Study of Spin Dynamics in Iron with Slow Neutrons

M. F. Collins; V. J. Minkiewicz; R. Nathans; L. Passell; G. Shirane

doi:10.1063/1.1657708

Study of Spin Dynamics in Iron with Slow Neutrons

Journal of Applied Physics ◽

10.1063/1.1657708 ◽

1969 ◽

Vol 40 (3) ◽

pp. 1442-1442 ◽

Cited By ~ 1

Author(s):

M. F. Collins ◽

V. J. Minkiewicz ◽

R. Nathans ◽

L. Passell ◽

G. Shirane

Keyword(s):

Spin Dynamics ◽

Slow Neutrons

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Magnon scattering of slow neutrons on a pyrrhotite single crystal

Journal de Physique ◽

10.1051/jphys:01964002505062700 ◽

1964 ◽

Vol 25 (5) ◽

pp. 627-634 ◽

Cited By ~ 13

Author(s):

Adam Wanic

Keyword(s):

Single Crystal ◽

Slow Neutrons

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Statistical study of spin dynamics in precessing binary black holes in eccentric orbits

The multi-messenger astronomy: gamma-ray bursts, search for electromagnetic counterparts to neutrino events and gravitational waves. Proceedings of the International Conference. ◽

10.26119/sao.2019.1.35514 ◽

2019 ◽

Author(s):

Pankaj Jain ◽

Khun Sang Phukon ◽

Anuradha Gupta ◽

Sukanta Bose

Keyword(s):

Black Holes ◽

Statistical Study ◽

Spin Dynamics ◽

Binary Black Holes ◽

Eccentric Orbits

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Ultrafast Spectroscopy of Carrier and Spin Dynamics in Hybrid Perovskites

10.29363/nanoge.ngfm.2019.055 ◽

2019 ◽

Author(s):

Felix Deschler

Keyword(s):

Ultrafast Spectroscopy ◽

Spin Dynamics

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The Damping Term, from First Principles

10.1093/oso/9780198788669.003.0006 ◽

2017 ◽

Author(s):

Olle Eriksson ◽

Anders Bergman ◽

Lars Bergqvist ◽

Johan Hellsvik

Keyword(s):

Density Functional Theory ◽

First Principles ◽

Density Functional ◽

Spin Dynamics ◽

Damping Term ◽

Functional Theory ◽

Basic Principles ◽

Sham Equation ◽

Damping Parameter ◽

Simulation Cell

In the previous chapters we described the basic principles of density functional theory, gave examples of how accurate it is to describe static magnetic properties in general, and derived from this basis the master equation for atomistic spin-dynamics; the SLL (or SLLG) equation. However, one term was not described in these chapters, namely the damping parameter. This parameter is a crucial one in the SLL (or SLLG) equation, since it allows for energy and angular momentum to dissipate from the simulation cell. The damping parameter can be evaluated from density functional theory, and the Kohn-Sham equation, and it is possible to determine its value experimentally. This chapter covers in detail the theoretical aspects of how to calculate theoretically the damping parameter. Chapter 8 is focused, among other things, on the experimental detection of the damping, using ferromagnetic resonance.

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Strong Coupling of Electron and Nuclear Spins: Outlook and Prospects

10.1093/oso/9780198807308.003.0011 ◽

2018 ◽

Author(s):

M. M. Glazov

Keyword(s):

Energy Spectrum ◽

Charge Carrier ◽

Strong Coupling ◽

Nuclear Spin ◽

Spin Dynamics ◽

Spin Polaron ◽

Nuclear Spins ◽

Deep Impurity ◽

Impurity Centers ◽

Ordered State

In this chapter, some prospects in the field of electron and nuclear spin dynamics are outlined. Particular emphasis is put ona situation where the hyperfine interaction is so strong that it leads to a qualitative rearrangement of the energy spectrum resulting in the coherent excitation transfer between the electron and nucleus. The strong coupling between the spin of the charge carrier and of the nucleus is realized, for example in the case of deep impurity centers in semiconductors or in isotopically purified systems. We also discuss the effect of the nuclear spin polaron, that is ordered state, formation at low enough temperatures of nuclear spins, where the orientation of the carrier spin results in alignment of the spins of nucleus interacting with the electron or hole.

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Electron Spin Decoherence by Nuclei

10.1093/oso/9780198807308.003.0007 ◽

2018 ◽

Author(s):

M. M. Glazov

Keyword(s):

Electron Spin ◽

Spin Dynamics ◽

Magnetic Moments ◽

Host Lattice ◽

Spin Model ◽

Relaxation Processes ◽

Nuclear Spins ◽

Model Calculations ◽

Spin Decoherence ◽

Quantum Mechanical Approach

The discussion of the electron spin decoherence and relaxation phenomena via the hyperfine interaction with host lattice spins is presented here. The spin relaxation processes processes limit the conservation time of spin states as well as the response time of the spin system to external perturbations. The central spin model, where the spin of charge carrier interacts with the bath of nuclear spins, is formulated. We also present different methods to calculate the spin dynamics within this model. Simple but physically transparent semiclassical treatment where the nuclear spins are considered as largely static classical magnetic moments is followed by more advanced quantum mechanical approach where the feedback of electron spin dynamics on the nuclei is taken into account. The chapter concludes with an overview of experimental data and its comparison with model calculations.

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