Top nailing type copper-manganese alloy magnetic spin valve
The present invention relates to an upper pinning type cupromanganese magnetic spinning valve, and is characterized by that the structure of magnetic spinning valve prepared by adopting non-magnetic layer doping and magnetic layer-combined pinning process is Co/CuMn/Co-CoO, i. e. in Co/Cu/Co structu...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
06.12.2000
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | The present invention relates to an upper pinning type cupromanganese magnetic spinning valve, and is characterized by that the structure of magnetic spinning valve prepared by adopting non-magnetic layer doping and magnetic layer-combined pinning process is Co/CuMn/Co-CoO, i. e. in Co/Cu/Co structure, the CuMn alloy layer is substituted for non-magnetic medium layer Cu to reduce low saturated field, then the upper pinning Co-CoO layer is added instead of Co layer so as to further improve its performance. The component of intermediate layer CuMn alloy film is Cu1-x Mnx, X value is 3%-11%, andthe front half-part Co layer of upper pinning layer is obtained by radio-frequency sputtering process, and its rear half-part CaO is prepared by using Ar gas and O2 gas mixture with mixing ratio of 5: 2. It posseses good low-field characteristics and high flexibility, and is applicable to magnetic storage material and sensor, etc. |
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Bibliography: | Application Number: CN2000116545 |