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
Aoyagi, S
Kuroiwa, Y
Sawada, A
Tanaka, H
Harada, I
Nishibori, E
Takata, M
Sakata, M
[J]. 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
Balke, Nina
Lupascu, Doru C.
Granzow, Torsten
Roedel, Juergen
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2007, 90 (04) : 1088 - 1093
[5] Fatigue of lead zirconate titanate ceramics.: I:: Unipolar and DC loading
Balke, Nina
Lupascu, Doru C.
Granzow, Torsten
Roedel, Juergen
[J]. 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
BLEANEY, B
BOWERS, KD
PRYCE, MHL
[J]. 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
BOTTCHER, R
BRUNNER, W
MILSCH, B
VOLKEL, G
WINDSCH, W
KIRILLOV, ST
[J]. 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
COFFMAN, RE
[J]. JOURNAL OF CHEMICAL PHYSICS, 1968, 48 (02) : 609 - &

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