Defect structure and formation of defect complexes in Cu2+-modified metal oxides derived from a spin-Hamiltonian parameter analysis

被引：38

作者：

Eichel, Ruediger-A. ^{[1
]}

Drahus, Michael D. ^{[1
]}

Jakes, Peter ^{[1
]}

Eruenal, Ebru ^{[1
]}

Erdem, Emre ^{[1
]}

Parashar, S. K. S. ^{[2
]}

Kungl, Hans ^{[3
]}

Hoffmann, Michael J. ^{[3
]}

机构：

[1] Univ Freiburg, Inst Phys Chem 1, D-79104 Freiburg, Germany

[2] Indian Inst Technol, Dept Phys & Meteorol, Kharagpur 721302, W Bengal, India

[3] Univ Karlsruhe, Inst Ceram Mech Engn, D-76131 Karlsruhe, Germany

来源：

MOLECULAR PHYSICS | 2009年 / 107卷 / 19期

关键词：

ferroelectrics; defect structure; copper doping; oxygen vacancy; defect dipole; ELECTRON-PARAMAGNETIC-RESONANCE; ZIRCONATE-TITANATE CERAMICS; DOPED BATIO3; COPPER; EPR; ESR; TRANSITION; CU2+; MGO; POLYCRYSTALLINE;

D O I：

10.1080/00268970903084920

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The nearest neighbour oxygen octahedron about copper functional centres in metal oxides has been systematically studied by means of electron paramagnetic resonance (EPR) spectroscopy. In particular, the determined g vertical bar,zz and [image omitted] spin-Hamiltonian parameters were analysed, finding linear dependences as a function of chemical bonding and local distortion of the oxygen octahedron. Moreover, through the introduction of a dimensionless coordination parameter , different defect structures with respect to the number of coordinated oxygen vacancies may be distinguished. This allows for a distinct assignment of defect complexes between the copper functional centre with one or two oxygen vacancies.

引用

页码：1981 / 1986

页数：6

共 60 条

[1]

Abragam A., 1970, ELECT PARAMAGNETIC R

[2] Direct observation of covalency between O and disordered Pb in cubic PbZrO3 [J].

Aoyagi, S ;

Kuroiwa, Y ;

Sawada, A ;

Tanaka, H ;

Harada, I ;

Nishibori, E ;

Takata, M ;

Sakata, M .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2002, 71 (10) :2353-2356

[3]

Atherton N. M., 1993, PRINCIPLES ELECT SPI

[4] Fatigue of lead zirconate titanate ceramics II:: Sesquipolar loading [J].

Balke, Nina ;

Lupascu, Doru C. ;

Granzow, Torsten ;

Roedel, Juergen .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2007, 90 (04) :1088-1093

[5] Fatigue of lead zirconate titanate ceramics.: I:: Unipolar and DC loading [J].

Balke, Nina ;

Lupascu, Doru C. ;

Granzow, Torsten ;

Roedel, Juergen .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2007, 90 (04) :1081-1087

[6] PARAMAGNETIC RESONANCE IN DILUTED COPPER SALTS .3. THEORY, AND EVALUATION OF THE NUCLEAR ELECTRIC QUADRUPOLE MOMENTS OF CU-63 AND CU-65 [J].

BLEANEY, B ;

BOWERS, KD ;

PRYCE, MHL .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1955, 228 (1173) :166-174

[7] ELECTRON-PARAMAGNETIC-RES, ENDOR AND ESE INVESTIGATIONS ON CHROMIUM MODIFIED PBTIO3 CERAMICS [J].

BOTTCHER, R ;

BRUNNER, W ;

MILSCH, B ;

VOLKEL, G ;

WINDSCH, W ;

KIRILLOV, ST .

CHEMICAL PHYSICS LETTERS, 1986, 129 (06) :546-549

[8]

Buckmaster H. A., 1986, Magnetic Resonance Review, V11, P81

[9]

Buckmaster H. A., 1983, Magnetic Resonance Review, V8, P283

[10] JAHN-TELLER EFFECT IN EPR SPECTRUM OF CU++ - MGO AT 1.2 DEGREES K [J].

COFFMAN, RE .

JOURNAL OF CHEMICAL PHYSICS, 1968, 48 (02) :609-&

← 1 2 3 4 5 6 →