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E-raamat: Cobalt Oxides: From Crystal Chemistry to Physics

(Visva-Bharati University, West Bengal, India), (University of Caen, France)
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  • Ilmumisaeg: 11-Oct-2012
  • Kirjastus: Blackwell Verlag GmbH
  • Keel: eng
  • ISBN-13: 9783527645534
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Cobalt Oxides: From Crystal Chemistry to PhysicsSuurem pilt
  • Formaat: EPUB+DRM
  • Ilmumisaeg: 11-Oct-2012
  • Kirjastus: Blackwell Verlag GmbH
  • Keel: eng
  • ISBN-13: 9783527645534
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Raveau (emeritus, crystallography, U. of Caen, France) and Seikh (chemistry, Visva-Bharati U., India) provide the chemistry and physics communities a broad reference to the complex transition metal oxide. After reviewing the crystal chemistry of cobalt oxides, they detail the electronic and magnetic properties of stoichiometric perovskite cobaltites, oxygen-deficient perovskite cobaltites Sr1-xLnxCoO3-delta and SrCo1-xMxO3-delta, Ruddlesden-Poepper-type cobaltites, cobaltites with a three-dimensional triangular lattice, and triangular layered cobaltites, and unidimensional cobaltite Ca3Co206. Annotation ©2012 Book News, Inc., Portland, OR (booknews.com)

Unparalleled in its breadth and depth, this book systematically treats the electronic and magnetic properties of stoichiometric and non-stoichiometric cobaltites in both ordered and disordered phases -- summarizing, organizing and streamlining the unique set of research results.

Unparalleled in the breadth and depth of its coverage of all important aspects, this book systematically treats the electronic and magnetic properties of stoichiometric and non-stoichiometric cobaltites in both ordered and disordered phases. Authored by a pioneer and a rising star in the field, the monograph summarizes, organizes and streamlines the otherwise difficult-to-obtain information on this topic. An introductory chapter sets forth the crystal chemistry of cobalt oxides to lay the groundwork for an understanding of the complex phenomena observed in this materials class. Special emphasis is placed on a comprehensive discussion of cobaltite physical properties in different structural families.

Providing a thorough introduction to cobalt oxides from a chemical and physical viewpoint as a basis for understanding their intricacies, this is a must-have for both experienced researchers as well as entrants to the field.

Preface xi
Introduction 1(2)
1 Crystal Chemistry of Cobalt Oxides
3(68)
1.1 Introduction
3(1)
1.2 Stoichiometric Perovskites LnCoO3
4(3)
1.3 Stoichiometric Ln1-x AxC0O3 Perovskites (A=Ca, Sr, Ba)
7(2)
1.4 Oxygen-Deficient Perovskites: Order-Disorder Phenomena in the Distribution of Anionic Vacancies
9(9)
1.4.1 The Perovskites ACoO3-δ (A-Ca, Sr, Ba)
9(4)
1.4.2 The Sr-Rich Perovskites Sr1-xLnxCoO3-δ
13(3)
1.4.3 The Ordered Oxygen-Deficient 112 Perovskites LnBaCo2O5+δ and LnBaCo2O5.5+δ
16(2)
1.5 The Ordered Double Stoichiometric Perovskite LaBaCo2O6
