Premium
Electronic Structure of Platinum: A Compton Profile Analysis
Author(s) -
Pandya R. K.,
Joshi K. B.,
Jain Rajesh,
Ahuja B. L.,
Sharma B. K.
Publication year - 1997
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(199703)200:1<137::aid-pssb137>3.0.co;2-3
Subject(s) - platinum , nickel , electronic structure , electron , atomic physics , crystallite , valence (chemistry) , materials science , valence electron , atom (system on chip) , electronic band structure , condensed matter physics , physics , chemistry , nuclear physics , quantum mechanics , metallurgy , biochemistry , computer science , embedded system , catalysis
In this paper we report the results of a Compton profile study on polycrystalline platinum. The measurement has been made using 241 Am γ‐rays and is compared with APW calculations of Papanicolaou et al. and also with our calculations based on the renormalized‐free‐atom (RFA) model. It is seen that the incorporation of electron correlation effects improves slightly the agreement between APW theory and experiment but the best fit to our experimental data is seen for the simple RFA model for 5d 9.2 6s 0.8 configuration. A comparison of the equal valence‐electron‐density Compton profiles of platinum and the other two isogroup metals, namely palladium and nickel, reveals an interesting trend for the d‐band width in agreement with the results based on photoemission measurements. The d‐band occupancy as determined from RFA analysis is in agreement with Lytle's estimates.