Spin transport in organics and organic spin devices
Spin transport in organics and organic spin devices
- Author(s): Z.G. Yu ; M.A. Berding ; S. Krishnamurthy
- DOI: 10.1049/ip-cds:20050043
For access to this article, please select a purchase option:
Buy article PDF
Buy Knowledge Pack
IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.
Thank you
Your recommendation has been sent to your librarian.
- Author(s): Z.G. Yu 1 ; M.A. Berding 1 ; S. Krishnamurthy 1
-
-
View affiliations
-
Affiliations:
1: SRI International, California, USA
-
Affiliations:
1: SRI International, California, USA
- Source:
Volume 152, Issue 4,
August 2005,
p.
334 – 339
DOI: 10.1049/ip-cds:20050043 , Print ISSN 1350-2409, Online ISSN 1359-7000
The authors present a theory to describe spin transport across a polymer sandwiched between magnetic contacts and propose organic spin devices based on this theory. It is found that even a weak magnetic field can significantly modify spin transport in polymers through spin precession. This sensitivity can be exploited to design ultrasensitive magnetometers and low-power magnetic-field-effect transistors. It is shown that, at room temperature, the organic magnetometers are capable of detecting sub-nanotesla magnetic fields, and the I–V characteristics of the magnetic-field-effect transistors can be strongly modified by magnetic fields of a few gauss with response times of a few nanoseconds.
Inspec keywords: magnetometers; field effect transistors; polymers; organic semiconductors; magnetoelectronics; spin polarised transport
Other keywords:
Subjects: Sensing devices and transducers; Other semiconductor materials; Magnetic instruments and techniques; Electrical properties of organic compounds and polymers (thin films, low-dimensional and nanoscale structures); Spin polarized transport; Other field effect devices; Magneto-acoustic, magnetoresistive, magnetostrictive and magnetostatic wave devices; Magnetic variables measurement
References
-
-
1)
- A.M. Bratkovsky , V.V. Osipov . High-frequency spin-valve effect in a ferromagnet-semiconductor-ferromagnet structure based on precession of the injected spins. Phys. Rev. Lett.
-
2)
- Z.G. Yu , M.A. Berding , S. Krishnamurthy . Spin drift, spin precession, and magnetoresistance of noncollinear magnet-polymer-magnet structures. Phys. Rev. B, Condens. Matter Mater. Phys.
-
3)
- Z.G. Yu , M.E. Flatte . Electric-field dependent spin diffusion and spin injection into semiconductors. Phys. Rev. B, Condens. Matter Mater. Phys.
-
4)
- Z.G. Yu , M.E. Flatté . Spin diffusion and injection in semiconductor structures: Electric field effects. Phys. Rev. B, Condens. Matter Mater. Phys.
-
5)
- M. Pannetier , C. Fermon , G. Le Goff , J. Simola , E. Kerr . Femtotesla magnetic field measurement with magnetoresistive sensors. Science , 1648 - 1650
-
6)
- J.E. Lenz . A review of magnetic sensors. Proc. IEEE , 973 - 989
-
7)
- Z.G. Yu , D.L. Smith , A. Saxena , A.R. Bishop . Green's function approach for a dynamical study of transport in metal/organic/metal structures. Phys. Rev. B, Condens. Matter , 16001 - 16010
-
8)
- M. Johnson , R.H. Silsbee . Interfacial charge-spin coupling: injection and detection of spin magnetization in metals. Phys. Rev. Lett. , 1790 - 1793
-
9)
- I.H. Campbell , D.L. Smith . Physics of organic electronic devices. Solid State Phys. , 1 - 117
-
10)
- S.A. Wolf , D.D. Awschalom , R.A. Buhrman , J.M. Daughton , S. von Molnár , M.L. Roukes , A.Y. Chtchelkanova , D.M. Treger . Spintronics: a spin-based electronics vision for the future. Science , 1488 - 1495
-
11)
- Z.H. Xiong , D. Wu , Z.V. Vardeny , J. Shi . Giant magnetoresistance in organic spin-valves. Nature , 821 - 824
-
12)
- Y. Qi , S. Zhang . Spin diffusion at finite electric and magnetic fields. Phys. Rev. B, Condens. Matter Mater. Phys.
-
13)
- V.V. Osipov , A.M. Bratkovsky . A class of spin injection-precession ultrafast nanodevices. Appl. Phys. Lett. , 2118 - 2120
-
14)
- M. Tondra , J.M. Daughton , D. Wang , R.S. Beech , A. Fink , J.A. Taylor . Picotesla field sensor design using spin-dependent tunneling devices. J. Appl. Phys. , 6688 - 6690
-
15)
- F.J. Jedema , H.B. Heersche , A.T. Filip , J.J.A. Baselmans , B.J. van Wees . Electrical detection of spin precession in a metallic mesoscopic spin valve. Nature , 713 - 716
-
16)
- M. Bowen , M. Bibes , A. Barthelemy , J.P. Contour , A. Anane , Y. Lemaitre , A. Fert . Nearly total spin polarization in La_{2/3}Sr_{1/3}MnO_3 from tunneling experiment. Appl. Phys. Lett. , 233 - 235
-
17)
- Z.G. Yu , M.A. Berding , S. Krishnamurthy . Organic magnetic-field-effect transistors and ultrasensitive magnetometers. J. Appl. Phys.
-
18)
- S. Bandyopadhyay , M. Cahay . Proposal for a spintronic femto-tesla magnetic field sensor. Physica E , 98 - 103
-
19)
- Cavallini, M., Biscarini, F., Dediu, V., Nozar, P., Taliani, C., Zamboni, R.: ‘Half metallic response of manganite films at room temperature from spin-polarized scanning tunneling microscopy’, cond-mat/0301101.
-
20)
- V. Dediu , M. Murgia , F.C. Matacotta , C. Taliani , S. Barbanera . Room temperature spin polarized injection in organic semiconductor. Solid State Commun. , 181 - 184
-
21)
- M. Johnson , R.H. Silsbee . Spin-injection experiment. Phys. Rev. B, Condens. Matter , 5326 - 5335
-
22)
- A.G. Aronov , G.E. Pikus . Spin injection into semiconductors. Fiz. Tekh. Poluprovodn. , 1177 - 1179
-
23)
- J.M. Kikkawa , D.D. Awschalom . Lateral drag of spin coherence in gallium arsenide. Nature , 139 - 141
-
24)
- J. Strand , B.D. Schultz , A.F. Isakovic , C.J. Palmstrom , P.A. Crowell . Dynamic nuclear polarization by electrical spin injection in ferromagnet-semiconductor heterostructures. Phys. Rev. Lett.
-
25)
- D.H. Hernando , Y.V. Nazarov , A. Brataas , G.E.W. Bauer . Conductance modulation by spin precession in noncollinear ferromagnet normal-metal ferromagnet systems. Phys. Rev. B, Condens. Matter , 5700 - 5712
-
26)
- A. Brataas , Y.V. Nazarov , G.E.W. Bauer . Finite-element theory of transport in ferromagnetnormal metal systems. Phys. Rev. Lett. , 2481 - 2484
-
1)
Related content
