A. Moreo

activity

19932026

most citedColossal Magnetoresistant Materials: The Key Role of Phase Separation

3.6k citations · 10.7k across the 141 of their papers we have counts for

collaborators

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75 papers · 1 filter

cond-mat.str-el2025

Intertwined charge, spin, and orbital degrees of freedom under electronic correlations in the one-dimensional Fe $^{3 +}$ chalcogenide chain

Yang Zhang, Pontus Laurell, Gonzalo Alvarez +4

Motivated by recent developments in the study of quasi-one-dimensional iron systems with Fe $^{2 +}$ , we comprehensively study the Fe $^{3 +}$ chalcogenide chain system. Based on first…

cond-mat.str-el2025

Interlayer Pairing in Bilayer Nickelates

Thomas A. Maier, Peter Doak, Ling-Fang Lin +3

The discovery of $T_{c} \sim 80$ ~K superconductivity in pressurized La $_{3}$ Ni $_{2}$ O $_{7}$ has launched a new platform to study high-temperature superconductivity. Using non-perturbative d…

cond-mat.str-el2025★ 1 cited

Magnon damping and mode softening in quantum double-exchange ferromagnets

A. Moreo, E. Dagotto, G. Alvarez +3

We present a comprehensive analysis of the magnetic excitations and electronic properties of fully quantum double-exchange ferromagnets, i.e., systems where ferromagnetic ordering…

cond-mat.str-el2024★ 19 cited

Magnetic phase diagram of a two-orbital model for bilayer nickelates varying doping

Ling-Fang Lin, Yang Zhang, Nitin Kaushal +4

Motivated by the recently discovered high- $T_{c}$ bilayer nickelate superconductor La $_{3}$ Ni $_{2}$ O $_{7}$ , we comprehensively research a bilayer $2 \times 2 \times 2$ cluster for different el…

cond-mat.str-el2024★ 2 cited

Block Mott insulating state induced by next-nearest neighbor hopping in the S = 3/2 zigzag chain BaCoTe2O7

Ling-Fang Lin, Yang Zhang, Gonzalo Alvarez +2

Quasi-one-dimensional correlated electronic multi-orbital systems with either ladder or chain geometries continue attracting considerable interest due to their complex electronic p…

cond-mat.str-el2023★ 15 cited

Stability of the novel interorbital-hopping mechanism for ferromagnetism in multi-orbital Hubbard models

Ling-Fang Lin, Yang Zhang, Gonzalo Alvarez +4

Recently, it was argued that a ferromagnetic (FM) insulating phase can be induced by a novel {\it interorbital} hopping mechanism. Here, we study the stability range of this novel…

cond-mat.str-el2022★ 22 cited

Electronic structure, magnetic properties, spin orientation, and doping effect in Mn $_{3}$ Si $_{2}$ Te $_{6}$

Yang Zhang, Ling-Fang Lin, Adriana Moreo +1

The layered material Mn $_{3}$ Si $_{2}$ Te $_{6}$ , with alternating stacking honeycomb and triangular layers, is attracting considerable attention due to its rich physical properties. Here,…

cond-mat.str-el2022★ 13 cited

Strongly anisotropic electronic and magnetic structures in oxide dichlorides RuOCl $_{2}$ and OsOCl $_{2}$

Yang Zhang, Ling-Fang Lin, Adriana Moreo +3

Here, using density functional theory and density matrix renormalization group methods, we investigate the electronic and magnetic properties of RuOCl $_{2}$ and OsOCl $_{2}$ with $d^{4}$ …

cond-mat.str-el2022★ 6 cited

Electronic structure, magnetic properties and pairing tendencies of the copper-based honeycomb lattice Na $_{2}$ Cu $_{2}$ TeO $_{6}$

Ling-Fang Lin, Rahul Soni, Yang Zhang +6

Spin- $1/2$ chains with alternating antiferromagnetic and ferromagnetic couplings have attracted considerable interest due to the topological character of their spin excitations. He…

cond-mat.str-el2021★ 16 cited

Range of biquadratic and triquadratic Heisenberg effective couplings deduced from multiorbital Hubbard models

Rahul Soni, Nitin Kaushal, Cengiz Şen +3

We studied a multi-orbital Hubbard model at half-filling for two and three orbitals per site on a two-site cluster via full exact diagonalization, in a wide range for the onsite re…

cond-mat.str-el2021★ 17 cited

Prediction of orbital selective Mott phases and block magnetic states in the quasi-one-dimensional iron chain Ce $_{2}$ O $_{2}$ FeSe $_{2}$ under hole and electron doping

