Specific features of spin, charge, and orbital ordering in cobaltites
Complex cobalt oxides known as cobaltites are reviewed, including LnCoO 3-based
perovskite-structured rare-earth cobaltites (where Ln is lanthanum or a lanthanide), quasi …
perovskite-structured rare-earth cobaltites (where Ln is lanthanum or a lanthanide), quasi …
Achieving fast oxygen diffusion in perovskites by cation ordering
The oxygen-exchange behavior has been studied in half-doped manganese and cobalt
perovskite oxides. We have found that the oxygen diffusivity in Gd 0.5 Ba 0.5 Mn O 3− δ can …
perovskite oxides. We have found that the oxygen diffusivity in Gd 0.5 Ba 0.5 Mn O 3− δ can …
Transport and magnetic properties of single crystals: A cobalt oxide with square-lattice planes over a wide range of electron and hole do**
Single crystals of the layered perovskite Gd Ba Co 2 O 5+ x (GBCO) have been grown by the
floating-zone method, and their transport, magnetic, and structural properties have been …
floating-zone method, and their transport, magnetic, and structural properties have been …
Different Look at the Spin State of Ions in a Pyramidal Coordination
Using soft-x-ray absorption spectroscopy at the Co L 2, 3 and OK edges, we demonstrate
that the Co 3+ ions with the CoO 5 pyramidal coordination in the layered Sr 2 CoO 3 Cl …
that the Co 3+ ions with the CoO 5 pyramidal coordination in the layered Sr 2 CoO 3 Cl …
Spin Blockade, Orbital Occupation, and Charge Ordering in
CF Chang, Z Hu, H Wu, T Burnus, N Hollmann… - Physical review …, 2009 - APS
Using Co-L 2, 3 and OK x-ray absorption spectroscopy, we reveal that the charge ordering in
La 1.5 Sr 0.5 CoO 4 involves high spin (S= 3/2) Co 2+ and low spin (S= 0) Co 3+ ions. This …
La 1.5 Sr 0.5 CoO 4 involves high spin (S= 3/2) Co 2+ and low spin (S= 0) Co 3+ ions. This …
Ferromagnetism in
A systematic investigation of the low-temperature magnetic properties of La Co O 3 has
demonstrated a ferromagnetism with T c≈ 85 K from surface cobalt atoms. The experimental …
demonstrated a ferromagnetism with T c≈ 85 K from surface cobalt atoms. The experimental …
Tailoring Oxygen Content on PrBaCo2O5+δ Layered Cobaltites
The LnBaCo2O5+ δ cobaltites with ordered A-site cations exhibit a very rich phase diagram
as a function of the oxygen content, which determines the do** of CoO2 planes. By means …
as a function of the oxygen content, which determines the do** of CoO2 planes. By means …
High-temperature order-disorder transition and polaronic conductivity in
Neutron powder diffraction and transport measurements have been used to investigate the
PrBaCo 2 O 5.48 compound between room temperature and 820 K. A structural phase …
PrBaCo 2 O 5.48 compound between room temperature and 820 K. A structural phase …
Half-Metallicity and Magnetic Anisotropy in Double-Perovskite GdBaCo2O6 Films Prepared via Topotactic Oxidation
Double-perovskite GdBaCo2O x is a promising material owing to its fascinating electronic
and magnetic features, such as spin crossover, charge and spin-state ordering, magnetic …
and magnetic features, such as spin crossover, charge and spin-state ordering, magnetic …
Electric, magnetic, and calorimetric properties and phase diagram of
S Tsubouchi, T Kyômen, M Itoh, M Oguni - Physical Review B, 2004 - APS
Resistivity, dc magnetization, ac susceptibility, and heat-capacity measurements were
carried out for polycrystalline Pr 1− x Ca x CoO 3 (0<~ x<~ 0. 5 5). Insulating, metallic, and …
carried out for polycrystalline Pr 1− x Ca x CoO 3 (0<~ x<~ 0. 5 5). Insulating, metallic, and …