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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/54964

Title:	1/f noise in MgO double-barrier magnetic tunnel junctions
Author:	COEY, JOHN MICHAEL DAVID FENG, JIA-FENG DIAO, ZHU
Sponsor:	Higher Education Authority Science Foundation Ireland
Author's Homepage:	http://people.tcd.ie/jcoey http://people.tcd.ie/jfeng http://people.tcd.ie/diaoz
Keywords:	Atomic, molecular and chemical physics MAGNETORESISTANCE
Issue Date:	2011
Citation:	Yu, GQ, Diao, Z, Feng, JF, Kurt, H, Han, XF, Coey, JMD, 1/f noise in MgO double-barrier magnetic tunnel junctions, APPLIED PHYSICS LETTERS, 98, 112504, 2011
Series/Report no.:	APPLIED PHYSICS LETTERS; 98; 112504;
Abstract:	Low frequency noise has been investigated in MgO double-barrier magnetic tunnel junctions (DMTJs) with tunneling magnetoresistance (TMR) ratios up to 250% at room temperature. The noise shows a 1/f frequency spectrum and the minimum of the noise magnitude parameter is 1.2 x 10(-10) mu m(2) in the parallel state for DMTJs annealed at 375 degrees C. The bias dependence of noise and TMR suggests that DMTJs with MgO barriers can be useful for magnetic field sensor applications.
Description:	PUBLISHED
URI:	http://hdl.handle.net/2262/54964
Related links:	http://dx.doi.org/10.1063/1.3562951
Appears in Collections:	Physics (Scholarly Publications)

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