Results 1 to 10 of about 14,029,112 (274)
Role of higher-order exchange interactions for skyrmion stability [PDF]
Nature Communications, 2020 “Skyrmions are spin textures with topological charge that have considerable technological potential due to their stability. In this theoretical work, the authors demonstrate the importance of previous unconsidered higher-order exchange terms to the ...
Souvik Paul +3 more
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Exchange Rate Fundamentals and Order Flow [PDF]
Quarterly Journal of Finance, 2007 We address whether transaction flows in foreign exchange markets convey fundamental information. Our General Equilibrium model includes fundamental information that first manifests at the micro level and is not symmetrically observed by all agents.
Martin D.D. Evans, Richard K. Lyons
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Order Flow and Exchange Rate Dynamics [PDF]
Journal of Political Economy, 2017 Macroeconomic models of nominal exchange rates perform poorly. The propor-tion of monthly exchange rate changes that these models can explain is essen-tially zero. This paper presents a model of a new kind. Instead of relying exclu-sively on macroeconomic determinants, the model includes a determinant from the field of microstructure?order flow.
Martin D.D. Evans, Richard K. Lyons
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Order flows and the exchange rate disconnect puzzle [PDF]
Journal of International Economics, 2009 Abstract The aim of this paper is to establish the link between the high frequency dynamics of spot exchange rates and developments in the macroeconomy. To do so, I first present a theoretical model of exchange-rate determination that bridges the gap between existing microstructure and traditional models.
Martin D.D. Evans
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Higher order exchange driven noncoplanar magnetic state and large anomalous Hall effects in electron doped kagome magnet Mn3Sn [PDF]
npj Quantum Materials, 2022 Owing to geometrical frustration in the kagome lattice, Mn3Sn displays a 120° in-plane triangular antiferromagnetic order, a manifestation of exchange interaction within the Heisenberg model.
Charanpreet Singh +6 more
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On the Order of Isotopic Exchange Reactions [PDF]
Bulletin of the Chemical Society of Japan, 1969 Abstract The conditions for the applicability of the McKay law were studied. It was concluded that the first order kinetics no longer holds when the concentrations of intermediates cannot be disregarded when compared with those of reactants and products and when the rate determining step cannot be specified.
Tetsuo Takaishi
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Magnetic Order in the Double Exchange Model in Infinite Dimensions [PDF]
, 2000 We studied magnetic properties of the double exchange (DE) model with S=1/2 localized spins at T=0, using exact diagonalization in the framework of the dynamical mean field theory.
Kentaro Nagai, Tsutomu Momoi, Kenn Kubo
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Chiral
, 2002 We calculate the impact of the complete set of two-pion exchange contributions at chiral order four (also known as next-to-next-to-next-to-leading order, N3LO) on peripheral partial waves of nucleon-nucleon scattering. Our calculations are based upon the
D. R. Entem, R. Machleidt
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An ordering inequality for exchangeable random variables [PDF]
Advances in Applied Probability, 1986 Let X1, · ··, Xn be exchangeable random variables with finite variance and two sequences of constants satisfying a1≦···≦an, b1≦···≦bn. Suppose that a′1, ···, a′n is a rearrangement of a1, ···, an and that g(x) is a non-decreasing function. Then
G. S. Watson
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Orbital ordering and exchange interaction in the manganites [PDF]
Physical Review B, 2001 The microscopic origin of the exchange interaction in manganites is studied by solving an electronic model Hamiltonian for the Mn-O-Mn triad. It is shown that the magnetic structure of ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Ca}}_{x}{\mathrm{MnO}}_{3}$ is correctly described within an electronic Hamiltonian model, provided that the appropriate ...
Hakim Meskine +2 more
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