Structural and low temperature transport properties of Fe2B and FeB systems at high pressure

P, Anand Kumar and A T, Satya and Reddy, P V S and M, Sekar and V, Kanchana and G, Vaitheeswaran and Mani, A and S, Kalavathi and N V, Chandra Shekar (2017) Structural and low temperature transport properties of Fe2B and FeB systems at high pressure. Journal of Physics and Chemistry of Solids, 109. pp. 18-25. ISSN 0022-3697

Full text not available from this repository. (Request a copy)


The evolution of crystal structure and the ground state properties of Fe2B and FeB have been studied by performing high pressure X-ray diffraction up to a pressure of ∼24 GPa and temperature dependent (4.2–300 K range) high-pressure resistivity measurements up to ∼ 2 GPa. While a pressure induced reversible structural phase transition from tetragonal to orthorhombic structure is observed at ∼6.3 GPa in Fe2B, FeB has been found to be stable in its orthorhombic phase up to the pressure of 24 GPa. In the case of Fe2B, both parent and daughter phases coexist beyond the transition pressure. The bulk modulus of FeB and Fe2B (tetragonal) have been found to be 248 GPa and 235 GPa respectively. First principle electronic structure calculations have been performed using the present experimental inputs and the calculated ground state properties agree quite well with the major findings of the experiments. Debye temperature extracted from the analysis of low temperature resistivity data is observed to decrease with pressure indicating softening of phonons in both the systems.

[error in script]
IITH Creators:
IITH CreatorsORCiD
Item Type: Article
Uncontrolled Keywords: High pressure; Low temperature; X-ray diffraction; Resistivity; Phase transition
Subjects: Physics
Divisions: Department of Physics
Depositing User: Team Library
Date Deposited: 01 Jun 2017 04:24
Last Modified: 20 Jun 2017 06:21
Publisher URL:
OA policy:
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 3180 Statistics for this ePrint Item