Cobalt Oxides: From Crystal Chemistry to Physics -- Contents -- Preface -- Introduction -- 1 Crystal Chemistry of Cobalt Oxides -- 1.1 Introduction -- 1.2 Stoichiometric Perovskites LnCoO3 -- 1.3 Stoichiometric Ln1-x AxCoO3 Perovskites (A=Ca, Sr,Ba) -- 1.4 Oxygen-Deficient Perovskites: Order-Disorder Phenomena in the Distribution of Anionic Vacancies -- 1.4.1 The Perovskites ACoO3-δ (A-Ca, Sr, Ba) -- 1.4.2 The Sr-Rich Perovskites Sr1-xLnxCoO3-δ -- 1.4.3 The Ordered Oxygen-Deficient 112 Perovskites LnBaCo2O5+δ and LnBaCo2O5.5+δ -- 1.5 The Ordered Double Stoichiometric Perovskite LaBaCo2O6 -- 1.6 Hexagonal Perovskite and Derivatives -- 1.7 The RP-Type Cobaltites: Intergrowths of Perovskite and Rock Salt Layers and Derivatives -- 1.7.1 Single-Layered RP Phases Ln2-xAxxCoO4 (n = 1), with A = Ca, Sr -- 1.7.2 Double-Layered RP Cobaltites: Sr3-xLnxCo2O7-δ type -- 1.7.3 RP Derivatives with Double and Triple Rock Salt Layers -- 1.7.4 Tubular Cobaltites -- 1.8 Cobaltites with a Triangular Lattice -- 1.8.1 Spinel Cobaltites -- 1.8.2 NaxCoO2-Type Lamellar Oxides -- 1.8.3 The Misfit Cobaltites -- 1.8.4 Intergrowth of Hexagonal Perovskite and CdI2-Type Layers -- 1.8.5 Kagomé ''114'' Cobaltites: LnBaCo4O7+δ and CaBaCo4O7+δ -- 1.8.6 Unidimensional Cobaltite Ca3Co2O6 -- 1.9 Some Other Original Cobaltites -- References -- 2 Electronic and Magnetic Properties of Stoichiometric Perovskite Cobaltites -- 2.1 Stoichiometric LnCoO3 Perovskites -- 2.1.1 Electronic Structure and Spin State Transition -- 2.1.2 Magnetic Properties of LnCoO3 -- 2.1.3 Electrical Properties of LnCoO3 -- 2.1.4 Magnetoresistance in LnCoO3 -- 2.1.5 Phase Separation in LnCoO3 -- 2.1.6 Thermoelectric Properties of LnCoO3 -- 2.1.7 Ferromagnetism in LaCoO3 Nanoparticles and Thin Films -- 2.2 Stoichiometric SrCoO3: Ferromagnetism and Metallic Conductivity.

2.3 Stoichiometric Ln1-xAxCoO3 Perovskites (A = Ca, Sr, and Ba) -- 2.3.1 Mixed Valence and Spin State of Cobalt -- 2.3.2 Magnetic Properties of Ln1-xAxCoO3 (A = Ca, Sr, and Ba) -- 2.3.2.1 The Perovskites La1-xSrxCoO3 -- 2.3.2.2 The Perovskites La1-xAxCoO3 (A = Ca and Ba) -- 2.3.2.3 Other Ln1-xAxCoO3 Perovskites -- 2.3.2.4 Half-Doped Systems -- 2.3.2.5 Substitution at Co Sites in La1-xAxCoO3 -- 2.3.3 Transport Properties of Ln1-xAxCoO3 -- 2.3.3.1 The Perovskites La1-xSrxCoO3 -- 2.3.3.2 The Perovskites La1-x(Ca/Ba)xCoO3 -- 2.3.3.3 Other Ln1-xAxCoO3 Perovskites -- 2.3.3.4 Substitution at Co Sites in La1-xAxCoO3 -- 2.3.4 Charge Ordering in Ln0.5Ba0.5CoO3 Perovskites -- 2.3.5 Magnetoresistance in Ln1-xAxCoO3 -- 2.3.6 Phase Separation in Ln1-xAxCoO3 -- 2.3.7 Thermoelectric Power of La1-xSrxCoO3 -- 2.4 The « Ordered » Double Stoichiometric Perovskite LaBaCo2O6 -- References -- 3 Electronic and Magnetic Properties of Oxygen-Deficient Perovskite Cobaltites Sr1-xLnxCoO3-δ and SrCo1-xMxO3-δ -- 3.1 Disordered Perovskites -- 3.1.1 Magnetic Properties of the Disordered Perovskites Sr1-xLnxCoO3-δ -- 3.1.2 Electrical Properties of the Disordered Sr1-xLnxCoO3-δ Perovskites -- 3.1.3 224 Ordered Oxygen-Deficient Phases and Brownmillerite -- 3.1.4 Magnetoresistance -- 3.1.5 Phase Separation -- 3.1.6 Thermoelectric Properties -- 3.2 Ordered 112 LnBaCo2O5+δ Perovskites -- 3.2.1 Magnetic Properties -- 3.2.1.1 LnBaCo2O5 -- 3.2.1.2 LnBaCo2O5.5±δ -- 3.2.2 Electron Transport Properties -- 3.2.2.1 LnBaCo2O5 -- 3.2.2.2 LnBaCo2O5.5±δ -- 3.2.3 Phase Separation -- 3.2.4 Magnetoresistance -- 3.2.5 Thermoelectric Properties -- 3.2.5.1 LnBaCo2O5 -- 3.2.5.2 LnBaCo2O5.5 -- References -- 4 Electronic and Magnetic Properties of Ruddlesden- Poepper-Type Cobaltites -- 4.1 Cobalt Valence and Spin State Transitions -- 4.2 Magnetic Properties of RP Phases.

