X-ray photoelectron spectroscopy of FeP phosphide

• Published in: Journal of experimental and theoretical physics Vol. 124; no. 2; pp. 251 - 260
• Main Authors: Teterin, Yu. A., Sobolev, A. V., Presnyakov, I. A., Maslakov, K. I., Teterin, A. Yu, Morozov, I. V., Chernyavskii, I. O., Ivanov, K. E., Shevel’kov, A. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-02-2017; Springer; Springer Nature B.V
• Subjects: Analysis; Atomic properties; ATOMS; BINDING ENERGY; CATIONS; Classical and Quantum Gravitation; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COVALENCE; ELECTRON SPECTRA; Electron spin; ELECTRONS; Elementary Particles; Energy (Physics); Ferroalloys; Iron; IRON COMPOUNDS; IRON IONS; Parameters; Particle and Nuclear Physics; PHOSPHIDES; PHOSPHORUS; Photoelectrons; Physics; Physics and Astronomy; Quantum Field Theory; Relativity Theory; Solid State Physics; Solids and Liquids; Spectra; SPIN; STABILIZATION; X ray photoelectron spectroscopy; X-ray spectroscopy
• ISSN: 1063-7761; 1090-6509
• DOI: 10.1134/S1063776117010174

The structure of the outer and inner electron spectra of iron (2
p
, 3
p
, 3
s
, and 3
d
) and phosphorus (3
s
and 3
p
) atoms in FeP monophosphide is studied in detail by the X-ray photoelectron spectroscopy (XPS) method. On the basis of the analysis of the binding energy of electrons, as well as the parameters characterizing the structure of experimental spectra, a conclusion is made that Fe
3+
(
d
5
) cations in FeP are stabilized in a state with intermediate value of the total spin (IS,
S
= 3/2). The range of values of intra-atomic parameters (10
Dq
,
J
H
) is established in which the consideration of the high degree of covalence of Fe–P bonds may lead to the stabilization of (FeP
6
)
15–
clusters in the IS state.