Sequential structural and antiferromagnetic transitions in under pressure

Y Zhang, LF Lin, JJ Zhang, E Dagotto, S Dong - Physical Review B, 2018 - APS
The discovery of superconductivity in the two-leg ladder compound BaFe 2 S 3 has
established the 123-type iron chalcogenides as a novel and interesting subgroup of the iron …

Spin dynamics of the block orbital-selective Mott phase

J Herbrych, N Kaushal, A Nocera, G Alvarez… - Nature …, 2018 - nature.com
Iron-based superconductors display a variety of magnetic phases originating in the
competition between electronic, orbital, and spin degrees of freedom. Previous theoretical …

Novel magnetic block states in low-dimensional iron-based superconductors

J Herbrych, J Heverhagen, ND Patel, G Alvarez… - Physical Review Letters, 2019 - APS
Inelastic neutron scattering recently confirmed the theoretical prediction of a↑↑↓↓-
magnetic state along the legs of quasi-one-dimensional iron-based ladders in the orbital …

Block–spiral magnetism: An exotic type of frustrated order

J Herbrych, J Heverhagen, G Alvarez… - Proceedings of the …, 2020 - National Acad Sciences
Competing interactions in quantum materials induce exotic states of matter such as
frustrated magnets, an extensive field of research from both the theoretical and experimental …

Quantum magnetism of iron-based ladders: Blocks, spirals, and spin flux

M Środa, E Dagotto, J Herbrych - Physical Review B, 2021 - APS
Motivated by increasing experimental evidence of exotic magnetism in low-dimensional iron-
based materials, we present a comprehensive theoretical analysis of magnetic states of the …

Block orbital-selective Mott insulators: a spin excitation analysis

J Herbrych, G Alvarez, A Moreo, E Dagotto - Physical Review B, 2020 - APS
We present a comprehensive study of the spin excitations—as measured by the dynamical
spin structure factor S (q, ω)—of the so-called block-magnetic state of low-dimensional …

Orbital order and fluctuations in the two-leg ladder materials ( and Se) and

K Takubo, Y Yokoyama, H Wadati, S Iwasaki… - Physical Review B, 2017 - APS
The electronic structure of BaFe 2 X 3 (X= S and Se) and CsFe 2 Se 3 in which two-leg
ladders are formed by the Fe sites are studied by means of x-ray absorption and resonant …

Robust block magnetism in the spin ladder compound under hydrostatic pressure

S Wu, J Yin, T Smart, A Acharya, CL Bull, NP Funnell… - Physical Review B, 2019 - APS
The majority of the iron-based superconductors (FeSCs) exhibit a two-dimensional square
lattice structure. Recent reports of pressure-induced superconductivity in the spin-ladder …

Effect of iron vacancies on magnetic order and spin dynamics of the spin ladder

Z Liu, XS Ni, L Li, H Sun, F Liang, BA Frandsen… - Physical Review B, 2022 - APS
Quasi-one-dimensional iron chalcogenides possess various magnetic states depending on
the lattice distortion, electronic correlations, and presence of defects. We present neutron …

Gradual enhancement of stripe-type antiferromagnetism in the spin-ladder material under pressure

L Zheng, BA Frandsen, C Wu, M Yi, S Wu, Q Huang… - Physical Review B, 2018 - APS
We report pressure-dependent neutron diffraction and muon spin relaxation/rotation
measurements combined with first-principles calculations to investigate the structural …