Journal
MICRO & NANO LETTERS
Volume 6, Issue 8, Pages 722-724Publisher
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/mnl.2011.0316
Keywords
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Funding
- National Scientific Foundation of China [51102215]
- Zhejiang Province [Y4100022]
- Special Grand Science-Technology Project in Zhejiang Province [2010C11053]
- Key Innovative Team of Magnetic Materials in Zhejiang Province [2011R09006-06]
- Science and Technology Projects from Jinhua City [2010A12066, 2011A11373, 2011A33112]
- Zhejiang Normal University
- New Bud Talents Grant from Zhejiang Province
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Electromagnetic (EM) characteristics of polymorphic Fe nanotubes (INTs) fabricated by a facile gas bubble-engaged assembly technique were studied at 2-18 GHz. The Fe(2+) concentration was varied to modulate the tube structure, the characteristics of which are closely related to its resulting microwave absorption properties. INTs with large aspect ratios, thick tube walls and small inner diameters were easy to produce at high Fe(2+) concentrations. They showed a strong absorption peak of -22.4 dB at 10.4 GHz and a bandwidth (<= -10 dB) of 12 GHz because of proper EM matching and high dielectric loss.
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