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相关论文: Crystals for neutron scattering studies of quantum…

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In this paper we report results for magnetic observables of finite spin clusters composed of S=1/2 ions. We consider clusters of two, three and four spins in distinct spatial arrangements, with isotropic Heisenberg interactions of various…

强关联电子 · 物理学 2009-11-10 J. T. Haraldsen , T. Barnes , J. L. Musfeldt

Magnetic molecules, modelled as finite-size spin systems, are test-beds for quantum phenomena and could constitute key elements in future spintronics devices, long-lasting nanoscale memories or noise-resilient quantum computing platforms.…

量子物理 · 物理学 2021-03-16 A. Chiesa , F. Tacchino , M. Grossi , P. Santini , I. Tavernelli , D. Gerace , S. Carretta

A theoretical study has been carried out to analyse the available results from the inelastic neutron scattering experiment performed on a quasi-two dimensional spin-1/2 ferromagnetic material $K_2CuF_4$. Our formalism is based on a…

强关联电子 · 物理学 2014-10-23 Subhajit Sarkar , Samir K. Paul , Ranjan Chaudhury

A brief review of recent advances in neutron scattering studies of low-dimensional quantum magnets is followed by a particular example. The separation of single-particle and continuum states in the weakly-coupled $S=1/2$ chains system…

强关联电子 · 物理学 2007-05-23 A. Zheludev

Inelastic neutron scattering measurements are reported for a powder sample of the spin-1/2 quantum paramagnet $\rm Cu(Quinoxaline)Br_2$. Magnetic neutron scattering is identified above an energy gap of 1.9 meV. Analysis of the sharp…

The NCrystal library provides a range of models for simulation of both elastic and inelastic scattering of thermal neutrons in a range of material structures. This article presents the available models for elastic scattering, and includes…

计算物理 · 物理学 2021-07-28 Thomas Kittelmann , Xiao-Xiao Cai

We report measurements of the two-magnon states in a dimerized antiferromagnetic chain material, copper nitrate (Cu(NO3)2*2.5D2O). Using inelastic neutron scattering we have measured the one and two magnon excitation spectra in a large…

强关联电子 · 物理学 2015-07-21 D. A. Tennant , C. Broholm , D. H. Reich , S. E. Nagler , G. E. Granroth , T. Barnes , K. Damle , G. Xu , Y. Chen , B. C. Sales

We review the results of recent studies of the elastic and inelastic neutron scattering from a variety of heavy fermion compounds. This class of materials exhibits a rich variety of ground states: antiferromagnetically ordered,…

凝聚态物理 · 物理学 2007-05-23 T. E. Mason , G. Aeppli

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…

强关联电子 · 物理学 2023-09-29 Thomas A. Maier , Satoshi Okamoto

Molecular Nanomagnets have attracted the attention of the scientific community since the rich physics behind their magnetic behaviour make them ideal test-beds for fundamental concepts in quantum mechanics. Sophisticated experiments and…

介观与纳米尺度物理 · 物理学 2021-01-19 Elena Garlatti , Alessandro Chiesa , Tatiana Guidi , Giuseppe Amoretti , Paolo Santini , Stefano Carretta

Quite a few low-dimensional magnets are quantum-disordered ``spin liquids'' with a characteristic gap in the magnetic excitation spectrum. Among these are antiferromagnetic chains of integer quantum spins. Their generic feature are…

强关联电子 · 物理学 2009-11-11 A. Zheludev

Time crystals, a unique non-equilibrium quantum phenomenon with promising applications in current quantum technologies, mark a significant advance in quantum mechanics. Although traditionally studied in atom-cavity and optical lattice…

量子物理 · 物理学 2024-10-07 Subhajit Sarkar , Yonatan Dubi

Topological magnetism has sparked an unprecedented age in quantum technologies. Marked by twisted spin structures with exotic dynamical modes, topological magnets have motivated a new generation of spintronic devices which transcend the…

材料科学 · 物理学 2024-07-16 M. E. Henderson , D. G. Cory , D. Sarenac , D. A. Pushin

The technique of polarized neutron scattering is reviewed with emphasis on applications. Many examples of the usefulness of the method in various fields of physics are given like the determination of spin density maps, measurement of…

强关联电子 · 物理学 2007-05-23 B. Roessli , P. Böni

We consider different methods and observables which can be obtained by the measurement of neutrino scattering off nucleons and nuclei with the purpose of finding evidence for the strange form factors of the nucleon, which enter into…

高能物理 - 唯象学 · 物理学 2007-05-23 W. M. Alberico

Recent theory and experiment in crystals of molecular magnets suggest that fundamental tests of the decoherence mechanisms of macroscopic quantum phenomena may be feasible in these systems (which are almost ideal quantum spin glasses). We…

凝聚态物理 · 物理学 2007-05-23 N. V. Prokof'ev , P. C. E. Stamp

We present a method of studying few-body nuclear scattering by means of neural quantum states, without requiring time-evolution. A recently developed family of stable minimum principles for Schrodinger's equation provides conservative…

核理论 · 物理学 2026-05-29 Scott Lawrence , Yukari Yamauchi

The space- and time-dependent response of many-body quantum systems is the most informative aspect of their emergent behaviour. The dynamical structure factor, experimentally measurable using neutron scattering, can map this response in…

强关联电子 · 物理学 2013-09-27 B. Lake , D. A. Tennant , J. -S. Caux , T. Barthel , U. Schollwöck , S. E. Nagler , C. D. Frost

Several different scenarios for neutrino scattering experiments using a neutrino beam from the muon collider complex are discussed. The physics reach of a neutrino experiment at the front end of a muon collider is shown to extend far beyond…

高能物理 - 实验 · 物理学 2010-02-02 Deborah A. Harris , Kevin S. McFarland

Incoherent neutron scattering experiments are simulated for simple dynamic models: a glass (with a smooth distribution of harmonic vibrations) and a viscous liquid (described by schematic mode-coupling equations). In most situations…

软凝聚态物质 · 物理学 2009-10-31 Joachim Wuttke
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