Scattering of Alpha Particles

Eisberg, R. M.; Porter, Charles E.

doi:10.1103/revmodphys.33.190

Cited by 92 publications

(21 citation statements)

References 49 publications

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“…This quasi-universality is most pronounced for the LJ potential, but is also well developed for the Yukawa and exponential potentials. Such a quasi-universal behavior is probably not very surprising in the vicinity of ρ * , where the scattering angle is known to exhibit logarithmic divergence [23], but is more surprising away from this point.…”

Section: Resultsmentioning

confidence: 93%

Classical scattering in strongly attractive potentials

Khrapak

2014

Phys. Rev. E

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Scattering in central attractive potentials is investigated systematically, in the limit of strong interaction, when large-angles scattering dominates. In particular, three important model interactions (Lennard-Jones, Yukawa, and exponential), which are qualitatively different from each other, are studied in detail. It is shown that for each of these interactions the dependence of the scattering angle on the properly normalized impact parameter exhibits a quasi-universal behavior. This implies simple scaling of the transport cross sections with energy in the considered limit. Accurate fits for the momentum transfer cross section are suggested. Applications of the obtained results are discussed.

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Section: Resultsmentioning

confidence: 93%

Classical scattering in strongly attractive potentials

Khrapak

2014

Phys. Rev. E

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“…SOC is a relativistic effect of a particle's spin with its motion in an electric field. In atomic energy levels, the SOC can split degenerate states with finite angular momentum (p, d, and f), and the contribution to the Hamiltonian can be expressed as [23] E SO = Z 4 2(137) 2 a 3 0 n 3 j ( j + 1) − l (l + 1) − s (s + 1) 2l (l + 1/2)(l + 1)…”

Section: Spin-orbit Coupling In Materialsmentioning

confidence: 99%

Manipulation of Magnetization by Spin–Orbit Torque

Edmonds

Liu

et al. 2018

Adv Quantum Tech

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The control of magnetization by electric current is a rapidly developing area motivated by a strong synergy between breakthrough basic research discoveries and industrial applications in the fields of magnetic recording, magnetic field sensors, spintronics, and nonvolatile memories. In recent years, the discovery of spin–orbit torque has opened a spectrum of opportunities to manipulate the magnetization efficiently. This article presents a review of the historical background and recent literature focusing on spin–orbit torques (SOTs), highlighting the most exciting new scientific results and suggesting promising future research directions. It starts with an introduction and overview of the underlying physics of spin–orbit coupling effects in bulk and at interfaces, and then describes the use of SOTs to control ferromagnets and antiferromagnets. Finally, the prospects for the future development of spintronic devices based on SOTs are summarized.

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“…We note the logarithmic divergence as %-->0. A logarithmic divergence was also found for the orbital spiralling already referred to [4,5]. For small differences in initial phase from qi e we can therefore take % to be linear in qi-qi e %=,l(qi-qie)=,ly.…”

Section: Motion Of the Representative Point Through A Saddle Point Hamentioning

confidence: 86%

“…A situation which has some features in common with our problem is the occurrence of shape resonances associated with orbital spiralling in central field scattering [4,5]. We will point out later in the paper some mathematical similarity between the two systems.…”

Section: Introductionmentioning

confidence: 94%

The behaviour of long-lived classical trajectories through saddle points and their contribution to the semi-classicalS-matrix

Fraser

Murrell

1976

Molecular Physics

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The properties of long-lived classical trajectories on two-dimensional repulsive surfaces with a saddle point have been investigated using two model potentials. In the first the motion in the region of the saddle point is separable in the two coordinates (one internal and one reaction coordinate), and an analytic form is given for the transition probability contributions from trajectories which exhibit many oscillations at the saddle point. The second potential includes a quartic coupling term between the two degrees of freedom, and this potential is shown to simulate the properties of a surface studied by Marcus and Stine. Their method of summing contributions of long-lived trajectories to the S-matrix is discussed.

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Scattering of Alpha Particles

Cited by 92 publications

References 49 publications

Classical scattering in strongly attractive potentials

Classical scattering in strongly attractive potentials

Manipulation of Magnetization by Spin–Orbit Torque

The behaviour of long-lived classical trajectories through saddle points and their contribution to the semi-classicalS-matrix

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