Tetrahedral site of Cu(II) in bornite and bournonite

被引：2
|
作者：
Ramanaiah, MV
Ravikumar, RVSSN
Chandrasekhar, AV
Reddy, BJ [1 ]
Reddy, YP
Rao, PS
机构：
[1] Sri Venkateswara Univ, Dept Phys, Tirupati 517502, Andhra Pradesh, India
[2] Pondicherry Univ, Dept Chem, Pondicherry 605006, India
来源：
FERROELECTRICS | 1998年 / 216卷 / 1-4期
关键词：
copper bearing minerals; bornite; bournonite; optical; EPR and crystal field parameters;
D O I：
10.1080/00150199808018225
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Spectroscopic studies on two naturally occurring minerals bornite and bournonite are carried out by optical absorption and EPR techniques. In both samples doubly ionised copper ion exhibits in tetragonally distorted tetrahedral site symmetry. In the case of bornite triply ionised iron is in the regular tetrahedral site symmetry. Different crystal field and tetragonal parameters are evaluated: Dq = 450, B = 690 and C = 2600 cm(-1) for Fe(III) ion in Bornite Dq = 431, Ds = -642 and Dt = 462 cm(-1) for Cu(II) ion in Bornite Dq = 433, Ds = -639 and Dt = 468 cm(-1) for Cu(II) ion in Bournonite.
引用
收藏
页码：27 / 34
页数：8
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