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effective mass (band structure)

Influence of Modal Effective Mass Distribution on the Static and Dynamic Behavior of A Satellite Structure Under Base Excitations

Influence of Modal Effective Mass Distribution on the Static and Dynamic Behavior of A Satellite Structure Under Base Excitations

... Effective mass is a dynamic property of a structure associated with the modal characteristics; natural frequencies and mode ...a structure is accelerated via its base. Additionally, a ...

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Definition of local completeness criteria of a modal basis - concept of local effective mass

Definition of local completeness criteria of a modal basis - concept of local effective mass

... a structure, the global effective mass criterion is no longer ...complex structure constituted of multiple sub-structures with masses different by orders of magnitude ...

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Two-body contributions to the effective mass in nuclear effective interactions

Two-body contributions to the effective mass in nuclear effective interactions

... For both zero- and finite-range interactions, it is possi- ble to derive simple expressions for these SNM properties as functions of the interaction parameters. By combining these functions in an appropriate way, we can ...

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Excitons with anisotropic effective mass

Excitons with anisotropic effective mass

... the effective mass is treated ad- equately, other important features such as the mixing of states at the threefold degenerate valence band max- imum or the spatial variation of the dielectric ...

5

The Temperature Dependence of the Density of States in Semiconductors

The Temperature Dependence of the Density of States in Semiconductors

... conduction band, valence band reduces band ...conduction band and valence band is sharp and has a stepped ...the effective mass of the density of states does not depend on ...

5

Exciton-polariton gap solitons in two-dimensional lattices

Exciton-polariton gap solitons in two-dimensional lattices

... negative mass and energy above the ground state ...negative effective mass M states of the lattice band structure, its energy lies within the band gap and its wave function is ...

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Electron Density Response to Phonon Dynamics in MgB2: An Indicator of Superconducting Properties

Electron Density Response to Phonon Dynamics in MgB2: An Indicator of Superconducting Properties

... σ band structure associated with the light effective mass became tangential to the Fermi level and that the Fer- mi surface undergoes a topological transition at a critical relative displace- ...

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Effects of Band Nonparabolicity and Band Offset on the Electron Gas Properties in InAs/AlSb Quantum Well

Effects of Band Nonparabolicity and Band Offset on the Electron Gas Properties in InAs/AlSb Quantum Well

... One-band effective mass model is used to simulation of electron gas properties in quantum ...energy, effective mass at Fermi level as function of electron concen- tration are ...

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Band alignment and scattering considerations for enhancing the thermoelectric power factor of complex materials : the case of Co based half Heusler alloys

Band alignment and scattering considerations for enhancing the thermoelectric power factor of complex materials : the case of Co based half Heusler alloys

... high band and valley degeneracy through aligning of conducting electronic bands is an effective strategy to improve the thermoelectric performance of complex bandstructure ...through band engineering ...

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Theoretical Comparison of Band Spectra of Different Crystal Orientation of Ge and Si Nanowires

Theoretical Comparison of Band Spectra of Different Crystal Orientation of Ge and Si Nanowires

... The effective mass, no of valleys and energy of rectangular Si and Ge – nanowires are given in table ...nanowir.e. Effective masses are also greater in Gi nanowires than Si expect in two cases of ...

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Ab Initio Study of Structural and Electronic Properties of Barium Chalcogenide Alloys

Ab Initio Study of Structural and Electronic Properties of Barium Chalcogenide Alloys

... using full-potential muffin-tin orbital’s (FP-LMTO) method within density functional theory (DFT). In this approach, the local-density approximation (LDA) and generalized gradient approximation (GGA) are used for the ...

7

Rashba spin splitting and terahertz quantum Hall effect for heavy holes in strained germanium quantum wells

Rashba spin splitting and terahertz quantum Hall effect for heavy holes in strained germanium quantum wells

... This thesis presents a thorough characterisation - by means of THz-TD magneto-spectroscopy (THz-TDMS) and polarisation resolved (PR)-THz-TDMS - of high mobility 2DHGs in 0.8% and 1.3% compressively strained germanium ...

153

Electronic Properties of Epitaxial Graphene: A First Principles Study.

Electronic Properties of Epitaxial Graphene: A First Principles Study.

... model is not realistic for us to complete. Therefore we use the well-known √3 × √3 model where the electronic properties of graphene are preserved. Even in this simplified mode where atoms number is greatly reduced, it ...

123

Ab Initio Computations of Electronic, Transport, and Related Properties of Chromium Disilicide (CrSi2)

Ab Initio Computations of Electronic, Transport, and Related Properties of Chromium Disilicide (CrSi2)

... tions utilized the Ceperley and Alder local density approximation (LDA) po- tential and the linear combination of atomic orbitals (LCAO) formalism. As required by the second DFT theorem, our calculations minimized the ...

16

A Novel Multi-Band Electromagnetic Band-Gap Structure

A Novel Multi-Band Electromagnetic Band-Gap Structure

... EBG structure, we make four slots at the diagonal line of Sievenpiper cell and the Sievenpiper structure is changed into four trapezoids and a conjoint small ...the structure is shown in Figure ...

8

High Pressure Band Structure, Density of States, Structural Phase Transition and Metallization in CdS

High Pressure Band Structure, Density of States, Structural Phase Transition and Metallization in CdS

... high pressure studies due to the development of different designs of diamond anvil cell (DAC). With a modern DAC, it is possible to reach pressures of 2 Mbar (200 GPa) routinely and pressures of 5 Mbar (500 GPa) or ...

6

Theoretical Investigation of Transmission and Dispersion Properties of One Dimensional Photonic Crystal

Theoretical Investigation of Transmission and Dispersion Properties of One Dimensional Photonic Crystal

... In summary, we have used the transfer matrix method and Bloch theorem to study one-dimensional photonic crystals. We have discussed the calculation of transmissivity, reflectivity, and dispersion relation for both TE and ...

7

Enhancement of Electromagnetic Force by Localized Fields in One-Dimensional Photonic Crystal

Enhancement of Electromagnetic Force by Localized Fields in One-Dimensional Photonic Crystal

... the structure, but also to squeeze the ...the band gap, electromagnetic wave pushes the whole structure, but at the defect mode frequency, this force is to divide the structure into two parts, ...

12

Pressure Induced Structural Phase Transition, Metallization and Superconductivity in KI

Pressure Induced Structural Phase Transition, Metallization and Superconductivity in KI

... self-consistent band structure calculation for potassium iodide (KI) performed both in NaCl and CsCl structures using the full potential linear muffin-tin orbital (FP-LMTO) method is ...The band ...

10

Pressure Induced Structural Phase Transition, Metallization and Superconductivity in SodiumIodide (NaI)

Pressure Induced Structural Phase Transition, Metallization and Superconductivity in SodiumIodide (NaI)

... perform band structure calculations of his ...electronic structure involves the computation of eigen states for an infinite number of interacting ...

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