K0.51Mn0.93O2 oS20 63

• Mn-Na-O
• Mn-Na-Ni-O
• Co-Mn-Na-O
• Cu-Mn-Na-O
• Mg-Mn-Na-O
• structural properties
• magnetic properties
• Raman spectra
• optical properties
• electron paramagnetic resonance spectra
• transitional
• disordered
• chalcogen
• alkali
• oxide
• orthorhombic