Nematic spin correlations in the tetragonal state of uniaxial-strained BaFe2−xNixAs2

X Lu, JT Park, R Zhang, H Luo, AH Nevidomskyy, Q Si… - Science, 2014 - science.org
Understanding the microscopic origins of electronic phases in high-transition temperature
(high-T c) superconductors is important for elucidating the mechanism of superconductivity …

Nature of magnetic excitations in superconducting BaFe1.9Ni0.1As2

M Liu, LW Harriger, H Luo, M Wang, RA Ewings… - Nature Physics, 2012 - nature.com
Since the discovery of the metallic antiferromagnetic (AF) ground state near
superconductivity in iron pnictide superconductors,,, a central question has been whether …

Coexistence and Competition of the Short-Range Incommensurate Antiferromagnetic Order with the Superconducting State of

H Luo, R Zhang, M Laver, Z Yamani, M Wang, X Lu… - Physical review …, 2012 - APS
Superconductivity in the iron pnictides develops near antiferromagnetism, and the
antiferromagnetic (AF) phase appears to overlap with the superconducting phase in some …

Preferred Spin Excitations in the Bilayer Iron-Based Superconductor with Spin-Vortex Crystal Order

C Liu, P Bourges, Y Sidis, T Xie, G He, F Bourdarot… - Physical Review Letters, 2022 - APS
Spin-orbit coupling (SOC) is a key to understand the magnetically driven superconductivity
in iron-based superconductors, where both local and itinerant electrons are present and the …

Spin Excitation Anisotropy as a Probe of Orbital Ordering in the Paramagnetic <?format ?>Tetragonal Phase of Superconducting

H Luo, M Wang, C Zhang, X Lu, LP Regnault, R Zhang… - Physical review …, 2013 - APS
We use polarized neutron scattering to demonstrate that in-plane spin excitations in electron
doped superconducting BaFe 1.904 Ni 0.096 As 2 (T c= 19.8 K) change from isotropic to …

Longitudinal Spin Excitations and Magnetic Anisotropy <?format ?>in Antiferromagnetically Ordered

C Wang, R Zhang, F Wang, H Luo, LP Regnault, P Dai… - Physical Review X, 2013 - APS
We report on a spin-polarized inelastic neutron-scattering study of spin waves in the
antiferromagnetically ordered state of Ba Fe 2 As 2. Three distinct excitation components are …

Nematic Quantum Critical Fluctuations in

Z Liu, Y Gu, W Zhang, D Gong, W Zhang, T Xie, X Lu… - Physical Review Letters, 2016 - APS
We have systematically studied the nematic fluctuations in the electron-doped iron-based
superconductor BaFe 2-x Ni x As 2 by measuring the in-plane resistance change under …

Short-Range Cluster Spin Glass Near Optimal Superconductivity in BaFeNiAs

X Lu - Phase Diagram and Magnetic Excitations of BaFe2 …, 2017 - Springer
In Chap. 4, we noted that the emergent incommensurate (IC) short-range antiferromagnetic
(AF) order near optimal superconductivity of Ba (Fe _ 1-x 1-x Co _ xx) _2 2 As _ 2 2 heavily …

Impact of uniaxial pressure on structural and magnetic phase transitions in electron-doped iron pnictides

X Lu, KF Tseng, T Keller, W Zhang, D Hu, Y Song… - Physical Review B, 2016 - APS
We use neutron resonance spin echo and Larmor diffraction to study the effect of uniaxial
pressure on the tetragonal-to-orthorhombic structural (T s) and antiferromagnetic (AF) phase …

Electron doping evolution of the anisotropic spin excitations in BaFeNiAs

H Luo, Z Yamani, Y Chen, X Lu, M Wang, S Li… - Physical Review B …, 2012 - APS
We use inelastic neutron scattering to systematically investigate the Ni-doping evolution of
the low-energy spin excitations in BaFe 2− x Ni x As 2 spanning from underdoped …