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122 papers · 1 filter
Spin waves and magnetic interactions in LiCu2O2
T. Masuda, A. Zheludev, B. Roessli +2
The quasi-one-dimensional helimagnet LiCu2O2 was studied by single crystal inelastic neutron scattering. The dispersion relation of spin wave excitations was measured in the vicini…
Role of strong correlation in the recent ARPES experiments for cuprate superconductors
S. Yunoki, E. Dagotto, S. Sorella
Motivated by recent photoemission experiments on cuprates, the low-lying excitations of a strongly correlated superconducting state are studied numerically. It is observed that alo…
The Role of Grain Boundaries in Determining the Transport Properties in Magnetite
David C. Mertens, W. Montfrooij, R. J. McQueeney +2
We present magnetoresistance and Hall-effect measurements on single crystal magnetite Fe3O4 close to the Verwey transition Tv = 123.8 K. We show that the formation of grain boundar…
Reply to Comment on "Competition between helimagnetism and commensurate quantum spin correlations in LiCu2O2"
T. Masuda, A. Zheludev, A. Bush +2
Exchanged interactions in recently observed helical structure in LiCu2O2 is probed by inelastic neutron scattering. The main conlusions of Refs. [1,2] are confirmed: nn interaction…
Close-coupling calculations of low-energy inelastic and elastic processes in He collisions with H: A comparative study of two potential energy surfaces
T. G. Lee, C. Rochow, R. Martin +7
The two most recently published potential energy surfaces (PESs) for the HeH complex, the so-called MR (Muchnick and Russek) and BMP (Boothroyd, Martin, and Peterson) surfaces,…
Meson-Meson Scattering in Relativistic Constraint Dynamics
Horace W. Crater, Cheuk-Yin Wong
Dirac's relativistic constraint dynamics have been successfully applied to obtain a covariant nonperturbative description of QED and QCD bound states. We use this formalism to desc…