Density of Electron States and Relaxation Time of Intercalated Layer Crystals

• Authors: N. Tovstyuk , Ye. Sheregiy
• Languages of publication: EN

Abstracts

EN

The density of electron states of layered crystal intercalated by guests of different nature is calculated within the framework of virtual crystal considering filling of both octahedral and tetrahedral interstitial hollows. It is found that the shift of the gap of density of states is caused firstly by the nature of intercalant (placing of ground energy states of both intercalants) and their average concentrations. In the case when one type of intercalant gives localized level in the forbidden gap and another intercalant forms the resonance one in the conductive band the gap disappears. Relaxation time corresponding to the transitions from one to another band is calculated.

Keywords

EN

71.20.-b; 71.55.-i; 77.22.Gm

Discipline

• 71.20.-b: Electron density of states and band structure of crystalline solids
• 77.22.Gm: Dielectric loss and relaxation
• 71.55.-i: Impurity and defect levels

• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 2
• Pages: 225-227

Dates

published

2015-08

Contributors

author

N. Tovstyuk

• National University "Lvivska Politechnika", 13, Bandera Str., L'viv, 79013, Ukraine

author

Ye. Sheregiy

• University of Rzeszów, Centre for Microelectronics and Nanotechnology, S. Pigonia 1, 35-959 Rzeszów, Poland

References

• [1] M. Elhabiri, A.-M. Abrecht-Gary, Coord. Chem. Rev. 252, 1079 (2008), doi: 10.1016/j.ccr.2007.019.014
• [2] B.P. Zakharchenya, Phys.-Usp. 175, 625 (2005), doi: 10.3367/UFNr.0175.200506d.0629
• [3] I.V. Stasyuk, Yu.I. Dublenych, Phys. Rev. B 72, 224209 (2005), doi: 10.1103/PhysRevB.72.224209
• [4] N.K. Tovstyuk, Visnyk Lviv Univ. Ser. Phys. 48, 109 (2013)

Identifiers

DOI

10.12693/APhysPolA.128.224