Lisa DeBeer‐Schmitt

Multimode structured neutron beams

Owen Lailey, Dusan Sarenac, Charles W. Clark, David G. Cory et autres

The experimental realization of neutron orbital angular momentum (OAM) states and neutron Airy beams has opened new avenues for structured neutron science in both materials characterization and fundamental physics. These additional degrees of freedom in scattering experiments enable the exploration of selection …

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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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Incommensurate Magnetism Drives Singular Angular Magnetoresistance in the Magnetic Weyl Semimetal CeAlGe

Xiaohan Yao, P. Chen, Rahul K. Verma, X. Zhao et autres

We demonstrate that a multi-k incommensurate magnetic state in the Weyl semimetal CeAlGe gives rise to a singular angular magnetoresistance (SAMR), which is an electrical transport signature capable of detecting magnetic field direction with exceptional precision. In contrast, its sister compound CeAlSi …

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Effects of Magnetic Field-Assisted Tempering on HT-9 Ferritic/Martensitic Steels

Haluk Ersin Karaca, Kirk Lemmen, Nan Li, S.A. Maloy et autres

User Guide for Sample Reduction at GP-SANS

USDOE, Karin J. Bichler, Lisa DeBeer‐Schmitt, Lilin He et autres

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Sample changers for direct geometry neutron chopper spectrometers

M. B. Stone, Garrett E. Granroth, Daniel M. Pajerowski, Douglas L. Abernathy et autres

The advent of higher flux neutron sources has made the use of sample changers appropriate across the instrument suites at neutron scattering facilities. We examine the efficiency, design, and operation of two sample changers used at the thermal chopper spectrometers at the …

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Porosity in nuclear graphite and its impact on nuclear reactor science and criticality safety applications

Kemal Ramić, Luke Daemen, Travis M. Greene, Iyad Al-Qasir et autres

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Spin density wave and van Hove singularity in the kagome metal CeTi3Bi4

Pyeongjae Park, Brenden R. Ortiz, Milo Sprague, Anup Pradhan Sakhya et autres

Abstract Kagome metals with van Hove singularities near the Fermi level can host intriguing quantum phenomena such as chiral loop currents, electronic nematicity, and unconventional superconductivity. However, to our best knowledge, unconventional magnetic states driven by van Hove singularities–like spin-density waves–have not …

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Correlation between complex spin textures and the magnetocaloric and Hall effects in Eu ( Ga 1 − x Al x ) 4 ( x = 0.9 , 1)

Kelly J. Neubauer, Kevin Allen, Jaime M. Moya, Mason Klemm et autres

Determining the electronic phase diagram of a quantum material as a function of temperature ($T$) and applied magnetic field ($H$) forms the basis for understanding the microscopic origin of transport properties, such as the anomalous Hall effect (AHE) and topological Hall effect …

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Generation of Neutron Airy Beams

Dusan Sarenac, Owen Lailey, Melissa E. Henderson, Huseyin Ekinci et autres

The Airy wave packet is a solution to the potential-free Schrödinger equation that exhibits remarkable properties such as self-acceleration, nondiffraction, and self-healing. Although Airy beams are now routinely realized with electromagnetic waves and electrons, the implementation with neutrons has remained elusive due …

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Advancements in generating and manipulating structured neutrons

Dmitry A. Pushin, Owen Lailey, Dusan Sarenac, Charles W. Clark et autres

The experimental manipulation of neutrons with orbital angular momentum (OAM) has paved the way for significant advancements in both fundamental physics and materials science. This study introduces novel applications, including the interference of neutron states with different OAM to enhance Small Angle …

Carbonation of Alkaline Earth Metal Hydroxides: Structure across Nano- to Mesoscales

H. E. King, Ryan P. Murphy, Avery E. Baumann, Andrew P. Allen et autres

The conversion of gaseous CO 2 into a solid constitution through mineralization is an active area of carbon capture, and alkaline earth metal hydroxides (M(OH) 2, M = Ca 2+, Mg 2+ ) are frontrunners in this area. As model systems, nanolime …

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