Nematicity, magnetism and superconductivity in FeSe

AE Böhmer, A Kreisel - Journal of Physics: Condensed Matter, 2017 - iopscience.iop.org
Iron-based superconductors are well known for their complex interplay between structure,
magnetism and superconductivity. FeSe offers a particularly fascinating example. This …

[HTML][HTML] Spin fluctuations in iron pnictides and chalcogenides: From antiferromagnetism to superconductivity

DS Inosov - Comptes Rendus Physique, 2016 - Elsevier
The present article reviews recent experimental investigations of spin dynamics in iron-
based superconductors and their parent compounds by means of inelastic neutron …

Strong interplay between stripe spin fluctuations, nematicity and superconductivity in FeSe

Q Wang, Y Shen, B Pan, Y Hao, M Ma, F Zhou… - Nature materials, 2016 - nature.com
In iron-based superconductors the interactions driving the nematic order (that breaks four-
fold rotational symmetry in the iron plane) may also mediate the Cooper pairing. The …

Origin of the resistivity anisotropy in the nematic phase of FeSe

MA Tanatar, AE Böhmer, EI Timmons, M Schütt… - Physical review …, 2016 - APS
The in-plane resistivity anisotropy is studied in strain-detwinned single crystals of FeSe. In
contrast to other iron-based superconductors, FeSe does not develop long-range magnetic …

Hydrogen Bonding versus Entropy: Revealing the Underlying Thermodynamics of the Hybrid Organic–Inorganic Perovskite [CH3NH3]PbBr3

G Kieslich, JM Skelton, J Armstrong, Y Wu… - Chemistry of …, 2018 - ACS Publications
The enormous research efforts dedicated to hybrid organic–inorganic perovskites have led
to a deep understanding of these materials; however, the role of entropy and its ramifications …

Impurity scattering effects on the superconducting properties and the tetragonal-to-orthorhombic phase transition in FeSe

M Abdel-Hafiez, YJ Pu, J Brisbois, R Peng, DL Feng… - Physical Review B, 2016 - APS
A comprehensive study of the doping dependence of the phase diagram of FeSe-based
superconductors is still required due to the lack of a clean and systematic means of doping …

NMR Evidence for Inhomogeneous Nematic Fluctuations in

AP Dioguardi, T Kissikov, CH Lin, KR Shirer… - Physical review …, 2016 - APS
We present evidence for nuclear spin-lattice relaxation driven by glassy nematic fluctuations
in isovalent P-doped BaFe 2 As 2 single crystals. Both the As 75 and P 31 sites exhibit a …

Effect of Nematic Order on the Low-Energy Spin Fluctuations in Detwinned

W Zhang, JT Park, X Lu, Y Wei, X Ma, L Hao, P Dai… - Physical review …, 2016 - APS
The origin of nematic order remains one of the major debates in iron-based
superconductors. In theories based on spin nematicity, one major prediction is that the spin …

Three-dimensional electronic structure of the nematic and antiferromagnetic phases of NaFeAs from detwinned angle-resolved photoemission spectroscopy

MD Watson, S Aswartham, LC Rhodes, B Parrett… - Physical Review B, 2018 - APS
We report a comprehensive angle-resolved photoemission spectroscopy study of NaFeAs, a
prototypical parent compound of the Fe-based superconductors. By mechanically …

Spin reorientation and Ce-Mn coupling in antiferromagnetic oxypnictide CeMnAsO

Q Zhang, W Tian, SG Peterson, KW Dennis, D Vaknin - Physical Review B, 2015 - APS
Structure and magnetic properties of high-quality polycrystlline CeMnAsO, a parent
compound of the “1111”-type oxypnictides, have been investigated using neutron powder …