Landolt-Brnstein Group III
: Condensed Matter
Volume 27 

Magnetic Properties of Non-Metallic Inorganic Compounds Based on Transition Elements 
Subvolume G Various Other Oxides 
Introductory material
6 
Magnetic properties of oxides with various other structures 1

6.1	
Binary oxides of d transition elements (M.S. Seehra, H.P.J. Wijn) 1

6.1.1	
Introduction 1

6.1.1.1	
Scope of the review 1

6.1.1.2	
Earlier reviews 1

6.1.1.3	
Symbols and abbreviations 2

6.1.2	
Monoxides of 3d transition elements 4

6.1.2.1	
Simple monoxides MO 4

References for 6.1.2.1 26

6.1.2.2	
Mixed monoxides MI1-pMIIpO 30

References for 6.1.2.2 31

6.1.2.3	
Diluted monoxides MpN1-pO 31

References for 6.1.2.3 37

6.1.2.4	
Electronic structures 37

6.1.3	
Dioxides of 3d transition elements 38

6.1.3.1	
Simple dioxides MO2 38

6.1.3.2	
Pseudo binary vanadium dioxides V1-xMxO2 44

References for 6.1.3 60

6.1.4	
Intermediate phase binary oxides 62

6.1.4.1	
Magnli phases MnO2n-1 62

6.1.4.2	
The vanadium compounds VnO2n+1 65

References for 6.1.4 69

6.1.5	
Oxides of 4d and 5d transition elements 71

References of 6.1.5 84

6.2	
Oxides with trirutile and pyrochlore structure (J.E. Greedan) 87

6.2.0	
Introduction 87

6.2.1	
Trirutile structure oxides 88

6.2.1.1	
Crystal structure and crystallographic data 88

6.2.1.2	
Magnetic properties 89

6.2.1.2.1	
A6+B3+2O6 90

6.2.1.2.2	
A2+B5+2O6 94

6.2.1.3	
References for 6.2.1 99

6.2.2	
Pyrochlore structure oxides 100

6.2.2.1	
Crystal structure 100

6.2.2.1.1	
Space group and atomic positions 100

6.2.2.1.2	
B2O6 network 100

6.2.2.1.3	
A2O' network 101

6.2.2.1.4	
Magnetic sublattices 102

6.2.2.2	
Magnetic properties 103


3+2B4+
6.2.2.2.1 2O6O' pyrochlores	103 
6.2.2.2.2 
A3+2BB'O7 pyrochlores 118

6.2.2.2.3 
(AA') (BB')O7 121


2+2B5+
6.2.2.2.4 2O7 pyrochlores 121 
6.2.2.2.5 
(AA')2+(BB')5+O7 121

6.2.2.3 
References for 6.2.2 122

6.3 
Hexagonal ferrites (G. Albanese, A. Deriu) 124

6.3.1 
Introduction 124

6.3.1.1 
General remarks 124

6.3.1.2 
Quantities and units 124

6.3.1.3 
List of symbols and abbreviations 128

6.3.2
 and 6.3.3 See Vol. 4B 
6.3.4 
M(magnetoplumbite)-type ferrites 131

6.3.4.1 
Reviewed compositions 131

6.3.4.2 
Intrinsic magnetic properties and crystalline structure 136

6.3.4.3 
Extrinsic magnetic properties and microstructure 147

6.3.4.4 
Phase formation and morphology studies 156

6.3.4.5 
Electric and dielectric properties 162

6.3.4.6 
High frequency magnetic properties 165

6.3.4.7 
Optical properties 168

6.3.5 
W-type ferrites 172

6.3.5.1 
Reviewed compositions 172

6.3.5.2 
Intrinsic magnetic properties and crystalline structure 173

6.3.5.3 
Extrinsic magnetic properties and microstructure 182

6.3.5.4 
Phase formation and morphology studies 183

6.3.5.5 
Electric and dielectric properties 185

6.3.5.6 
High frequency magnetic properties 185

6.3.5.7 
Optical properties 186

6.3.6 
Y-type ferrites 187

6.3.6.1 
Reviewed compositions 187

6.3.6.2 
Intrinsic magnetic properties and crystalline structure 188

6.3.6.3 
Extrinsic magnetic properties and microstructure 191

6.3.6.4 
Phase formation and morphology studies 191

6.3.6.5 
Electric and dielectric properties 192

6.3.6.6 
High frequency magnetic properties 192

6.3.6.7 
Optical properties 194

6.3.7 
Z-type ferrites 194

6.3.7.1 
Reviewed compositions 194

6.3.7.2 
Intrinsic magnetic properties and crystalline structure 194

6.3.7.3 
Phase formation and morphology studies 195

6.3.7.4 
High frequency magnetic properties 195

6.3.7.5 
Optical properties 196

6.3.8 
X-type ferrites 197

6.3.8.1 
Reviewed compositions 197

6.3.8.2 
Intrinsic magnetic properties and crystalline structure 197

6.3.8.3 
Phase formation and morphology studies 198

6.3.9 
Further compositions 199

6.3.10 
Microwave device applications of hexagonal ferrites 207

6.3.11 
Magnetic recording applications of hexagonal ferrites 209

6.3.12 
References for 6.3 216

6.4 
RFe2O4 compounds (K. Siratori) 225

6.4.1 
Introduction 225

6.4.2 
General background and scope 226

6.4.3 
Exchange coupling constants estimated from the data in the paramagnetic region 227

6.4.4 
The Verwey transition 229

6.4.5 
Magnetization in the state of 2-dimensional spin order 231

6.4.6 
Relaxation 237

6.4.7 
References for 6.4 238




