T. G. Perring
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View article: Using generative adversarial networks to match experimental and simulated inelastic neutron scattering data
Using generative adversarial networks to match experimental and simulated inelastic neutron scattering data Open
Supervised machine learning (ML) models are frequently trained on large datasets of physics-based simulations with the aim of being applied to experimental data. However, ML models trained on simulated data often struggle to perform on exp…
View article: Using generative adversarial networks to match experimental and simulated inelastic neutron scattering data
Using generative adversarial networks to match experimental and simulated inelastic neutron scattering data Open
Files uploaded here are related to the paper titled "Using generative adversarial networks to match experimental and simulated inelastic neutron scattering data". Here we investigate how generative adversarial networks can be used to match…
View article: Using generative adversarial networks to match experimental and simulated inelastic neutron scattering data
Using generative adversarial networks to match experimental and simulated inelastic neutron scattering data Open
Files uploaded here are related to the paper titled "Using generative adversarial networks to match experimental and simulated inelastic neutron scattering data". Here we investigate how generative adversarial networks can be used to match…
View article: <i>Euphonic</i>: inelastic neutron scattering simulations from force constants and visualization tools for phonon properties
<i>Euphonic</i>: inelastic neutron scattering simulations from force constants and visualization tools for phonon properties Open
Interpretation of vibrational inelastic neutron scattering spectra of complex systems is frequently reliant on accompanying simulations from theoretical models. Ab initio codes can routinely generate force constants, but additional steps a…
View article: Euphonic: inelastic neutron scattering simulations from force constants and visualisation tools for phonon properties
Euphonic: inelastic neutron scattering simulations from force constants and visualisation tools for phonon properties Open
Interpretation of vibrational inelastic neutron scattering spectra of complex systems is frequently reliant on accompanying simulations from theoretical models. Ab-initio codes can routinely generate force constants, but additional steps a…
View article: Low-energy Spin Dynamics of Quantum Spin Liquid Candidate $NaYbSe_{2}$
Low-energy Spin Dynamics of Quantum Spin Liquid Candidate $NaYbSe_{2}$ Open
The family of rare earth chalcogenides $ARECh_{2}$ (A = alkali or monovalent ions, RE = rare earth, and Ch = O, S, Se, and Te) appears as an inspiring playground for studying quantum spin liquids (QSL). The crucial low-energy spin dynamics…
View article: Data files for INS data analysis course at github.com/pace-neutrons/edatc
Data files for INS data analysis course at github.com/pace-neutrons/edatc Open
Large data files for use in the inelastic neutron training course hosted at https://github.com/pace-neutrons/edatc Included are: UPd3 measured on MERLIN (M. D. Le et al., 2008) bcc-Iron measured on MAPS (T. G. Perring et al., 2010) CuGeO3 …
View article: Data files for INS data analysis course at github.com/pace-neutrons/edatc
Data files for INS data analysis course at github.com/pace-neutrons/edatc Open
Large data files for use in the inelastic neutron training course hosted at https://github.com/pace-neutrons/edatc\n\nIncluded are:\n\n\nUPd3 measured on MERLIN (M. D. Le et al., 2008)\nbcc-Iron measured on MAPS (T. G. Perring et al., 2010…
View article: Carrier Tuning of Stoner Ferromagnetism in ThCr$_{\mathbf{2}}$Si$_{\mathbf{2}}$-Structure Cobalt Arsenides
Carrier Tuning of Stoner Ferromagnetism in ThCr$_{\mathbf{2}}$Si$_{\mathbf{2}}$-Structure Cobalt Arsenides Open
CaCo$_{2-y}$As$_2$ is an unusual itinerant magnet with signatures of extreme magnetic frustration. The conditions for establishing magnetic order in such itinerant frustrated magnets, either by reducing frustration or increasing electronic…
View article: Charge disproportionation and nano phase separation in $R$SrNiO$_4$
Charge disproportionation and nano phase separation in $R$SrNiO$_4$ Open
We have successfully grown centimeter-sized layered $R$SrNiO$_4$ single crystals under high oxygen pressures of 120 bar by the floating zone technique. This enabled us to perform neutron scattering experiments where we observe close to qua…
View article: Antiferromagnetic fluctuations and charge carrier localization in ferromagnetic bilayer manganites: electrical resistivity scales exponentially with short-range order controlled by temperature and magnetic field
Antiferromagnetic fluctuations and charge carrier localization in ferromagnetic bilayer manganites: electrical resistivity scales exponentially with short-range order controlled by temperature and magnetic field Open
The compound La2-2xSr1+2xMn2O7,x= 0.30-0.40, consists of bilayers of ferromagnetic metallic MnO2sheets that are separated by insulating layers. The materials show …
View article: Kagome modes, a new route to ultralow thermal conductivity?