Ling-Fang Lin, Yang Zhang, Gonzalo Alvarez +3

The recent detailed study of quasi-one-dimensional iron-based ladders, with the $3 d$ iron electronic density $n = 6$ , has unveiled surprises, such as orbital-selective phases. Howe…

cond-mat.str-el2021

Theoretical study of the crystal and electronic properties of $α$ -RuI $_{3}$

Yang Zhang, Ling-Fang Lin, Adriana Moreo +1

The material $α$ -RuCl $_{3}$ , with a two-dimensional Ru-honeycomb sublattice, has attracted considerable attention because it may be a realization of the Kitaev quantum spin liquid (Q…

cond-mat.str-el2021★ 13 cited

Multitude of Topological Phase Transitions in Bipartite Dice and Lieb Lattices with Interacting Electrons and Rashba Coupling

Rahul Soni, Amit Bikram Sanyal, Nitin Kaushal +3

We report the results of a Hartree-Fock study applied to interacting electrons moving in two different bipartite lattices: the dice and the Lieb lattices, at half-filling. Both lat…

cond-mat.str-el2021★ 23 cited

Magnetic states of quasi-one-dimensional iron chalcogenide Ba $_{2}$ FeS $_{3}$

Yang Zhang, Ling-Fang Lin, Gonzalo Alvarez +2

Quasi-one-dimensional iron-based ladders and chains, with the 3 $d$ iron electronic density $n = 6$ , are attracting considerable attention. Recently, a new iron chain system Ba $_{2}$ F…

cond-mat.str-el2021★ 32 cited

Orbital-selective Peierls phase in the metallic dimerized chain MoOCl $_{2}$

Yang Zhang, Ling-Fang Lin, Adriana Moreo +1

Using {\it ab initio} density functional theory, here we systematically study the monolayer MoOCl $_{2}$ with a $4 d^{2}$ electronic configuration. Our main results is that an orbital-se…

cond-mat.str-el2021★ 32 cited

Origin of insulating ferromagnetism in iron oxychalcogenide Ce $_{2}$ O $_{2}$ FeSe $_{2}$

Ling-Fang Lin, Yang Zhang, Gonzalo Alvarez +2

An insulating ferromagnetic (FM) phase exists in the quasi-one-dimensional iron chalcogenide Ce $_{2}$ O $_{2}$ FeSe $_{2}$ but its origin is unknown. To understand the FM mechanism, here a s…

cond-mat.str-el2021★ 90 cited

Designer Magnetism in High Entropy Oxides

Alessandro R. Mazza, Elizabeth Skoropata, Yogesh Sharma +11

Disorder can have a dominating influence on correlated and quantum materials leading to novel behaviors which have no clean limit counterparts. In magnetic systems, spin and exchan…

cond-mat.str-el2021★ 13 cited

Oxygen magnetic polarization, nodes in spin density, and zigzag spin order in oxides

Ling-Fang Lin, Nitin Kaushal, Cengiz Şen +3

Recent DFT calculations for Ba2CoO4 (BCO) and neutron scattering experiments for SrRuO3 (SRO) have shown that oxygen develops a magnetic polarization. Moreover, DFT calculations fo…

cond-mat.str-el2020★ 32 cited

Peierls transition, ferroelectricity, and spin-singlet formation in the monolayer VOI $_{2}$

Yang Zhang, Ling-Fang Lin, Adriana Moreo +2

Using {\it ab initio} density functional theory and single-orbital Hubbard model calculations via the density matrix renormalization group method, we systematically studied the mon…

cond-mat.str-el2020★ 16 cited

Orbital ordering in the layered perovskite material CsVF $_{4}$

Ling-Fang Lin, Nitin Kaushal, Yang Zhang +2

In strongly correlated electronic systems, several novel physical properties are induced by the orbital degree of freedom. In particular, orbital degeneracy near the Fermi level le…

cond-mat.str-el2020★ 66 cited

Similarities and differences between nickelate and cuprate films grown on a SrTiO $_{3}$ substrate

Yang Zhang, Ling-Fang Lin, Wenjun Hu +3

The recent discovery of superconductivity in Sr-doped NdNiO $_{2}$ films grown on SrTiO $_{3}$ started a novel field within unconventional superconductivity. To understand the similariti…

cond-mat.str-el2020★ 19 cited

Block orbital-selective Mott insulators: a spin excitation analysis

J. Herbrych, G. Alvarez, A. Moreo +1

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 or…

cond-mat.str-el2019★ 27 cited

Iron telluride ladder compounds: Predicting the structural and magnetic properties of BaFe $_{2}$ Te $_{3}$

