Energy Spectrum and the Critical Wavefunctions of the Quasiperiodic Harper Equation –the Silver Mean Case–

1994 ◽  
Vol 63 (6) ◽  
pp. 2261-2268 ◽  
Author(s):  
Kazuhiro Ikezawa ◽  
Mahito Kohmoto
Keyword(s):  
Energy Spectrum ◽  
Silver Mean ◽  
Harper Equation

The Derivation of 1/N Energy-Solutions to the harper-Equation and Related Magnetizations

1998 ◽  
Vol 12 (18) ◽  
pp. 1847-1870 ◽  
Author(s):  
C. Micu ◽  
E. Papp
Keyword(s):  
Energy Spectrum ◽  
Fermi Level ◽  
Quantum Gas ◽  
One Dimensional ◽  
Implicit Form ◽  
Field Independent ◽  
The One ◽  
First Time ◽  
Harper Equation

Proofs are given for the first time that the energy-spectrum of the Harper-equation can be derived in a closed implicit form by using the one-dimensional limit of the 1/N-description. Explicitly solvable cases are discussed in some more detail for Δ=1. Here Δ expresses the Harper-parameter discriminating between metallic (Δ<1) and insulator (Δ>1) phases. Related magnetizations have been established by applying both Dingle- and quantum-gas approaches, now for a fixed value of the Fermi-level. The first description leads to large paramagnetic-like magnetizations oscillating with nearly field-independent amplitudes increasing with the temperature. In the second case one deals with magnetization-oscillations centered around the zero-value, such that the amplitudes decrease both with the field and the temperature.

The electronic energy spectrum of zero-gap semiconductors

1976 ◽  
Vol 120 (11) ◽  
pp. 337 ◽  
Author(s):  
B.L. Gel'mont ◽  
V.I. Ivanov-Omskii ◽  
I.M. Tsidil'kovskii
Keyword(s):  
Energy Spectrum ◽  
Electronic Energy ◽  
Electronic Energy Spectrum

Acquisition and Evaluation of Gamma-ray Energy Spectrum with CsPbBr3

2019 ◽  
Author(s):  
Lei R. Cao ◽  
Lei Pan ◽  
Yuanxiang Feng ◽  
Praneeth Kandlakunta ◽  
Jinsong Huang
Keyword(s):  
Energy Spectrum ◽  
Gamma Ray

Energy Spectrum of Acoustic Emission Signals in Coupled Continuous Media

2019 ◽  
Vol 11 (3) ◽  
pp. 03028-1-03028-7 ◽  
Author(s):  
V. V. Marasanov ◽  
◽  
A. V. Sharko ◽  
A. A. Sharko ◽  
◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Energy Spectrum ◽  
Continuous Media

Peculiarities of Stark-phonon Resonance in Two-dimensional Superlattices with Non-additive Energy Spectrum

2016 ◽  
Vol 8 (1) ◽  
pp. 01019-1-01019-3
Author(s):  
D. V. Zav’yalov ◽  
◽  
S. V. Kruchkov ◽  
E. S. Ionkina ◽  
◽  
...  
Keyword(s):  
Energy Spectrum ◽  
Two Dimensional ◽  
Additive Energy

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.

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