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Synthesis, Crystal Structure, and Magnetic and Electric Properties of the Cross-Linked Chain Cobalt Oxychloride Ba5Co5ClO13

✍ Scribed by K. Yamaura; D.P. Young; T. Siegrist; C. Besnard; C. Svensson; Y. Liu; R.J. Cava

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
380 KB
Volume
158
Category
Article
ISSN
0022-4596

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✦ Synopsis

The cross-linked chain cobalt oxychloride Ba 5 Co 5 ClO 13 is reported. Single crystals were obtained by a 6ux method with BaCl 2 . A hexagonal unit cell (P6 3 /mmc, a ‫؍‬ 5.6980(8) A s and c ‫؍‬ 24.469(5) A s ) was found. The Ψ‰ 3 and Ψ‰ 4 valence cobalt ions were formally distributed into octahedral and tetrahedral sites coordinated by oxide ions. The compound was electrically insulating with a gap of 0.25 eV along the chain. Antiferromagnetism was found, with substantial ferromagnetic character, suggesting that the magnetic ground state is complex.

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