Abstract
This chapter reports the study of electron conduction in metallic constrictions, with sizes in the atomic range. First, a novel technique for the fabrication of nano-constrictions at room temperature in metallic materials will be presented, based on the potentialities that the dual-beam equipment offers. We will show that it is possible to create atomic-sized constrictions inside the vacuum chamber where the sample is fabricated. Second, this method has been used for experiments in a magnetic metal such as iron, where phenomena such as ballistic magnetoresistance and ballistic anisotropic magnetoresistance have been investigated.
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References
N. García, C. Hao, L. Yonghua, M. Muñoz, Y. Chen, Z. Cui, Z. Lu, Y. Zhou, G. Pan, A.A. Pasa, Magnetoresistance in thin permalloy film (10 nm thick and 30–200 nm wide) nanocontacts fabricated by e-beam lithography. Appl. Phys. Lett. 89, 083112 (2006)
P. Krzysteczko, G. Dumpich, Magnetoresistance of Co nanoconstrictions fabricated by means of electron beam lithography. Phys. Rev. B 77, 144422 (2008)
T. Huang, K. Perzlaimer, C.H. Back, In situ magnetoresistance measurements of ferromagnetic nanocontacts in the Lorentz transmission electron microscope. Phys. Rev. B 79, 024414 (2009)
O. Céspedes, S.M. Watts, J.M. Coey, K. Dörr, M. Ziese, Magnetoresistance and electrical hysteresis in stable half-metallic La0.7Sr0.3 MnO3 and Fe3O4 nanoconstrictions. Appl. Phys. Lett. 87, 083102 (2005)
S. Khizroev, Y. Hijazi, R. Chomko, S. Mukherjee, R. Chantell, X. Wu, R. Carley, D. Litvinov, Focused-ion-beam-fabricated nanoscale magnetoresistive ballistic sensors. Appl. Phys. Lett. 86, 042502 (2005)
I.V. Roshchin, J. Yu, A.D. Kent, G.W. Stupian, M.S. Leung, Magnetic properties of Fe microstructures with focused ion beam-fabricated nano-constrictions. IEEE Trans. Magn. Mat. 37, 2101 (2001)
N. Agraït, A.L. Yeyati, J.M. Van Ruitenbeek, Quantum properties of atomic-sized conductors. Phys. Rep. 377, 81 (2003)
C. Sirvent, J.G. Rodrigo, S. Vieira, N. JurczyszynMingo, F. Flores, Conductance step for a single-atom contact in the scanning tunneling microscope: noble and transition metals. Phys. Rev. B 53, 16086 (1996)
E. Scheer, N. Agraït, J.C. Cuevas, A.L. Yeyati, B. Ludoph, A. Martín-Rodero, G.R. Bollinger, J.M. van Ruitenbeek, C. Urbina, The signature of chemical valence in the electrical conduction through a single-atom contact. Nature 394, 154 (1998)
J.J. Palacios, A.J. Pérez-Jiménez, E. Louis, E. SanFabián, J.A. Vergués, First-principles approach to electrical transport in atomic-scale nanostructures. Phys. Rev. B 66, 035322 (2002)
A. Hasmy, A.J. Pérez-Jiménez, J.J. Palacios, P. García-Mochales, J.L. Costa-Kramers, M. Díaz, E. Medina, P.A. Serena, Ballistic resistivity in aluminum nanocontacts. Phys. Rev. B 72, 245405 (2005)
F. Pauly, M. Dreher, J.K. Viljas, M. Häfner, J.C. Cuevas, P. Nielaba, Theoretical analysis of the conductance histograms and structural properties of Ag, Pt, and Ni nanocontacts. Phys. Rev. B 74, 235106 (2006)
D.R. Strachan, D.E. Johnston, B.S. Guitom, S.S. Datta, P.K. Davies, D.A. Bonell, A.T.C. Johnson, Real-time TEM imaging of the formation of crystalline nanoscale gaps. Phys. Rev. Lett. 100, 056805 (2008)
L. Giannuzzi, F. Stevie, Introduction to Focused Ion Beams: Instrumentation, Techniques, Theory and Practices (Springer Science Business Media, Boston, 2005)
J.G. Simmons, Generalized formula for the electric tunnel effect between similar electrodes separated by a thin insulating film. J. Appl. Phys. 34, 1793 (1963)
H.B. Michaelson, The work function of the elements and its periodicity. J. Appl. Phys. 48, 4729 (1977)
K. Hansen, S.K. Nielsen, M. Brandbyge, E. Laegsgaard, I. Stensgaard, F. Besenbacher, Current-voltage curves of gold quantum point contacts revisited. Appl. Phys. Lett. 77, 708 (2000)
K. Hansen, S.K. Nielsen, E. Laegsgaard, I. Stensgaard, F. Besenbacher, Fast and accurate current-voltage curves of metallic quantum point contacts. Rev. Sci. Instrum. 71, 1793 (2000)
A. Fernández-Pacheco et al., Nanotechnology 19, 415302 (2008) (for more processes and http://iopscience.iop.org/0957-4484/19/41/415302/media for a video of the formation of a constriction)
J.S. Moodera, G. Mathon, Spin polarized tunneling in ferromagnetic junctions. J. Magn. Mag. Mat. 200, 248 (1999)
M. Viret, M. Gauberac, F. Ott, C. Fermon, C. Barreteau, G. Autes, R. Guirado López, Giant anisotropic magneto-resistance in ferromagnetic atomic contacts. Eur. Phys. J. B 51, 1 (2006)
A. Sokolov, C. Zhang, E.Y. Tsymbal, J. Redepenning, B. Doudin, Quantized magnetoresistance in atomic-size contacts. Nat. Nanotechnol. 2, 171 (2007)
J. Velev, R.F. Sabirianov, S.S. Jaswal, E.Y. Tsymbal, Ballistic anisotropic magnetoresistance. Phys. Rev. Lett. 94, 127203 (2005)
D. Jacob, J. Fernández-Rossier, J.J. Palacios, Anisotropic magnetoresistance in nanocontacts. Phys. Rev. B 77, 165412 (2008)
V. Oboňa , J.M. de Teresa, R. Córdoba, A. Fernández-Pacheco, M.R. Ibarra, Creation of stable nanoconstrictions in metallic thin films via progressive narrowing by focused-ion-beam technique and in situ control of resistance. Micr. Eng. 86, 639 (2009)
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Fernandez-Pacheco, A. (2011). Conduction in Atomic-Sized Magnetic Metallic Constrictions Created by FIB. In: Studies of Nanoconstrictions, Nanowires and Fe₃O₄ Thin Films. Springer Theses. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-15801-8_4
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DOI: https://doi.org/10.1007/978-3-642-15801-8_4
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