Paul M. Neves

General Approach to Solving Spin Moiré Superstructures

Paul M. Neves, Takashi Kurumaji, Joshua P. Wakefield, A. Hiess et autres

Recently, a host of exciting magnetic textures such as topologically protected skyrmion lattices has been discovered in several bulk metallic lanthanide compounds. In addition to hosting skyrmion phases, a hallmark of this class of materials is the appearance of numerous spin textures …

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Cascade of Spin Moiré Superlattices with In-Plane Field in Triangular Lattice Semimetal EuAg 4 Sb 2

Paul M. Neves, Takashi Kurumaji, Joshua P. Wakefield, Chi Ian Jess Ip et autres

EuAg 4 Sb 2 is a rhombohedral europium triangular lattice material that exhibits a rich phase diagram of spin moiré superlattices (SMS) and single- q magnetic phases. In this paper, we characterize the incommensurate phases accessible with a field applied in the …

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A Fermi Surface Driven Spiral Spin Liquid

Paul M. Neves, Chi Ian Jess Ip, Takashi Kurumaji, Shiang Fang et autres

EuAg$_4$Sb$_2$ is a model material to study the interplay of electronic and spin texture degrees of freedom, exhibiting numerous multi-$q$ magnetic textures coupled with the electronic properties. It is generally understood that some combination of conduction-electron mediated interactions, frustration, and higher order …

A Fermi Surface Driven Spiral Spin Liquid

Paul M. Neves, Chi Ian Jess Ip, Takashi Kurumaji, Shiang Fang et autres

EuAg$_4$Sb$_2$ is a model material to study the interplay of electronic and spin texture degrees of freedom, exhibiting numerous multi-$q$ magnetic textures coupled with the electronic properties. It is generally understood that some combination of conduction-electron mediated interactions, frustration, and higher order …

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High-field triplet superconductivity in a transition metal dichalcogenide superlattice

S. Y. Frank Zhao, Paul M. Neves, Joshua P. Wakefield, Shiang Fang et autres

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Single-$q$ Cycloid and Double-$q$ Vortex Lattices in Layered Magnetic Semimetal EuAg$_4$Sb$_2$

Paul M. Neves, Takashi Kurumaji, Joshua P. Wakefield, A. Hiess et autres

Recently, a host of exotic magnetic textures such as topologically protected skyrmion lattices has been discovered in several bulk metallic lanthanide compounds. In addition to hosting skyrmion phases, a hallmark of this class of materials is the appearance of numerous spin textures …

Cascade of Spin Moiré Superlattices with In-Plane Field in Triangle Lattice Semimetal EuAg$_4$Sb$_2$

Paul M. Neves, Takashi Kurumaji, Joshua P. Wakefield, Chi Ian Jess Ip et autres

EuAg$_4$Sb$_2$ is a rhombohedral europium triangle lattice material that exhibits a rich phase diagram of spin moiré superlattices (SMS) and single-$q$ magnetic phases. In this paper, we characterize the incommensurate phases accessible with field applied in the plane with small angle neutron …

Electronic commensuration of a spin moiré superlattice in a layered magnetic semimetal

Takashi Kurumaji, Nisarga Paul, Shiang Fang, Paul M. Neves et autres

Spin moiré superlattices (SMSs) have been proposed as a magnetic analog of crystallographic moiré systems and a source of electron minibands offering vector-field moiré tunability and Berry curvature effects. However, it has proven challenging to realize an SMS in which a large …

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Measurements of the quantum geometric tensor in solids

Mingu Kang, Sunje Kim, Yuting Qian, Paul M. Neves et autres

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GRASP Integrated 3D Plotter : GRIP

Paul M. Neves, Jonathan Stuart White

In research on mesoscale structure and correlations, small-angle neutron scattering (SANS) is increasingly being employed to map fully three-dimensional distributions of scattered intensity at low momentum transfer. While traditionally SANS experiments and data analysis methods are designed to prioritize the determination of …

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Crystal net catalog of model flat band materials

Paul M. Neves, Joshua P. Wakefield, Shiang Fang, Haimi Nguyen et autres

Abstract Flat band systems are currently under intense investigation in quantum materials, optical lattices, and metamaterials. These efforts are motivated by potential realization of strongly correlated phenomena enabled by frustration-induced flat band dispersions; identification of candidate platforms plays an important role in …

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Photoinduced dynamics of flat bands in the kagome metal CoSn

Denny Puntel, Wibke Bronsch, Manuel Tuniz, Min Gu Kang et autres

CoSn is a prototypical kagome compound showing lattice-born flat bands with suppressed bandwidth over large parts of the Brillouin zone. Here, by means of time- and angle-resolved photoelectron spectroscopy, we provide direct evidence of the response to photoexcitation of the flat bands, …

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