18(1)
1.6 Hexagonal Perovskite and Derivatives
19(3)
1.7 The RP-Type Cobaltites: Intergrowths of Perovskite and Rock Salt Layers and Derivatives
22(12)
1.7.1 Single-Layered RP Phases Ln2-xAxxCoO4 (n = 1), with A = Ca, Sr
23(2)
1.7.2 Double-Layered RP Cobaltites: Sr3-xLnxCo2O7-δ type
25(4)
1.7.3 RP Derivatives with Double and Triple Rock Salt Layers
29(4)
1.7.4 Tubular Cobaltites
33(1)
1.8 Cobaltites with a Triangular Lattice
34(25)
1.8.1 Spinel Cobaltites
34(3)
1.8.2 NaxCoO2-Type Lamellar Oxides
37(8)
1.8.3 The Misfit Cobaltites
45(5)
1.8.4 Intergrowth of Hexagonal Perovskite and CdI2-Type Layers
50(1)
1.8.5 Kagome "114" Cobaltites: LnBaCo4O7+δ and CaBaCo4O7+δ
51(7)
1.8.6 Unidimensional Cobaltite Ca3Co2O6
58(1)
1.9 Some Other Original Cobaltites
59(12)
References
64(7)
2 Electronic and Magnetic Properties of Stoichiometric Perovskite Cobaltites
71(58)
2.1 Stoichiometric LnCoO3 Perovskites
71(18)
2.1.1 Electronic Structure and Spin State Transition
71(9)
2.1.2 Magnetic Properties of LnCoO3
80(2)
2.1.3 Electrical Properties of LnCoO3
82(3)
2.1.4 Magnetoresistance in LnCoO3
85(1)
2.1.5 Phase Separation in LnCoO3
86(1)
2.1.6 Thermoelectric Properties of LnCoO3
87(1)
2.1.7 Ferromagnetism in LaCoO3 Nanoparticles and Thin Films
88(1)
2.2 Stoichiometric SrCoO3: Ferromagnetism and Metallic Conductivity
89(1)
2.3 Stoichiometric Ln1-xAxCoO3 Perovskites (A = Ca, Sr, and Ba)
90(31)
2.3.1 Mixed Valence and Spin State of Cobalt
90(3)
2.3.2 Magnetic Properties of Ln1-xAxCoO3 (A = Ca, Sr, and Ba)
93(1)
2.3.2.1 The Perovskites La1-xSrxCoO3
94(3)
2.3.2.2 The Perovskites La1-xAxCoO3 (A = Ca and Ba)
97(2)
2.3.2.3 Other Ln1-xAxCoO3 Perovskites
99(3)
2.3.2.4 Half-Doped Systems
102(1)
2.3.2.5 Substitution at Co Sites in La1-xAxCoO3
103(1)
2.3.3 Transport Properties of Ln1-xAxCoO3
104(1)
2.3.3.1 The Perovskites La1-xSrxCoO3
104(2)
2.3.3.2 The Perovskites La1-x(Ca/Ba)xCoO3
106(1)
2.3.3.3 Other Ln1-xAxCoO3 Perovskites
107(1)
2.3.3.4 Substitution at Co Sites in La1-xAxCoO3
108(1)
2.3.4 Charge Ordering in Ln0.5Ba0.5CoO3 Perovskites
109(1)
2.3.5 Magnetoresistance in Ln1-xAxCoO3
110(4)
2.3.6 Phase Separation in Ln1-xAxCoO3
114(4)
2.3.7 Thermoelectric Power of La1-xSrxCoO3
118(3)
2.4 The << Ordered >> Double Stoichiometric Perovskite LaBaCo2O6
121(8)
References
123(6)
3 Electronic and Magnetic Properties of Oxygen-Deficient Perovskite Cobaltites Sr1-xLnxCoO3-δ and SrCo1-xMxO3-δ
129(50)
3.1 Disordered Perovskites
129(19)
3.1.1 Magnetic Properties of the Disordered Perovskites Sr1-xLnxCoO3-δ
129(6)
3.1.2 Electrical Properties of the Disordered Sr1-xLnxCoO3-δ Perovskites
135(2)
3.1.3 224 Ordered Oxygen-Deficient Phases and Brownmillerite
137(5)
3.1.4 Magnetoresistance
142(3)
3.1.5 Phase Separation
145(1)
3.1.6 Thermoelectric Properties
146(2)
3.2 Ordered 112 LnBaCo2O5+δ Perovskites
148(31)
3.2.1 Magnetic Properties
149(1)
3.2.1.1 LnBaCo2O5
149(1)
3.2.1.2 LnBaCo2O5.5±δ
149(12)
3.2.2 Electron Transport Properties
161(1)
3.2.2.1 LnBaCo2O5
161(1)
3.2.2.2 LnBaCo2O5.5±δ
162(6)
3.2.3 Phase Separation
168(1)
3.2.4 Magnetoresistance
