The role of interface phonons in the formation of polaron states in quantum wells

Maslov, A. Yu.; Proshina, O. V.

doi:10.1134/s1063782610020090

Cited by 5 publications

(6 citation statements)

References 9 publications

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“…The electron-phonon interaction parameters α (r, n) from Eq. (6) are given in [11,13]. For further discussion, we will use an explicit form of these coefficients for the symmetric interface mode and an even part of the interaction with the localized phonons of the quantum well.…”

Section: Symmetric Quantum Wellmentioning

confidence: 99%

“…(8) as a functional of the wave function χ n ( r ∥ ) for the quantum well case. It can be defined from the condition of minimum for this functional [13]:…”

Section: Symmetric Quantum Wellmentioning

confidence: 99%

“…where C 2 = 0.07 is the numerical factor that was calculated in [3]. The dimensionless coefficients D V and D S are determined by fairly complex combinations of the phonon frequencies in the quantum well and barrier materials and are found in [13]. It turns out that the corrections to the binding energy of a polaron are related to the interaction with both bulk and interface phonons.…”

Section: Symmetric Quantum Wellmentioning

confidence: 99%

See 2 more Smart Citations

Interface Phonons and Polaron States in Quantum Nanostructures

Maslov¹,

Proshina²

2018

Phonons in Low Dimensional Structures

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The interface optical phonons arise near the hetero-interface of a quantum nanostructure. Moreover, its spectrum and dispersion laws may differ from ones for excitations arising in the bulk materials. The study of such excitations can give fundamentally new information about the optical and transport properties of nanostructures. The interaction of charged particles with polar optical phonons can lead to the large radius polaron creation in the materials with high ionicity. This chapter deals with the results of our theoretical investigations of the polaron states in quantum wells, quantum wires, and quantum dots. The charged particle and exciton interaction with both bulk and interface optical phonons are taken into account. The original method has been developed taking into consideration an interface phonon influence. The enhancement conditions are found for both strong and weak interactions. It is established that the barrier material dielectric properties give a decisive contribution to the polaron binding energy value for strong electron-phonon interaction. The manifestation of strong polaron effects is a pronounced demonstration of the interface optical phonon influence on optical and transport properties of nanostructures.

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Section: Symmetric Quantum Wellmentioning

confidence: 99%

“…(8) as a functional of the wave function χ n ( r ∥ ) for the quantum well case. It can be defined from the condition of minimum for this functional [13]:…”

Section: Symmetric Quantum Wellmentioning

confidence: 99%

Section: Symmetric Quantum Wellmentioning

confidence: 99%

See 1 more Smart Citation

Interface Phonons and Polaron States in Quantum Nanostructures

Maslov¹,

Proshina²

2018

Phonons in Low Dimensional Structures

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“…The procedure of polaron binding energy determination is similar to that used in [ 7 ]. We average the total Hamiltonian of the system from expression (Eq.…”

Section: The Polaron In the Quantum Wirementioning

confidence: 99%

“…It does not lead to new qualitative effects. Alternatively, the interface phonon role dominates in polaron binding energy for quantum well case [ 6 , 7 ]. In response to this fact, the strong electron–phonon interaction can be realized in the quantum wells based on non-polar material with high iconicity barrier material.…”

Section: Introductionmentioning

confidence: 99%

Interface Phonons and Polaron Effect in Quantum Wires

Maslov

Proshina

2010

Nanoscale Res Lett

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The theory of large radius polaron in the quantum wire is developed. The interaction of charge particles with interface optical phonons as well as with optical phonons localized in the quantum wire is taken into account. The interface phonon contribution is shown to be dominant for narrow quantum wires. The wave functions and polaron binding energy are found. It is determined that polaron binding energy depends on the electron mass inside the wire and on the polarization properties of the barrier material.

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