Yang Zhang, Ling-Fang Lin, Adriana Moreo +2

Since the discovery of pressure-induced superconductivity in the two-leg ladder system BaFe $_{2} X_{3}$ ( $X$ =S, Se), with the 3 $d$ iron electronic density $n = 6$ , the quasi-one-dimensi…

cond-mat.str-el2019★ 29 cited

Block-spiral magnetism: An exotic type of frustrated order

J. Herbrych, J. Heverhagen, G. Alvarez +3

Competing interactions in Quantum Materials induce novel states of matter such as frustrated magnets, an extensive field of research both from the theoretical and experimental pers…

Intertwined charge, spin, and orbital degrees of freedom under electronic correlations in the one-dimensional Fe3+ chalcogenide chain

Interlayer Pairing in Bilayer Nickelates

Magnon damping and mode softening in quantum double-exchange ferromagnets

Magnetic phase diagram of a two-orbital model for bilayer nickelates varying doping

Block Mott insulating state induced by next-nearest neighbor hopping in the S = 3/2 zigzag chain BaCoTe2O7

Stability of the novel interorbital-hopping mechanism for ferromagnetism in multi-orbital Hubbard models

Electronic structure, magnetic properties, spin orientation, and doping effect in Mn3​Si2​Te6​

Strongly anisotropic electronic and magnetic structures in oxide dichlorides RuOCl2​ and OsOCl2​

Electronic structure, magnetic properties and pairing tendencies of the copper-based honeycomb lattice Na2​Cu2​TeO6​

Range of biquadratic and triquadratic Heisenberg effective couplings deduced from multiorbital Hubbard models

Prediction of orbital selective Mott phases and block magnetic states in the quasi-one-dimensional iron chain Ce2​O2​FeSe2​ under hole and electron doping

Theoretical study of the crystal and electronic properties of α-RuI3​

Multitude of Topological Phase Transitions in Bipartite Dice and Lieb Lattices with Interacting Electrons and Rashba Coupling

Magnetic states of quasi-one-dimensional iron chalcogenide Ba2​FeS3​

Orbital-selective Peierls phase in the metallic dimerized chain MoOCl2​

Origin of insulating ferromagnetism in iron oxychalcogenide Ce2​O2​FeSe2​

Designer Magnetism in High Entropy Oxides

Oxygen magnetic polarization, nodes in spin density, and zigzag spin order in oxides

Peierls transition, ferroelectricity, and spin-singlet formation in the monolayer VOI2​

Orbital ordering in the layered perovskite material CsVF4​

Similarities and differences between nickelate and cuprate films grown on a SrTiO3​ substrate

Block orbital-selective Mott insulators: a spin excitation analysis

Iron telluride ladder compounds: Predicting the structural and magnetic properties of BaFe2​Te3​

Block-spiral magnetism: An exotic type of frustrated order

Intertwined charge, spin, and orbital degrees of freedom under electronic correlations in the one-dimensional Fe $^{3 +}$ chalcogenide chain

Electronic structure, magnetic properties, spin orientation, and doping effect in Mn $_{3}$ Si $_{2}$ Te $_{6}$

Strongly anisotropic electronic and magnetic structures in oxide dichlorides RuOCl $_{2}$ and OsOCl $_{2}$

Electronic structure, magnetic properties and pairing tendencies of the copper-based honeycomb lattice Na $_{2}$ Cu $_{2}$ TeO $_{6}$

Prediction of orbital selective Mott phases and block magnetic states in the quasi-one-dimensional iron chain Ce $_{2}$ O $_{2}$ FeSe $_{2}$ under hole and electron doping

Theoretical study of the crystal and electronic properties of $α$ -RuI $_{3}$

Magnetic states of quasi-one-dimensional iron chalcogenide Ba $_{2}$ FeS $_{3}$

Orbital-selective Peierls phase in the metallic dimerized chain MoOCl $_{2}$

Origin of insulating ferromagnetism in iron oxychalcogenide Ce $_{2}$ O $_{2}$ FeSe $_{2}$

Peierls transition, ferroelectricity, and spin-singlet formation in the monolayer VOI $_{2}$

Orbital ordering in the layered perovskite material CsVF $_{4}$

Similarities and differences between nickelate and cuprate films grown on a SrTiO $_{3}$ substrate

Iron telluride ladder compounds: Predicting the structural and magnetic properties of BaFe $_{2}$ Te $_{3}$