XPS identification of bulk hole defects and itinerant Fe 3d electrons in natural troilite (FeS)

被引：71
作者：
Skinner, WM [1 ]
Nesbitt, HW
Pratt, AR
机构：
[1] Univ S Australia, ARC Special Res Ctr Particle & Mat Interfaces, Ian Wark Res Inst, Mawson Lakes, SA 5095, Australia
[2] Univ Western Ontario, Dept Geol, London, ON N6A 5B7, Canada
[3] Nat Resources Canada, CANMET, Ottawa, ON K1A 0G1, Canada
来源：
GEOCHIMICA ET COSMOCHIMICA ACTA | 2004年 / 68卷 / 10期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1016/j.gca.2003.11.026
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
XPS measurements have been made of vacuum-fractured monoclinic pyrrhotite and troilite that highlight Sulfur coordination (S 2p) and iron electronic state (Fe 2p) differences between these two minerals as a result Of iron lattice site occupancy. Metal-like Fe states are observed in the Fe 2p spectrum of troilite due to increased occupancy of Fe lattice sites and increased Fe-Fe 3d orbital interaction within the constraints of the mineral structure. Additional electron population near the top of the troilite valence band is confirmed by XPS measurement. These results provide comprehensive experimental evidence for itinerent 3d electrons in the natural iron sulfides. Copyright (C) 2004 Elsevier Ltd.
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页码：2259 / 2263
页数：5
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