TITLE

Magnetic-field-controlled noise-activated switching in a nonlinear three-terminal nanojunction

AUTHOR(S)
Hartmann, F.; Hartmann, D.; Kowalzik, P.; Gammaitoni, L.; Forchel, A.; Worschech, L.
PUB. DATE
February 2010
SOURCE
Applied Physics Letters;Feb2010, Vol. 96 Issue 8, p082108
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Magnetic-field-controlled switching of a nonlinear three-terminal nanojunction was studied. Noise-activated switching was observed, which depends sensitively on the strength of an external magnetic field. Such a functioning resembles a noise-activated nonlinear detector as proposed by Gammaitoni and Bulsara [Phys. Rev. Lett. 88, 230601 (2002)] for magnetic fields realized with a nanoelectronic device.
ACCESSION #
48352156

 

Related Articles

  • Multistable switching due to magnetic vortices pinned at artificial pinning sites. Rahm, M.; Stahl, J.; Wegscheider, W.; Weiss, D. // Applied Physics Letters;8/30/2004, Vol. 85 Issue 9, p1553 

    Magnetic vortices form the ground state in micron and submicron ferromagnetic disks. By inserting artificial defects (antidots) into a submicron ferromagnetic disk, magnetic vortices can be pinned controllably thus enabling a different way for magnetic switching. We show that by inserting n...

  • Demonstration of multilevel cell spin transfer switching in MgO magnetic tunnel junctions. Xiaohua Lou; Zheng Gao; Dimitrov, Dimitar V.; Tang, Michael X. // Applied Physics Letters;12/15/2008, Vol. 93 Issue 24, p242502 

    Multilevel cell is an important concept to improve the density of spin transfer torque memory. We demonstrated two-bit multilevel cell spin transfer switching using MgO-based magnetic tunnel junctions. Two types of cell structural design are discussed. Multiple resistance levels are depicted in...

  • Switching of saturation magnetization by carrier injection in YBa2Cu3O7-δ/α-Fe2O3/Nb-SrTiO3 junctions. Yuansha Chen; Guijun Lian; Guangcheng Xiong; Venkatesan, T. // Applied Physics Letters;6/6/2011, Vol. 98 Issue 23, p232513 

    Ferromagnetic (FM) α-Fe2O3 layers were deposited on n-type oxide semiconductor substrates of Nb-doped SrTiO3 (NSTO) to form YBa2Cu3O7-δ/α-Fe2O3/NSTO junctions. Multilevel resistance switching behavior was observed in YBa2Cu3O7-δ/α-Fe2O3/NSTO junctions with stable resistive states....

  • Giant reversible magnetocaloric effect in cobalt hydroxide nanoparticles. Liu, X. H.; Liu, W.; Hu, W. J.; Guo, S.; Lv, X. K.; Cui, W. B.; Zhao, X. G.; Zhang, Z. D. // Applied Physics Letters;11/17/2008, Vol. 93 Issue 20, p202502 

    The magnetocaloric effect associated with magnetic phase transitions in β-Co(OH)2 nanoparticles has been investigated. A sign change in the magnetocaloric effect is induced by a magnetic field, which is related to a field-induced transition from the antiferromagnetic to the ferromagnetic...

  • Electrostatic spin crossover effect in polar magnetic molecules. Baadji, Nadjib; Piacenza, Manuel; Tugsuz, Tugba; Sala, Fabio Della; Maruccio, Giuseppe; Sanvito, Stefano // Nature Materials;Oct2009, Vol. 8 Issue 10, p813 

    The magnetic configuration of a nanostructure can be altered by an external magnetic field, by spin-transfer torque or by its magnetoelastic response. Here, we explore an alternative route, namely the possibility of switching the sign of the exchange coupling between two magnetic centres by...

  • Onset of Spin-Incoherent Transport in a Quantum Wire. Hew, W. K.; Thomas, K. J.; Pepper, M.; Farrer, I.; Anderson, D.; Jones, G. A. C.; Ritchie, D. A. // AIP Conference Proceedings;1/4/2010, Vol. 1199 Issue 1, p343 

    We present transport measurements of a weakly-confined quantum wire showing evidence of spin-incoherent transport at low carrier densities. In this transport régime, spin modes are generally reflected, suppressing the conductance of the channel by a factor of two. We observe precisely such a...

  • Magnetic-field dependence of spin waves in ordered permalloy nanowire arrays in two dimensions. Liu, H. Y.; Wang, Z. K.; Lim, H. S.; Ng, S. C.; Kuok, M. H.; Lockwood, D. J.; Cottam, M. G.; Nielsch, K.; Gösele, U. // Journal of Applied Physics;8/15/2005, Vol. 98 Issue 4, p046103 

    The longitudinal magnetic-field dependence of quantized spin waves in ordered permalloy nanowire arrays in two dimensions (2D) has been studied by Brillouin spectroscopy. The results were analyzed on the basis of collective spin waves in a hexagonal 2D nanowire array and compared with the...

  • Enhancement of magnetoresistance in [Pd/Co]N/Cu/Co/[Pd/Co]N/FeMn spin valves. Joo, H. W.; An, J. H.; Lee, M. S.; Choi, S. D.; Lee, K. A.; Kim, S. W.; Lee, S. S.; Hwang, D. G. // Journal of Applied Physics;4/15/2006, Vol. 99 Issue 8, p08R504 

    The dependences of the stack number and Co and Cu thicknesses on magnetoresistance, and perpendicular exchange biasing in the [Pd/Co]×N1/Cu/Co/[Pd/Co]×N2/FeMn spin valves, were investigated. The magnetoresistance ratio of the spin valves with N1=4 and N2=2 was above 5% for the Cu between...

  • Zitterbewegung of electrons and holes in carbon nanotubes. Zawadzki, Wlodek // AIP Conference Proceedings;2007, Vol. 893 Issue 1, p1025 

    It is shown that the band structure of single-wall semiconducting carbon nanotubes (CNT) is analogous to relativistic description of electrons in vacuum, with the maximum velocity u= 108cm/s replacing the light velocity. One-dimensional semirelativistic kinematics and dynamics of electrons in...

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