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# The Relation Between The Elastic And Electronic Structure Properties Of Niobium Under Ultrahigh Pressures

Name
Andrey
Surname
Lugovskoy
Scientific organization
Materials Modeling and Development Laboratory, National University Of Science and Technology "MISIS"
Candidate Of Science
Position
Engineer
Scientific discipline
Physics & Astronomy
Topic
The Relation Between The Elastic And Electronic Structure Properties Of Niobium Under Ultrahigh Pressures
Abstract
We present qualitatively new picture of the relation of electronic structure and elastic properties in pure niobium. Carefull theoretical study were performed to figure out the impact of electronic topological transition (ETT) on the character of stress-strain relations in the material. A peculiarity of the elastic properties of Nb is clearly observed in the pressure range of 0-100 GPa. The role of the electronic structure modification upon deformation in this effect can be clearly distinguished. We belive that obtained results may change the understanding of elasticity of solids.
Keywords
ab initio modeling, solids, elasticity, electronic structure
Summary

Lugovskoy A. V. 1, Tal A. A.1,2,  Mosyagin I. Yu. 1,2 Ponomareva A. V. 1 , Abrikosov I. A. 1,2

1 NUST MISIS, Materials Modeling and Development Laboratory, Moscow, Russia