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For powder samples of polynuclear metal complexes the dependence of the inelastic neutron scattering intensity on the momentum transfer Q is known to be described by a combination of so called interference terms. They reflect the interplay…

Soft Condensed Matter · Physics 2009-11-10 O. Waldmann

We report an inelastic-neutron-scattering and muon-spin-relaxation study of the effect of 2% spinless (Zn) impurities on the magnetic order and dynamics of YBa$_2$Cu$_3$O$_{6.6}$, an underdoped high-temperature superconductor that exhibits…

Strongly Correlated Electrons · Physics 2015-05-18 A. Suchaneck , V. Hinkov , D. Haug , L. Schulz , C. Bernhard , A. Ivanov , K. Hradil , C. T. Lin , P. Bourges , B. Keimer , Y. Sidis

Inelastic neutron scattering provides a powerful probe of the magnetic excitations of quantum magnets. Altermagnets have recently emerged as a new class of magnets with vanishing net magnetization characteristic of antiferromagnets and with…

Strongly Correlated Electrons · Physics 2023-09-29 Thomas A. Maier , Satoshi Okamoto

Cross sections and analyzing powers for proton elastic scattering from $^{116,118,120,122,124}$Sn at 295 MeV have been measured for a momentum transfer of up to about 3.5 fm$^{-1}$ to deduce systematic changes of the neutron density…

Precision tests of the standard model are essential for constraining models of new physics. Neutrino-electron elastic scattering offers a clean probe into many electroweak effects that are complimentary to the more canonical measurements…

High Energy Physics - Phenomenology · Physics 2008-11-26 Andre de Gouvea , James Jenkins

Inelastic neutron scattering has been used to obtain a comprehensive description of the absolute dynamical spin susceptibility $\chi'' (q,\omega)$ of the underdoped superconducting cuprate YBa_2 Cu_3 O_{6.5} ($T_c = 52 K$) over a wide range…

Superconductivity · Physics 2009-10-30 Ph. Bourges , H. F. Fong , L. P. Regnault , J. Bossy , C. Vettier , D. L. Milius , I. A. Aksay , B. Keimer

Non-standard neutrino-nucleon interaction is formulated and explored within the energy range of quasi-elastic scattering. In particular, the study focuses on the neutral-current elastic (anti)neutrino scattering off nucleons described by…

High Energy Physics - Phenomenology · Physics 2016-12-28 D. K. Papoulias , T. S. Kosmas

Inelastic neutron scattering (INS) is a key method for studying magnetic excitations in spin systems, including molecular spin clusters. The method has significantly advanced in recent years and now permits to probe the scattering intensity…

Strongly Correlated Electrons · Physics 2021-07-30 Shadan Ghassemi Tabrizi

The role of antiferromagnetic spin correlations in high-temperature superconductors remains a matter of debate. We present inelastic neutron scattering evidence that gapless spin fluctuations coexist with superconductivity in…

Superconductivity · Physics 2014-10-23 Zhijun Xu , C. Stock , Songxue Chi , A. I. Kolesnikov , Guangyong Xu , Genda Gu , J. M. Tranquada

We report inelastic neutron scattering experiments on a single crystal of the intermediate valence compound CePd3. At 300 K the magnetic scattering is quasielastic, with halfwidth of 23 meV, and is independent of momentum transfer Q. At low…

Thermal effects for inelastic neutrino-nucleus scattering off even-even nuclei in the iron region are studied. Allowed and first-forbidden contributions to the cross sections are calculated within the quasiparticle random phase…

Nuclear Theory · Physics 2015-05-20 Alan A. Dzhioev , A. I. Vdovin , V. Yu. Ponomarev , J. Wambach

Nonuniform neutron-rich matter present in both core-collapse supernovae and neutron-star crusts is described in terms of a semiclassical model that reproduces nuclear-matter properties and includes long-range Coulomb interactions. The…

Astrophysics · Physics 2009-11-10 C. J. Horowitz , M. A. Perez-Garcia , J. Carriere , D. K. Berry , J. Piekarewicz

The spin dynamics of high temperature superconductors measured by inelastic neutron scattering is reviewed. The spin susceptibility evolves a lot with increasing doping from the undoped insulating state to the overdoped metallic state. In…

Superconductivity · Physics 2007-05-23 Philippe Bourges

A close inspection of neutron spectra of glass formers in the frequency region above the boson peak does not show the constant eigenvalue density expected for a random dynamical matrix, but a slow decrease towards higher eigenvalues. In…

Disordered Systems and Neural Networks · Physics 2007-05-23 U. Buchenau , A. Wischnewski , M. Ohl , E. Fabiani

Inelastic neutron scattering has been applied to the study of the spin dynamics of Cr-based antiferromagnetic octanuclear rings where a finite total spin of the ground state is obtained by substituting one Cr(III) ion (s = 3/2) with Zn (s =…

Nitrogen gas accidentally sealed in a sample container produces various spurious effects in elastic neutron scattering measurements. These effects are systematically investigated and the details of the spurious scattering are presented.

Paramagnetic correlations in the magnetic material Yb2Ti2O7 have been investigated via neutron scattering, revealing a [111] rod of scattering intensity. Assuming interactions between the Yb^{3+} ions composed of all symmetry-allowed…

Strongly Correlated Electrons · Physics 2011-06-28 Jordan D. Thompson , Paul A. McClarty , Henrik M. Ronnow , Louis P. Regnault , Andreas Sorge , Michel J. P. Gingras

An inelastic neutron scattering study was performed on a Zn-substituted spin-1/2 Heisenberg 2-leg ladder compound Sr(Cu1-xZnx)2O3 (x < 0.04) to investigate nonmagnetic impurity effects on the quantum spin system with a large spin gap of…

Condensed Matter · Physics 2009-10-30 M. Azuma , M. Takano , R. S. Eccleston

Inelastic neutron scattering and reactions on Pb isotopes can result in gamma rays near the signature endpoint energy in a number of double-beta decay isotopes. In particular, there are gamma-ray transitions in Pb-206,207,208 that might…

Nuclear Experiment · Physics 2010-05-27 V. E. Guiseppe , M. Devlin , S. R. Elliott , N. Fotiades , A. Hime , D. -M. Mei , R. O. Nelson , D. V. Perepelitsa

The NaZn13 type itinerant magnet LaFe13-xSix has seen considerable interest due to its unique combination of large magnetocaloric effect and low hysteresis. Here we demonstrate, with a combination of magnetometry, bespoke microcalorimetry…

Strongly Correlated Electrons · Physics 2024-05-15 K. Morrison , J. J. Betouras , G. Venkat , R. A. Ewings , A. Caruana , K. Skokov , O. Gutfleisch , L. F. Cohen