Determining the dominant …

Distinct ultrafast dynamics of bilayer and trilayer nickelate superconductors regarding the density-wave-like transitions

Y Li, Y Cao, L Liu, P Peng, H Lin, C Pei, M Zhang… - Science Bulletin, 2025 - Elsevier
In addition to the pressurized high-temperature superconductivity, bilayer and trilayer
nickelate superconductors La n+ 1 Ni n O 3 n+ 1 (n= 2 and 3) exhibit many intriguing …

Critical quadrupole fluctuations and collective modes in iron pnictide superconductors

VK Thorsmølle, M Khodas, ZP Yin, C Zhang, SV Carr… - Physical Review B, 2016 - APS
The multiband nature of iron pnictides gives rise to a rich temperature-do** phase
diagram of competing orders and a plethora of collective phenomena. At low do**s, the …

Planar Heterojunction of Ultrathin CrTe3 and CrTe2 van der Waals Magnet

R Li, JH Nie, JJ **an, JW Zhou, Y Lu, MP Miao… - ACS …, 2022 - ACS Publications
The fabrication of planar heterojunctions with magnetic van der Waals ultrathin crystals is
essential for constructing miniaturized spintronic devices but is yet to be realized. Here, we …

Anisotropic but Nodeless Superconducting Gap in the Presence of Spin-Density <?format ?>Wave in Iron-Pnictide Superconductor

QQ Ge, ZR Ye, M Xu, Y Zhang, J Jiang, BP **e, Y Song… - Physical Review X, 2013 - APS
The coexisting regime of spin-density wave (SDW) and superconductivity in iron pnictides
represents a novel ground state. We have performed high-resolution angle-resolved …

Observation of Kondo condensation in a degenerately doped silicon metal

H Im, DU Lee, Y Jo, J Kim, Y Chong, W Song, H Kim… - Nature Physics, 2023 - nature.com
When a magnetic moment is embedded in a metal, it captures nearby itinerant electrons to
form a so-called Kondo cloud. When magnetic impurities are sufficiently dense that their …

Pairing insights in iron-based superconductors from scanning tunneling microscopy

CL Song, JE Hoffman - Current Opinion in Solid State and Materials …, 2013 - Elsevier
Scanning tunneling microscopy (STM) has made tremendous progress in the study and
understanding of both classical and unconventional superconductors. This has motivated a …

Visualizing the microscopic coexistence of spin density wave and superconductivity in underdoped NaFe1−xCoxAs

P Cai, X Zhou, W Ruan, A Wang, X Chen… - Nature …, 2013 - nature.com
Although the origin of high temperature superconductivity in the iron pnictides is still under
debate, it is widely believed that magnetic interactions or fluctuations have a crucial role in …

Single-particle tunneling spectroscopy and superconducting gaps in the layered iron-based superconductor

W Duan, K Chen, W Hong, X Chen, H Yang, S Li… - Physical Review B, 2021 - APS
We perform a scanning tunneling microscopy/spectroscopy study on the layered iron-based
superconductor KCa 2 Fe 4 As 4 F 2 with a critical temperature of about 33.5 K. Two types of …