169(3)
3.2.5 Thermoelectric Properties
172(1)
3.2.5.1 LnBaCo2O5
172(1)
3.2.5.2 LnBaCo2O5.5
172(3)
References
175(4)
4 Electronic and Magnetic Properties of Ruddlesden-Poepper-Type Cobaltites
179(32)
4.1 Cobalt Valence and Spin State Transitions
179(6)
4.2 Magnetic Properties of RP Phases
185(11)
4.2.1 The n = 1 - RP Cobaltites Ln2-xAxCoO4
185(1)
4.2.1.1 The Half-Doped RP Phase La1.5Sr0.5CoO4
186(1)
4.2.1.2 The Magnetic Transition Region Around LaSrCoO4
187(3)
4.2.1.3 The 2D Ferromagnet Sr2CoO4
190(1)
4.2.1.4 The Sr-Rich Sr2-xLnxCoO4 Spin Glass-Like Cobaltites
190(2)
4.2.2 The n = 2 RP Cobaltites
192(4)
4.3 Electrical Properties of RP Phases
196(6)
4.3.1 The n = 1 RP Phases Ln2-xSrxCoO4
196(1)
4.3.1.1 The Half-Doped Ln1.5Sr0.5CoO4 Cobaltite
197(2)
4.3.1.2 The LnSrCoO4 Cobaltites
199(1)
4.3.1.3 Sr2CoO4 and Some Sr-Rich Phases Sr2-xLnxCoO4
200(1)
4.3.2 The n = 2 RP Phases
201(1)
4.4 Phase Separation in RP Phases
202(1)
4.5 Magnetoresistance of RP Phases
203(3)
4.6 Thermoelectric Properties of RP Phases
206(5)
References
209(2)
5 Electronic and Magnetic Properties of Cobaltites with a 3D "Triangular Lattice"
211(38)
5.1 The Co3O4 Spinel and Derivatives
211(21)
5.1.1 Valence and Spin States of Cobalt in Bulk Co3O4
211(2)
5.1.2 Magnetic and Transport Properties of Bulk Co3O4 and its Spinel Derivatives
213(1)
5.1.2.1 Magnetic Properties of Bulk Co3O4
213(2)
5.1.2.2 Magnetic Properties of Bulk Co3O4 Spinel Relatives
215(4)
5.1.2.3 Electrical Properties of Co3O4 Spinel
219(2)
5.1.2.4 Magnetoresistance of Cobalt Spinels
221(1)
5.1.3 Magnetic Properties of Nanodimensional Co3O4
221(11)
5.2 The "114" LnBaCo4O7 and CaBaCo4O7 Cobaltites
232(17)
5.2.1 The Cobaltite YBaCo4O7
233(2)
5.2.2 Other LnBaCo4O7 Cobaltites
235(3)
5.2.3 Substitution Effect in YBaCo4O7 at the Cobalt Site
238(1)
5.2.4 The Cobaltite CaBaCo4O7
239(2)
5.2.5 Oxygen Absorption: Oxygen "Hyperstoichiometry" in "114" Cobaltites
241(3)
References
244(5)
6 Electronic and Magnetic Properties of "Triangular" Layered Cobaltites
249(48)
6.1 The Layer Sodium Cobaltites NaxCoO2
250(19)
6.1.1 Valence and Spin States
250(1)
6.1.2 Magnetic Properties of NaxCoO2 and NaxCoO2yH2O
251(7)
6.1.3 Electrical Properties of NaxCoO2
258(2)
6.1.4 Influence of Cobalt Charge and Sodium Ordering upon the Transport and Magnetic Properties of NaxCoO2
260(1)
6.1.5 Magnetoresistance of NaxCoO2
261(1)
6.1.6 Thermoelectric Properties of NaxCoO2
262(4)
6.1.7 Phase Separation in NaxCoO2
266(1)
6.1.8 Superconducting Properties of NaxCoO2yH2O
266(2)
6.1.8.1 The Electronic Structure of NaxCoO2yH2O
268(1)
6.2 Misfit Cobaltites
269(28)
6.2.1 Magnetic Properties of Misfit Cobaltites
269(1)
6.2.1.1 The n = 3 Members: "Ca3Co4O9" and Relatives
269(3)
6.2.1.2 The n = 4 Members of the Bi-A-Co-O Systems (A = Ca, Sr, Ba), and [ Ca2Co4/3Cu2/3O4]0.62CoO2
272(2)
6.2.2 Electrical Properties of Misfit Cobaltites
274(1)
6.2.2.1 The n = 3 Members
274(3)
6.2.2.2 The n = 4 Members
277(1)
6.2.3 Magnetoresistance of Misfit Cobaltites
278(1)
6.2.3.1 n = 3 Misfits
278(2)
6.2.3.2 n = 4 Misfits
280(3)
