scholarly journals Unified spin model for magnetic excitations in iron chalcogenides

2017 ◽  
Vol 96 (17) ◽  
Author(s):  
Patricia Bilbao Ergueta ◽  
Wen-Jun Hu ◽  
Andriy H. Nevidomskyy
Keyword(s):  
Spin Model ◽  
Magnetic Excitations ◽  
Iron Chalcogenides

MAGNETIC EXCITATIONS AND SPECIFIC HEAT FOR INTERMETALLIC COMPOUNDS INVOLVING THULIUM

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-375-C8-376
Author(s):  
C. D. Wentworth ◽  
A. f. Deutz ◽  
H. B. Brom
Keyword(s):  
Specific Heat ◽  
Intermetallic Compounds ◽  
Magnetic Excitations

Electron Spin Decoherence by Nuclei

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.

Magnetoelastic coupling, negative thermal expansion, and two-dimensional magnetic excitations in FeAs

2021 ◽  
Vol 103 (9) ◽  
Author(s):  
J. L. Niedziela ◽  
L. D. Sanjeewa ◽  
A. A. Podlesnyak ◽  
L. DeBeer-Schmitt ◽  
S. J. Kuhn ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Negative Thermal Expansion ◽  
Two Dimensional ◽  
Magnetic Excitations ◽  
Magnetoelastic Coupling
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