期刊
CHEMICAL PHYSICS LETTERS
卷 496, 期 1-3, 页码 117-121出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2010.07.029
关键词
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资金
- National Key Project of Fundamental Research of China [2005CB623605]
- National Key Projects for Basic Researchs of China [2010CB923404]
- Doctor's Scientific Research Foundation of Anhui University of Architecture [2009-3]
Single-crystal hollandite-type manganese oxides Ba1+delta Mn8O16 nanoribbons (width of 30-500 nm and up to several hundred micrometers long) are synthesized by a simple molten-salt method. At 43 K a rapid increase of magnetization is observed; the zero field-cooled (ZFC) and field-cooled (FC) magnetization curves diverge below this temperature with a sharp cusp around 26 K in the ZFC curve revealing spin-glass-like behavior in the Ba1+delta Mn8O16 nanoribbons. Measurements of ac-susceptibility indicate the coexistence of a weak ferromagnetic phase with a spin-glass component in the nanoribbons, which is distinct from the canted antiferromagnetic state found in the counterpart bulk sample. (C) 2010 Elsevier B.V. All rights reserved.
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