Kagome modes, a new route to ultralow thermal conductivity? Open
From next generation gas turbines to scavenging waste heat from car exhausts, finding new materials with ultra-low thermal conductivity ($κ$) has the potential to lead to large gains in device efficiency. Crystal structures with inherently…
View article: Magnetic excitations in bulk multiferroic two-dimensional triangular lattice antiferromagnet (Lu,Sc)FeO$_3$
Magnetic excitations in bulk multiferroic two-dimensional triangular lattice antiferromagnet (Lu,Sc)FeO$_3$ Open
Non-collinear two-dimensional triangular lattice antiferromagnets (2D TLAF) are currently an area of very active research due to their unique magnetic properties, which lead to non-trivial quantum effects that experimentally manifest thems…
View article: Spontaneous decays of magneto-elastic excitations in non-collinear antiferromagnet (Y,Lu)MnO3
Spontaneous decays of magneto-elastic excitations in non-collinear antiferromagnet (Y,Lu)MnO3 Open
View article: Erratum: Spin excitations used to probe the nature of exchange coupling in the magnetically ordered ground state of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi mathvariant="bold">Pr</mml:mi><mml:mrow><mml:mn mathvariant="bold">0</mml:mn><mml:mo>.</mml:mo><mml:mn mathvariant="bold">5</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi mathvariant="bold">Ca</mml:mi><mml:mrow><mml:mn mathvariant="bold">0</mml:mn><mml:mo>.</mml:mo><mml:mn mathvariant="bold">5</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi mathvariant="bold">MnO</mml:mi><mml:mn mathvariant="bold">3</mml:mn></mml:msub></mml:mrow></mml:math>[Phys. Rev. B<b>94</b>, 014405 (2016)]
Erratum: Spin excitations used to probe the nature of exchange coupling in the magnetically ordered ground state of[Phys. Rev. B<b>94</b>, 014405 (2016)] Open
In the first column of p. 7 we omitted a term from the Heisenberg Hamiltonian that was used to analyze our data.The correct formula that we used for our analysis should be H, where D is a single-ion anisotropy term to constrain the spins t…
View article: Horace: Software for the analysis of data from single crystal spectroscopy experiments at time-of-flight neutron instruments
Horace: Software for the analysis of data from single crystal spectroscopy experiments at time-of-flight neutron instruments Open
The HORACE suite of programs has been developed to work with large\nmultiple-measurement data sets collected from time-of-flight neutron\nspectrometers equipped with arrays of position-sensitive detectors. The\nsoftware allows exploratory …
View article: Publisher's Note: Spin waves and spatially anisotropic exchange interactions in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>S</mml:mi><mml:mo>=</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math>stripe antiferromagnet<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">Rb</mml:mi><mml:mrow><mml:mn>0.8</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi mathvariant="normal">Fe</mml:mi><mml:mrow><mml:mn>1.5</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi mathvariant="normal">S</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>[Phys. Rev. B<b>92</b>, 041109(R) (2015)]
Publisher's Note: Spin waves and spatially anisotropic exchange interactions in thestripe antiferromagnet[Phys. Rev. B<b>92</b>, 041109(R) (2015)] Open
Author(s): Wang, M; Valdivia, P; Yi, M; Chen, JX; Zhang, WL; Ewings, RA; Perring, TG; Zhao, Y; Harriger, LW; Lynn, JW; Bourret-Courchesne, E; Dai, P; Lee, DH; Yao, DX; Birgeneau, RJ
View article: Magnetic excitation spectrum of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mi mathvariant="normal">LuFe</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mn>4</mml:mn></mml:msub></mml:math>measured with inelastic neutron scattering
Magnetic excitation spectrum ofmeasured with inelastic neutron scattering Open
We report neutron inelastic scattering measurements and analysis of the\nspectrum of magnons propagating within the Fe2O4 bilayers of LuFe2O4. The\nobserved spectrum is consistent with six magnetic modes and a single prominent\ngap, which …
View article: Diffusion in membranes: Toward a two-dimensional diffusion map
Diffusion in membranes: Toward a two-dimensional diffusion map Open
\nFor decades, quasi-elastic neutron scattering has been the prime tool for studying molecular diffusion in membranes over relevant nanometer distances. These experiments are essential to our current understanding of molecular dynamics of …
View article: Anomalous and anisotropic nanoscale diffusion of hydration water molecules in fluid lipid membranes
Anomalous and anisotropic nanoscale diffusion of hydration water molecules in fluid lipid membranes Open
We have studied nanoscale diffusion of membrane hydration water in fluid-phase lipid bilayers made of 1,2-dimyristoyl-3-phosphocholine (DMPC) using incoherent quasi-elastic neutron scattering. Dynamics were fit directly in the energy domai…