Electronic Structure of Sm(Ni_{1-x}Co_{x})₃ Alloys - XPS and ab initio Study

• Authors: A. Majtyka , M. Sikora , D. Blachiński , G. Chełkowska , J. Deniszczyk
• Languages of publication: EN

Abstracts

EN

The band structure investigations for Sm(Ni_{1-x}Co_{x})₃ alloys by means of X-ray photoelectron spectroscopy (XPS) and an ab initio density functional theory (DFT) calculations are presented. The aim was to determine an effect of Ni/Co substitution on the electronic structure of the alloys. Investigations have shown that the Ni/Co substitution results in a reconstruction of the valence band (VB), especially the intensity near the Fermi level decreases with Co content. An ab initio simulated XPS VB spectra agree qualitatively with experimental ones with the exception of the Sm-4f sub-spectra where the multiplet decomposition is observed. Calculations shown that variation of magnetization in Sm(Ni_{1-x}Co_{x})₃ is driven mainly by the Ni/Co-3d and Sm-5d states polarization and increases linearly with rising Co content.

Keywords

EN

71.20.Be; 79.60.Bm

Discipline

• 79.60.Bm: Clean metal, semiconductor, and insulator surfaces
• 71.20.Be: Transition metals and alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2018
• Volume: 133
• Issue: 3
• Pages: 673-675

Dates

published

2018-03

Contributors

author

A. Majtyka

• Institute of Materials Science, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland

author

M. Sikora

• A. Chełkowski Institute of Physics, University of Silesia in Katowice, Uniwersytecka 4, 40-007 Katowice, Poland

author

D. Blachiński

• A. Chełkowski Institute of Physics, University of Silesia in Katowice, Uniwersytecka 4, 40-007 Katowice, Poland

author

G. Chełkowska

• A. Chełkowski Institute of Physics, University of Silesia in Katowice, Uniwersytecka 4, 40-007 Katowice, Poland

author

J. Deniszczyk

• Institute of Materials Science, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland

References

• [1] T. Maurer, F. Ott, G. Chaboussant, Y. Soumare, J-Y Piquemal, G. Viau, Appl. Phys. Lett. 91, 172501 (2007), doi: 10.1063/1.2800786
• [2] U.S. Department of Energy, Critical Materials Strategy, 2010
• [3] E.M.T. Velu, D.N. Lambeth, J. Appl. Phys. 69, 5175 (1991), doi: 10.1063/1.348118
• [4] E.P Wohlfarth, K Buschow, Ferromagnetic Materials, Vol. 4, Elsevier, North-Holland, Amsterdam 1988, p. 131
• [5] M. Seifert, V. Neu, L. Schultz, Appl. Phys. Lett. 91, 022501 (2009), doi: 10.1063/1.3068503
• [6] K. Nouri, M. Jemmali, S. Walha, J. Alloy Compd. 672, 440 (2016), doi: 10.1016/j.jallcom.2016.02.142
• [7] M. Sikora, D. Blachliński, K. Ociepka, A. Bajorek, K. Prusik, G. Chełkowska, Acta Phys. Pol. A 133, 486 (2018)., doi: 10.12693/APhysPolA.133.486
• [8] K. Schwarz, P. Blaha, G.K.H. Madsen, Comput. Phys. Commun. 147, 71 (2002), doi: 10.1016/S0010-4655(02)00206-0
• [9] D. Singh, Plane Waves, Pseudopotentials, and the APW Method, Kluwer Academic Publishers, Dordrecht 1994
• [10] J.P. Perdew,A. Ruzsinszky, Ga.I. Csonka, O. A. Vydrov, G.E. Scuseria, L.A. Constantin, X. Zhou, K. Burke, Phys. Rev. Lett. 100, 136406 (2008), doi: 10.1103/PhysRevLett.100.136406
• [11] V.I. Anisimov, F. Aryasetiawan, A.I. Lichtenstein, J. Phys.: Condens. Matter 9, 767 (1997), doi: 10.1088/0953-8984/9/4/002
• [12] A. Dutta, P.K. Mukhopadhyay, T.P. Sinha, S. Shannigrahi, A.K. Himanshu, P. Sen, S.K. Bandyopadhyay, Mater. Chem. Phys. 179, 55 (2016), doi: 10.1016/j.matvhemphys.2016.05.009
• [13] J.J. Yeh, I. Lindau, Atom. Data Nucl. Data 32, (1985)
• [14] N. Lu, X. Song, J. Zhang, Nanotech. 21, 115708 (2010), doi: 10.1088/0957-4484/21/11/115708
• [15] I.Yu. Gaidukova, S.A. Granovsky, A.S. Markosyan, V.E. Rodimin, J. Magn. Magn. Mater. 301, 124 (2006), doi: 10.1016/j/jmmm.2005.06.025
• [16] Landolt-Börnstein, Numerical Data and Functional Relationships in Science and Technology: New series. Geophysics and space research, Springer 1982
• [17] S. Lebègue, A. Svane, M.I. Katsnelson, A.I. Lichtenstein, O. Eriksen, Phys. Rev. B 74, 045114 (2016), doi: 10.1103/PhysRevB.74.045114

Identifiers

DOI

10.12693/APhysPolA.133.673