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Dive into the research topics where John Read is active.

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Featured researches published by John Read.


Applied Physics Letters | 2011

Magnetic switching fluctuations from sidewall oxides in MgO/FeCoB magnetic tunnel junctions

Joshua M. Pomeroy; John Read

Sharp magnetic switching distributions with coupling to magnetic sidewall oxides in FeCoB/MgO magnetic tunnel junctions (MTJs) are revealed by magneto-resistance first order reversal curve (MR-FORC) measurements. Tunneling magneto-resistance (TMR) and FORC data in units of % TMR/mT2 are shown for two identical devices that differ only by the annealing. The annealed sample has much larger TMR and correspondingly higher switching density ρ. In both cases, the MR-FORC data exhibit a prominent “checkerboard” pattern that implies coupling to magnetic oxides on the MTJ sidewalls.


Bulletin of the American Physical Society | 2015

Epitaxial IrMn3 on MgO(111) by sputter deposition

Alejandro Jara; Igor Barsukov; Yu-Jin Chen; Brian Youngblood; John Read; Patrick M. Braganca; Ilya Krivorotov


Bulletin of the American Physical Society | 2012

Spin Torque in Asymmetric CoFeB/MgO/FeB Magnetic Tunnel Junctions

Hsin-wei Tseng; Yun Li; John Read; D. C. Ralph; R. A. Buhrman


Bulletin of the American Physical Society | 2012

Magnon contribution to the spin torque and magnetoresistance properties of FeCoB/MgO/FeCoB magnetic tunnel junctions

Yun Li; Hsin-wei Tseng; John Read; J. A. Katine; D. C. Ralph; R. A. Buhrman


Bulletin of the American Physical Society | 2011

Magneto-resistance based First Order Reversal Curve (MR-FORC) analysis of MgO based MTJs

Joshua M. Pomeroy; John Read


Bulletin of the American Physical Society | 2011

The effect of annealing on the spin-transfer torques of MgO MTJ nanopillars

Yun Li; Hsin-wei Tseng; Pinshane Y. Huang; John Read; D. C. Ralph; R. A. Buhrman


Archive | 2010

Spin Torque Switching in Asymmetric Fe60Co20B20/MgO/ Ni60Fe20B20 Magnetic Tunnel Junctions

Hinwei Tseng; Yue Li; John Read; Chen Wang; Ong Lee Lee; P. G. Gowtham; Patrick M. Braganca; D. C. Ralph; R. A. Buhrman


Bulletin of the American Physical Society | 2010

Correlating microstructure and magnetization configurations with local spin transport in MgO-based nano-MTJs

Lei Huang; June Lau; Paul Morrow; John Read; William F. Egelhoff; Yimei Zhu


Bulletin of the American Physical Society | 2009

The Electronic Properties of AlN Tunnel Barriers and the Effect of Oxygen Impurities

Yun Li; John Read; Pinshane Y. Huang; Hsin-wei Tseng; R. A. Buhrman


Archive | 2008

Oxidation of MgB2 Thin Films

John Read; Yi Cui; Brian H. Moeckly; Jinian Shu; Xiaoxing Xi; R. A. Buhrman

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Joshua M. Pomeroy

National Institute of Standards and Technology

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William F. Egelhoff

National Institute of Standards and Technology

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Alejandro Jara

University of California

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