scholarly journals Photoemission spectrum of Ca2RuO4 : Spin polaron physics in an S=1 antiferromagnet with anisotropies

2020 ◽  
Vol 101 (3) ◽  
Author(s):  
Adam Kłosiński ◽  
Dmitri V. Efremov ◽  
Jeroen van den Brink ◽  
Krzysztof Wohlfeld
Keyword(s):  
Photoemission Spectrum ◽  
Spin Polaron

The spin-polaron concept in the theory of normal and superconducting states of cuprate

2020 ◽  
Author(s):  
Valerii V. Val'kov ◽  
Dmitrii M. Dzebisashvili ◽  
Maksim M. Korovushkin ◽  
Aleksandr F. Barabanov
Keyword(s):  
Spin Polaron

Strong Coupling of Electron and Nuclear Spins: Outlook and Prospects

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.

SO(5) SYMMETRY AND SINGLE PARTICLE SPECTRA

1999 ◽  
Vol 13 (24n25) ◽  
pp. 3039-3047
Author(s):  
M. G. ZACHER ◽  
A. DORNEICH ◽  
R. EDER ◽  
W. HANKE ◽  
S. C. ZHANG
Keyword(s):  
Spectral Function ◽  
Single Particle ◽  
Photoemission Spectrum ◽  
Two Dimensional ◽  
Ladder Model ◽  
Particle Spectra ◽  
Key Features

We discuss properties of a recently proposed SO(5) symmetric ladder model. Key features of the single particle spectral function that are emerging from the symmetry are numerically identified in the ladder model and in the photoemission spectrum of the two-dimensional t–J model.

Time dynamics of spins-fermional models in Cu2O

2021 ◽  
pp. 110-113
Author(s):  
V.S. Kirchanov ◽  
Keyword(s):  
System Of Equations ◽  
Spin Polaron ◽  
Harmonic Oscillations ◽  
Fermion Model ◽  
Time Dynamics ◽  
Coupling Operator ◽  
Frequency Harmonic

The solution of the system of equations for the basic operators of the spin-fermion model is obtained in the form of harmonic oscillations of Fermi operators at two frequencies, and three-frequency harmonic oscillations of the spin-fermion coupling operator (spin-polaron).

Detailed peak fitting analysis of the Zn 2p photoemission spectrum for metallic films and its initial oxidation stages

2017 ◽  
Vol 49 (11) ◽  
pp. 1078-1087 ◽  
Author(s):  
D. Cabrera-German ◽  
G. Molar-Velázquez ◽  
G. Gómez-Sosa ◽  
W. de la Cruz ◽  
A. Herrera-Gomez
Keyword(s):  
Photoemission Spectrum ◽  
Metallic Films ◽  
Initial Oxidation ◽  
Peak Fitting
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