4.2.1 The n = 1 - RP Cobaltites Ln2-xAxCoO4 -- 4.2.1.1 The Half-Doped RP Phase La1.5Sr0.5CoO4 -- 4.2.1.2 The Magnetic Transition Region Around LaSrCoO4 -- 4.2.1.3 The 2D Ferromagnet Sr2CoO4 -- 4.2.1.4 The Sr-Rich Sr2-xLnxCoO4 Spin Glass-Like Cobaltites -- 4.2.2 The n = 2 RP Cobaltites -- 4.3 Electrical Properties of RP Phases -- 4.3.1 The n = 1 RP Phases Ln2-xSrxCoO4 -- 4.3.1.1 The Half-Doped Ln1.5Sr0.5CoO4 Cobaltite -- 4.3.1.2 The LnSrCoO4 Cobaltites -- 4.3.1.3 Sr2CoO4 and Some Sr-Rich Phases Sr2-xLnxCoO4 -- 4.3.2 The n = 2 RP Phases -- 4.4 Phase Separation in RP Phases -- 4.5 Magnetoresistance of RP Phases -- 4.6 Thermoelectric Properties of RP Phases -- References -- 5 Electronic and Magnetic Properties of Cobaltites with a 3D ''Triangular Lattice'' -- 5.1 The Co3O4 Spinel and Derivatives -- 5.1.1 Valence and Spin States of Cobalt in Bulk Co3O4 -- 5.1.2 Magnetic and Transport Properties of Bulk Co3O4 and its Spinel Derivatives -- 5.1.2.1 Magnetic Properties of Bulk Co3O4 -- 5.1.2.2 Magnetic Properties of Bulk Co3O4 Spinel Relatives -- 5.1.2.3 Electrical Properties of Co3O4 Spinel -- 5.1.2.4 Magnetoresistance of Cobalt Spinels -- 5.1.3 Magnetic Properties of Nanodimensional Co3O4 -- 5.2 The ''114'' LnBaCo4O7 and CaBaCo4O7 Cobaltites -- 5.2.1 The Cobaltite YBaCo4O7 -- 5.2.2 Other LnBaCo4O7 Cobaltites -- 5.2.3 Substitution Effect in YBaCo4O7 at the Cobalt Site -- 5.2.4 The Cobaltite CaBaCo4O7 -- 5.2.5 Oxygen Absorption: Oxygen ''Hyperstoichiometry'' in ''114'' Cobaltites -- References -- 6 Electronic and Magnetic Properties of ''Triangular'' Layered Cobaltites -- 6.1 The Layer Sodium Cobaltites NaxCoO2 -- 6.1.1 Valence and Spin States -- 6.1.2 Magnetic Properties of NaxCoO2 and NaxCoO2˙yH2O -- 6.1.3 Electrical Properties of NaxCoO2 -- 6.1.4 Influence of Cobalt Charge and Sodium Ordering upon the Transport and Magnetic Properties of NaxCoO2.

6.1.5 Magnetoresistance of NaxCoO2 -- 6.1.6 Thermoelectric Properties of NaxCoO2 -- 6.1.7 Phase Separation in NaxCoO2 -- 6.1.8 Superconducting Properties of NaxCoO2˙yH2O -- 6.1.8.1 The Electronic Structure of NaxCoO2.yH2O -- 6.2 Misfit Cobaltites -- 6.2.1 Magnetic Properties of Misfit Cobaltites -- 6.2.1.1 The n = 3 Members: ''Ca3Co4O9'' and Relatives -- 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 -- 6.2.2 Electrical Properties of Mis.t Cobaltites -- 6.2.2.1 The n = 3 Members -- 6.2.2.2 The n = 4 Members -- 6.2.3 Magnetoresistance of Misfit Cobaltites -- 6.2.3.1 n = 3 Misfits -- 6.2.3.2 n = 4 Misfits -- 6.2.4 Thermoelectric Properties of Misfit Cobaltites -- 6.2.4.1 n = 3 Misfit Cobaltites -- 6.2.4.2 n = 4 - Bismuth-Based Misfit Cobaltites -- 6.2.4.3 Mechanism of Thermoelectricity in Misfit and Sodium Cobaltites -- 6.2.4.4 Phase Separation in Misfit Cobaltites -- References -- 7 Electronic and Magnetic Properties of the ''Unidimensional'' Cobaltite Ca3Co2o6 -- 7.1 Valence and Spin State of Cobalt -- 7.2 Magnetic Properties of 1D-Ca3Co2O6 and Related Derivatives -- 7.2.1 Anisotropy -- 7.2.2 Frustration -- 7.2.3 Quantum Tunneling -- 7.2.4 Nanophase -- 7.2.5 Models -- 7.2.6 Effect of Substitution at the Cobalt Sites -- 7.3 Electrical Resistivity of Ca3Co2O6 and Derivatives -- 7.3.1 Effect of Ca3Co2O6 Doping Upon Resistivity -- 7.4 Magnetoresistance of Ca3Co2O6 -- 7.5 Thermoelectric Power of Ca3Co2O6 and Derivatives -- References -- Index.