Fermi energy and optical conductivity of metal quantum wires

Kurbatsky, V. P.; Korotun, A. V.; Babich, А. V.; Погосов, В. В.

doi:10.1134/s1063783409120154

Cited by 8 publications

(5 citation statements)

References 13 publications

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“…The second term in parentheses determines a correction to the spectrum caused by the periodic modulation of the wire surface. The size dependence of the Fermi energy is determined by the relation [18] = 2…”

Section: Formulation Of the Problem And Basic Relationsmentioning

confidence: 99%

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Energy Characteristics of Metal Nanowires with Periodically Modulated Surface

Korotun¹,

Karandas²

2019

Ukr. J. Phys.

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The energy spectrum of electrons in a metal nanowire with a periodically modulated surface has been found in the framework of perturbation theory. To solve the problem, a transition is made into a coordinate system that “smoothes down” the surface oscillations. The influence of the surface modulation amplitude on size-induced oscillations of the Fermi energy in such systems is analyzed. It is shown that an increase of the modulation amplitude leads to a decrease of the Fermi energy in the wire. Specific calculations were made for Au, Cu, and Al wires.

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Section: Formulation Of the Problem And Basic Relationsmentioning

confidence: 99%

“…One of the most important parameters of this subsystem is the Fermi energy. Its dependence on the specimen sizes is responsible for the oscillations of such optical characteristics of nanostructures as the optical conductivity, dielectric function, and absorption coefficient [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Energy Characteristics of Metal Nanowires with Periodically Modulated Surface

Korotun¹,

Karandas²

2019

Ukr. J. Phys.

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“…3 i 5). Зi зростанням хiральностi m, а, вiдповiдно, i радiуса ВНТ R, пiки змiщуються лiворуч, причому, за аналогiєю з випадком суцiльного металевого нанодроту [21], змiщення дорiвнюють ∆ω = ω − ω = ω R 2 /R 2 − 1 = ω m 2 /m 2 − 1 . Це означає, що бiльш вiддаленi пiки з бiльшим значенням ω змiщуються сильнiше вiд ближнiх i iнтервал частот, який вони займають, звужується.…”

Section: результати розрахункIв та їх обговоренняunclassified

Size and frequency dependences of the surface optical conductivity of single-wall carbon nanotubes with metallic properties

Korotun¹,

Karandas²,

Titov³

et al. 2019

J. Phys. Stud.

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В одноелектронному наближеннi дослiджено розмiрнi й частотнi залежностi дiйсної та уявної частин поверхневої провiдностi одностiнних вуглецевих нанотрубок zigzag-та armchairконфiґурацiй. Одержано загальнi формули для внутрiшньозонної та мiжзонної провiдностi ахiральних нанотрубок указаних конфiґурацiй. Проведено порiвняння результатiв розрахункiв поверхневої провiдностi вуглецевих нанотрубок рiзних конфiґурацiй i рiзних хiральностей. Обговорено особливостi розмiрних залежностей дiйсної та уявної частин поверхневої провiдностi.Ключовi слова: одностiннi вуглецевi нанотрубки, поверхнева оптична провiднiсть, ахiральнi нанотрубки, внутрiшньозонна провiднiсть, мiжзонна провiднiсть, плоска електромагнiтна хвиля, розмiрна залежнiсть.

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“…To calculate the dielectric tensor diagonal components, we use the expressions for the matrix elements of the projections of the momentum operator obtained in [9] ,;…”

Section: Basic Relationsmentioning

confidence: 99%

“…A characteristic feature of these systems is the anisotropy of their optical properties due to the size quantization effects. In connection with this, such quantities as the optical conductivity or the dielectric function acquire a tensor character [9,10].…”

Section: Introductionmentioning

confidence: 99%

The Dielectric Function of Metal 1D-systems

Korotun¹,

Kurbatsky²,

Погосов³

2016

J. Nano- Electron. Phys.

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The dielectric tensor diagonal components for metal nanowires of different metals have been calculated within the model of free electrons and a cylindrical potential well. The smooth size dependence of the Fermi energy has been compared with the results of the numerical calculations. The influence of the system dimensionality on the frequency dependence of the dielectric tensor has been investigated.

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Fermi energy and optical conductivity of metal quantum wires

Cited by 8 publications

References 13 publications

Energy Characteristics of Metal Nanowires with Periodically Modulated Surface

Energy Characteristics of Metal Nanowires with Periodically Modulated Surface

Size and frequency dependences of the surface optical conductivity of single-wall carbon nanotubes with metallic properties

The Dielectric Function of Metal 1D-systems

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