TITLE

Spin-coherent transport in ferromagnetically contacted carbon nanotubes

AUTHOR(S)
Zhao, B.; Mo¨nch, I.; Vinzelberg, H.; Mu¨hl, T.; Schneider, C. M.
PUB. DATE
April 2002
SOURCE
Applied Physics Letters;4/29/2002, Vol. 80 Issue 17, p3144
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The spin-coherent quantum transport through multiwall carbon nanotubes contacted by ferromagnetic Co pads is investigated experimentally. At 4.2 K, the devices show a remarkable increase of the magnetoresistance (MR) ratio with decreasing junction bias, reaching a maximum MR ratio of 30% at a junction bias current of 1 nA. The experimental results suggest the transport to be dominated by spin-dependent tunneling processes at the Co/nanotube interfaces and governed by the local magnetization. We also observe an asymmetry of the magnetoresistance peak position and width which is attributed to a local exchange biasing in the electrode material. © 2002 American Institute of Physics.
ACCESSION #
6540269

 

Related Articles

  • Effect of magnetic coupling on the magnetoresistive properties in La[sub 0.67]Sr[sub 0.33]MnO[sub 3]/BaFe[sub 11.3](ZnSn)[sub 0.7]O[sub 19] composites. Huang, Q.; Li, J.; Huang, X. J.; Ong, C. K.; Gao, X. S. // Journal of Applied Physics;9/15/2001, Vol. 90 Issue 6 

    The La[sub 0.67]Sr[sub 0.33]MnO[sub 3]/BaFe[sub 11.3](ZnSn)[sub 0.7]O[sub 19] (LSMO/BaM) composites have been prepared by cosintering the LSMO and the BaM powders. The microstructural, magnetic, and magnetoresistive (MR) properties of those systems were systematically studied. Due to the...

  • Influence of crystal structure on the magnetoresistance of Co/Cu multilayers. Dang, K. Le; Veillet, P. // Applied Physics Letters;7/5/1993, Vol. 63 Issue 1, p108 

    Examines the effect of the crystal structure on the magnetoresistance of cobalt/copper (Cu) multilayers. Reflection of low-frequency wing on general structural disorder in buffer layers; Correlation between nuclear magnetic resonance (MR) data and saturation magnetoresistance; Effects of iron...

  • 13C NMR investigations of the metallic state of Li intercalated carbon nanotubes. Schmid, M.; Goze-Bac, C.; Mehring, M.; Roth, S.; Bernier, P. // AIP Conference Proceedings;2003, Vol. 685 Issue 1, p131 

    13C Nuclear Magnetic Resonance measurements were performed on pristine and lithium intercalated single wall carbon nanotubes (SWNT). We investigated the NMR signatures by means of static and high resolution Magic Angle Spinning experiments. This allows us to measure in detail the modifications...

  • NMR investigations of hydrogen in carbon nanotubes. Schmid, M.; Goze-Bac, C.; Krämer, S.; Mehring, M.; Roth, S.; Bernier, P. // AIP Conference Proceedings;2002, Vol. 633 Issue 1, p593 

    We report proton nuclear magnetic resonance ([SUP1]H-NMR) measurements on hydrogen loaded single walled carbon nanotubes. The carbon nanotubes were produced with different kinds of catalysts and hydrogen loaded under 23 bar hydrogen pressure. The hydrogen adsorption properties of the carbon...

  • Modular construction of DNA nanotubes of tunable geometry and single- or double-stranded character. Aldaye, Faisal A.; Pik Kwan Lo; Karam, Pierre; McLaughlin, Christopher K.; Cosa, Gonzalo; Sleiman, Hanadi F. // Nature Nanotechnology;Jun2009, Vol. 4 Issue 6, p349 

    DNA nanotubes can template the growth of nanowires, orient transmembrane proteins for nuclear magnetic resonance determination, and can potentially act as stiff interconnects, tracks for molecular motors and nanoscale drug carriers. Current methods for the construction of DNA nanotubes result in...

  • NMR and NQR parameters of the SiC-doped on the (4,4) armchair single-walled BPNT: a computational study. Baei, Mohammad; Sayyad-Alangi, S.; Moradi, Ali; Torabi, Parviz // Journal of Molecular Modeling;Mar2012, Vol. 18 Issue 3, p881 

    The structural properties, NMR and NQR parameters in the pristine and silicon carbide (SiC) doped boron phosphide nanotubes (BPNTs) were calculated using DFT methods (BLYP, B3LYP/6-31G*) in order to evaluate the influence of SiC-doped on the (4,4) armchair BPNTs. Nuclear magnetic resonance (NMR)...

  • Correlation between diamagnetic susceptibility and electron spin resonance feature for various multiwalled carbon nanotubes. Bandow, S.; Numao, S.; Jinno, M.; Hirahara, K.; Iijima, S. // Applied Physics A: Materials Science & Processing;Apr2007, Vol. 87 Issue 1, p13 

    Determination of the structural features is a fundamental subject in nanotube research. A simple method is proposed to evaluate the structure of multiwalled carbon nanotubes (MWNTs) having either the concentric or the scrolled structure. Although transmission electron microscopy and Raman...

  • High-resolution 13C nuclear magnetic resonance evidence of phase transition of Rb,Cs-intercalated single-walled nanotubes. Bouhrara, M.; Saih, Y.; Wågberg, T.; Goze-Bac, C.; Abou-Hamad, E. // Journal of Applied Physics;Sep2011, Vol. 110 Issue 5, p054306 

    We present 13 C high-resolution magic-angle-turning (MAT) and magic angle spinning nuclear magnetic resonance data of Cs and Rb intercalated single walled carbon nanotubes. We find two distinct phases at different intercalation levels. A simple charge transfer is applicable at low intercalation...

  • Electromagnetic wave reflection from Fe/Cr nanostructures. Ustinov, V. V.; Rinkevich, A. B.; Romashev, L. N.; Kuznetsov, E. A. // Technical Physics Letters;Sep2007, Vol. 33 Issue 9, p771 

    The reflection of electromagnetic waves in the millimeter wave band from Fe/Cr nanostructures has been studied. It is established that the giant magnetoresistance (GMR) in the nanostructure leads to an increase in the reflection and a decrease in the transmission of microwaves, while the...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics