World Journal of Engineering Research and Technology (WJERT) has indexed with various reputed international bodies like : Google Scholar , Index Copernicus , Indian Science Publications , SOCOLAR, China , International Institute of Organized Research (I2OR) , Cosmos Impact Factor , Research Bible, Fuchu, Tokyo. JAPAN , Scientific Indexing Services (SIS) , Jour Informatics (Under Process) , UDLedge Science Citation Index , International Impact Factor Services , International Scientific Indexing, UAE , International Society for Research Activity (ISRA) Journal Impact Factor (JIF) , International Innovative Journal Impact Factor (IIJIF) , Science Library Index, Dubai, United Arab Emirates , Scientific Journal Impact Factor (SJIF) , Science Library Index, Dubai, United Arab Emirates , Eurasian Scientific Journal Index (ESJI) , Global Impact Factor (0.342) , IFSIJ Measure of Journal Quality , Web of Science Group (Under Process) , Directory of Research Journals Indexing , Scholar Article Journal Index (SAJI) , International Scientific Indexing ( ISI ) , Scope Database , Academia , Research Publication Rating and Indexing , 

World Journal of Engineering Research and Technology

( An ISO 9001:2015 Certified International Journal )

An International Peer Reviewed Journal for Engineering Research and Technology

An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)

ISSN 2454-695X

Impact Factor : 7.029

ICV : 79.45

News & Updation

  • Article Invited for Publication

    Article are invited for publication in WJERT Coming Issue

  • ICV

    WJERT Rank with Index Copernicus Value 79.45 due to high reputation at International Level

  • WJERT: JANUARY ISSUE PUBLISHED

    JANUARY 2025 Issue has been successfully launched on 1 JANUARY 2025.

  • New Issue Published

    Its Our pleasure to inform you that, WJERT January 2025 Issue has been Published, Kindly check it on https://www.wjert.org/home/current_issues

  • WJERT New Impact Factor

    WJERT Impact Factor has been Increased to 7.029 for Year 2024.

Indexing

  Indexing

Abstract

NEW CRITICAL DENSITY IN METAL-INSULATOR TRANSITION, OBTAINED IN n(p)-TYPE DEGENERATE, Si(1-x)Ge(x)-CRYSTALLINE ALLOY, AND ITS APPLICATIONS. (V)

Prof. Dr. Huynh Van Cong*

ABSTRACT

In n(p)-type degenerate X(x)crystalline alloy by basing on the same physical model and treatment method, as used in our recent works.[1,2] we will investigate (1)-the critical impurity densities in the Mott metal-insulator transition (Mott-MIT), , determined in Eq. (8), and the origin of this Mott’s criterium, Eq. (8), being investigated in Eq. (9b), (2)-the density of electrons (holes) localized in the exponential conduction (valence)-band tails (EBT), , given in Eq. (26), giving rise to: with a precision of the order of , as observed in Tables 1n and 1p, which could beconcluded that is also the density of electrons (holes) localized in the EBT, and (3)-the optical band gap,, determined in Eq. (28), , showing that the numerical results of are in good agreement with experimental ones, obtained by Wagner and del Alamo (1988), with maximal relative deviations: 5.38 % (9.07 %), and 2.06 % (5.16 %), as observed in Tables 2n and 2p; further, for x(=0, 0.5, 1), the numerical results of are given in Tables 3n and 3p.

[Full Text Article] [Download Certificate]