Suppression and enhancement of shot noise in mesoscopic transport through localized states

2003 ◽  
Author(s):  
Alex K. Savchenko ◽  
Sergey S. Safonov ◽  
Sergei H. Roshko ◽  
Dmitrii A. Bagrets ◽  
Oleg N. Jouravlev ◽  
...  
Keyword(s):  
Shot Noise ◽  
Localized States ◽  
Mesoscopic Transport

scholarly journals Enhanced Shot Noise in Resonant Tunneling via Interacting Localized States

2003 ◽  
Vol 91 (13) ◽  
Author(s):  
S. S. Safonov ◽  
A. K. Savchenko ◽  
D. A. Bagrets ◽  
O. N. Jouravlev ◽  
Y. V. Nazarov ◽  
...  
Keyword(s):  
Shot Noise ◽  
Resonant Tunneling ◽  
Localized States

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.

scholarly journals Shot noise in mesoscopic transport through localised states

2004 ◽  
Vol 241 (1) ◽  
pp. 26-32 ◽  
Author(s):  
A. K. Savchenko ◽  
S. S. Safonov ◽  
S. H. Roshko ◽  
D. A. Bagrets ◽  
O. N. Jouravlev ◽  
...  
Keyword(s):  
Shot Noise ◽  
Mesoscopic Transport ◽  
Localised States

Shot noise in tunneling through single localized states

2002 ◽  
Vol 12 (1-4) ◽  
pp. 865-867 ◽  
Author(s):  
A. Nauen ◽  
J. Könemann ◽  
U. Zeitler ◽  
F. Hohls ◽  
R.J. Haug
Keyword(s):  
Shot Noise ◽  
Localized States

Reduction of shot-noise in quantum conductors

1999 ◽  
Vol 09 (PR2) ◽  
pp. Pr2-23
Author(s):  
L. Saminadayar ◽  
A. Kumar ◽  
D. C. Glattli ◽  
Y. Jin ◽  
B. Etienne
Keyword(s):  
Shot Noise

LOCALIZED STATES AND BAND STRUCTURE

1972 ◽  
Vol 33 (C3) ◽  
pp. C3-21-C3-25 ◽  
Author(s):  
F. BASSANI
Keyword(s):  
Band Structure ◽  
Localized States

COMPARISON OF OPTICALLY INDUCED LOCALIZED STATES IN CHALCOGENIDE GLASSES AND THEIR CRYSTALLINE COUNTERPARTS

1981 ◽  
Vol 42 (C4) ◽  
pp. C4-383-C4-386 ◽  
Author(s):  
S. G. Bishop ◽  
B. V. Shanabrook ◽  
U. Strom ◽  
P. C. Taylor
Keyword(s):  
Chalcogenide Glasses ◽  
Localized States ◽  
Optically Induced
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