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Pb cation induced low-temperature crystallization of (Ba center dot Pb) hexa-ferrite thin films

Title
Pb cation induced low-temperature crystallization of (Ba center dot Pb) hexa-ferrite thin films
Authors
Doh, SJ[Doh, Seok Joo]Je, JH[Je, Jung Ho]Cho, TS[Cho, Tae Sik]
DGIST Authors
Doh, SJ[Doh, Seok Joo]
Issue Date
2006-12
Citation
Journal of Electroceramics, 17(2-4), 365-368
Type
Article
Article Type
Article; Proceedings Paper
Keywords
CrystallizationFerritesHexa-FerriteHexa-FerritesLeadLow TemperatureLow Temperature EffectsPb IonsPositive IonsSynchrotron X-RaySynchrotron X-RaysThin-FilmsVibrating Sample MagnetometersX Ray Scattering
ISSN
1385-3449
Abstract
We have studied the low-temperature crystallization of (Ba•Pb) hexa-ferrite thin films using real time synchrotron X-ray scattering, anomalous X-ray scattering, and vibrating sample magnetometer. The crystallization temperature of amorphous (Ba•Pb) hexa-ferrite film (300-Å-thick, ∼530°C) was much lower than that of amorphous Ba hexa-ferrite film, ∼750°C. The crystalline (Ba•Pb) hexa-ferrite phase was formed by solid phase transformation of the interfacial crystalline Fe3O 4 phase through the diffusion of Ba or Pb cations. The low crystallization temperature of the (Ba•Pb) hexa-ferrite phase was due to the lower diffusion activation barrier of Pb cations than that of Ba cations. The small grain size (∼40 nm in diamter) and comparable magnetic properties (Ms : 337 emu/cm3, iHc : 1.60 kOe) of the crystallized (Ba•Pb) hexa-ferrite film also demonstrate its potential possibility for high-density recording media. © Springer Science + Business Media, LLC 2006.
URI
http://hdl.handle.net/20.500.11750/3596
DOI
10.1007/s10832-006-7239-7
Publisher
Springer
Files:
There are no files associated with this item.
Collection:
ETC1. Journal Articles


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