scholarly journals Superpoissonian shot noise in organic magnetic tunnel junctions

2014 ◽  
Vol 105 (23) ◽  
pp. 233302 ◽  
Author(s):  
Juan Pedro Cascales ◽  
Jhen-Yong Hong ◽  
Isidoro Martinez ◽  
Minn-Tsong Lin ◽  
Tomasz Szczepański ◽  
...  
Keyword(s):  
Shot Noise ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions

scholarly journals Signature of Coherent Transport in Epitaxial Spinel-Based Magnetic Tunnel Junctions Probed by Shot Noise Measurement

2012 ◽  
Vol 5 (5) ◽  
pp. 053003 ◽  
Author(s):  
Takahiro Tanaka ◽  
Tomonori Arakawa ◽  
Kensaku Chida ◽  
Yoshitaka Nishihara ◽  
Daichi Chiba ◽  
...  
Keyword(s):  
Shot Noise ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Noise Measurement ◽  
Coherent Transport

scholarly journals Shot Noise in Magnetic Tunnel Junctions: Evidence for Sequential Tunneling

2006 ◽  
Vol 97 (26) ◽  
Author(s):  
R. Guerrero ◽  
F. G. Aliev ◽  
Y. Tserkovnyak ◽  
T. S. Santos ◽  
J. S. Moodera
Keyword(s):  
Shot Noise ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions

Shot noise in Co/Al2O3〈M〉/Py (M=Cr, Si) magnetic tunnel junctions

2007 ◽  
Vol 316 (2) ◽  
pp. e990-e993
Author(s):  
R. Guerrero ◽  
F.G. Aliev ◽  
T. Santos ◽  
J.S. Moodera
Keyword(s):  
Shot Noise ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions

scholarly journals Controlling Shot Noise in Double-Barrier Magnetic Tunnel Junctions

2012 ◽  
Vol 109 (6) ◽  
Author(s):  
J. P. Cascales ◽  
D. Herranz ◽  
F. G. Aliev ◽  
T. Szczepański ◽  
V. K. Dugaev ◽  
...  
Keyword(s):  
Shot Noise ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Double Barrier

Shot Noise in Epitaxial Double-Barrier Magnetic Tunnel Junctions

2013 ◽  
Vol 49 (7) ◽  
pp. 4347-4350
Author(s):  
Juan Pedro Cascales ◽  
Laura Martin ◽  
Amandine Dulluard ◽  
Michel Hehn ◽  
Coriolan Tiusan ◽  
...  
Keyword(s):  
Shot Noise ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Double Barrier

SHOT NOISE SUPPRESSION IN INDIVIDUAL AND SERIES ARRAYS OF MAGNETIC TUNNEL JUNCTIONS

2011 ◽  
Vol 10 (04) ◽  
pp. 381-394 ◽  
Author(s):  
AISHA GOKCE ◽  
RYAN STEARRETT ◽  
E. R. NOWAK ◽  
C. NORDMAN
Keyword(s):  
Shot Noise ◽  
Noise Suppression ◽  
Tunnel Junctions ◽  
Noise Source ◽  
Magnetic Tunnel Junctions ◽  
Fano Factor ◽  
Localized States ◽  
Tunnel Barrier ◽  
In Series ◽  
Shot Noise Suppression

Charge-current shot noise is investigated in single magnetic tunnel junctions and devices having multiple junctions that are connected in series. The ratio of the measured shot noise in single junctions to the expected Poisson value, namely the Fano factor, F, is observed to vary from 1 to well below 0.5. Deviations from F = 1 are attributed to localized states (defects) located in the tunnel barrier or at the interfaces with the magnetic electrodes. For series arrays of junctions, the Fano factor scales inversely with the number (1 ≤ N ≤ 30) of junctions in series, even for junctions exhibiting sub-Poissonian (F < 1) shot noise. The 1/N scaling is consistent with the incoherent tunneling of electrons across junctions and indicates that each junction behaves as an individual noise source. The advantages of incorporating series arrays of magnetic tunnel junctions into devices for magnetic field sensing are discussed.

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