- Abstract:
-
The series Sr 2MnO 2Cu 1.5(S 1-xSe x) 2 (0 ≤ x ≤ 1) contains mixed-valent Mn ions (Mn 2+/Mn 3+) in MnO 2 sheets which are separated by copper-deficient antifluorite-type Cu 2-δCh 2 layers with δ ∼ 0.5. The compounds crystallize in the structure type first described for Sr 2Mn 3Sb 2O 2 and are described in the I4/mmm space group at ambient temperatures. Below about 250 K, ordering between Cu + ions and tetrahedral vacancies occurs which is long-range and close to complete in the sulfide-contai...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1021/cm301486v
-
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- Journal:
- CHEMISTRY OF MATERIALS
- Volume:
- 24
- Issue:
- 14
- Pages:
- 2802-2816
- Publication date:
- 2012-07-24
- DOI:
- EISSN:
-
1520-5002
- ISSN:
-
0897-4756
- URN:
-
uuid:a313ca8b-8afa-47e7-8a74-3ff32587c84f
- Source identifiers:
-
348810
- Local pid:
- pubs:348810
- Language:
- English
- Keywords:
- Copyright date:
- 2012
Journal article
Competing Magnetic Structures and the Evolution of Copper Ion/Vacancy Ordering with Composition in the Manganite Oxide Chalcogenides Sr2MnO2Cu1.5(S1-xSex)(2)
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