Formation of photoelectron spectra of alloys niobium-molybdenum-zirconium

Yokub Ergashov,Jakhongir Normuminov,Sherzod Khudainazarov,Burkhon Donaev,D Bazarov

doi:10.1051/e3sconf/202126405036

Abstract

Crystals of niobium and its alloys obtained by low-energy implantation of molybdenum and zirconium ions were studied in a multi-functional installation. The energy distribution curves of N (E) photoelectrons before and after heating niobium – molybdenum – zirconium alloys were studied. The contribution of surface zones formed by molybdenum and zirconium atoms to photoelectron emission in the photon energy region of 8–10 eV was analyzed.

Highlights

As it is known, one of the most urgent tasks of physical electronics and nanotechnology is the creation of surface alloys of arbitrary composition with the necessary concentration of alloying elements
Alloys of refractory metals based on niobium, molybdenum, tantalum, and others are widely used in nuclear power, mechanical engineering, vacuum technology, etc
In this paper, using the example of implantation of low-energy Mo and Zr ions in a single crystal Nb (110), we study the change in the spectral dependence of the quantum photoemission yield (QPhY)

Summary

Introduction

As it is known, one of the most urgent tasks of physical electronics and nanotechnology is the creation of surface alloys of arbitrary composition with the necessary concentration of alloying elements. Experimental and theoretical studies of several alloys have shown that controlling the state of s-d electrons by introducing small concentrations of alloying elements and creating surface alloys allows us to solve some fundamental problems of an applied and theoretical nature. One of the disadvantages of such alloys is the difficulty of obtaining atomically pure systems with a low content of carbon, oxygen, and sulfur atoms. The production of alloys by implanting ions of various refractory metals under ultrahigh vacuum conditions can eliminate this specified disadvantage. In this paper, using the example of implantation of low-energy Mo and Zr ions in a single crystal Nb (110), we study the change in the spectral dependence of the quantum photoemission yield (QPhY). The value of the photoemission work of the output is found, and the features of the formation of photoelectron spectra of N(E) in the near and vacuum ultraviolet are studied [1,2,3,4,5,6,7,8]

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Results

Conclusion