6.2.4 Thermoelectric Properties of Misfit Cobaltites
283(1)
6.2.4.1 n = 3 Misfit Cobaltites
283(6)
6.2.4.2 n = 4 - Bismuth-Based Misfit Cobaltites
289(1)
6.2.4.3 Mechanism of Thermoelectricity in Misfit and Sodium Cobaltites
290(1)
6.2.4.4 Phase Separation in Misfit Cobaltites
291(1)
References
292(5)
7 Electronic and Magnetic Properties of the "Unidimensional" Cobaltite Ca3Co2o6
297(24)
7.1 Valence and Spin State of Cobalt
297(2)
7.2 Magnetic Properties of 1D-Ca3Co2O6 and Related Derivatives
299(12)
7.2.1 Anisotropy
303(1)
7.2.2 Frustration
303(2)
7.2.3 Quantum Tunneling
305(2)
7.2.4 Nanophase
307(1)
7.2.5 Models
307(2)
7.2.6 Effect of Substitution at the Cobalt Sites
309(2)
7.3 Electrical Resistivity of Ca3Co2O6 and Derivatives
311(4)
7.3.1 Effect of Ca3Co2O6 Doping Upon Resistivity
313(2)
7.4 Magnetoresistance of Ca3Co2O6
315(1)
7.5 Thermoelectric Power of Ca3Co2O6 and Derivatives
315(6)
References
318(3)
Index 321
Bernard Raveau is Emeritus Professor at the University of Caen, France. He received his formal education at this University, and at Ecole Nationale Supérieure de Chimie de Caen as Engineer, and obtained his PhD degree in Physics in 1966. He was Director of CRISMAT, the Laboratory for Crystallography and Materials Science, in Caen, from 1986 to 2004, where he presently continues carrying out his research. He is the founder of the National Research Centre of Technology for Materials, CNRT Matériaux, in Caen, and has been Director of this Centre from 2000 to 2010. Bernard Raveau is a specialist of crystal chemistry and discovered many new transition metal oxides, including high Tc superconducting cuprates, CMR manganites, thermoelectric cobaltites and transition metal phosphates. Author of more than 1300 journal publications, and three books, he has received numerous awards including Berndt Mathias Prize and European Italgaz Prize. He is a member of the Institut Universitaire de France, of Académie des Sciences, of the Indian Academy and Fellow of the Royal Society.

Dr. Md. Motin Seikh is Assistant Professor in the Department of Chemistry at Visva-Bharati University, Santiniketan, West Bengal, India. He has obtained his PhD from the Solid State and Structural Chemistry Unit, Indian Institute of Science (IISc), Bangalore in 2006. He carried out his postdoctoral research at Laboratoire CRISMAT in Caen, France for two years from 2006 to 2007. Dr. Seikh has published very original papers on various aspects of strongly correlated electron oxides, mainly manganites, ferrites and cobaltites. For his outstanding research contribution he received the Best Thesis Award for his PhD in materials chemistry from IISc in the year 2006. He was also a recipient of Junior and Senior Research Fellowship of the Government of India, and a visiting scientist under the programme of the Japanese Society for the Promotion of Science in the year 2004. He has also authored 'Investigations on Transition Metal Oxides' Lambert Academic Publishing, Germany in 2010.
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