TITLE

Current-induced phase transition in ballistic Ni nanocontacts

AUTHOR(S)
Gatiyatov, R. G.; Lisin, V. N.; Bukharaev, A. A.
PUB. DATE
March 2010
SOURCE
Applied Physics Letters;3/1/2010, Vol. 96 Issue 9, p093108
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Local phase transition from ferromagnetic to paramagnetic state in the region of the ballistic Ni nanocontacts (NCs) has been experimentally observed. We found that contact size reduction leads to an increase in the bias voltage at which the local phase transition occurs. Presented theoretical interpretation of this phenomenon takes into account the specificity of the local heating of the ballistic NC and describes the electron’s energy relaxation dependences on the applied voltage. The experimental data are in good qualitative and quantitative agreement with the theory proposed.
ACCESSION #
48428985

 

Related Articles

  • On a new type of sublattice tipping in noncollinear antiferromagnets. Marchenko, V. I.; Tikhonov, A. M. // JETP Letters;12/10/98, Vol. 68 Issue 11, p887 

    An explanation is offered for the 30° tipping of sublattices which has been observed in the noncollinear antiferromagnet CsMnI[sub 3]. In contrast to the ordinary 90° spin flop, this phase transition is due to nonlinear and relativistic corrections to the susceptibility. © 1998 American...

  • Domain nucleation in thermomagnetic memory systems near the Curie point. Khodenkov, G. E. // Technical Physics Letters;Aug98, Vol. 24 Issue 8, p628 

    The approximation of Landau second-order phase transitions for ferromagnetics near the Curie point is used for a numerical determination of the two-dimensional microstructure which forms the basis of a data-storage domain. This structure and its lower level of the spectrum of small oscillations...

  • Phase transition of the new ferromagnet Cd1-xMnxGeAs2 at high pressures (0.9-4.7 GPa). Mollaev, A.Yu.; Arslanov, R.K.; Zalibekov, U.Z.; Marenkin, S.F.; Novotortsev, V.M.; Mikhailov, S.G.; Molchanov, A.V. // Inorganic Materials;Jan2005, Vol. 41 Issue 1, p7 

    Pressure-dependent resistivity and Hall effect measurements indicate thatp- type Cd1 - xMnx GeAs2 solid solutions withx= 0.06 and 0.18 undergo a high-pressure semiconductor-metal transition. The characteristic points of the phase transition are located, and its dynamics is analyzed in terms of...

  • Behavior of the Dynamic Magnetic Susceptibility under Spontaneous Phase Transitions in Quasi-Uniaxial Ferromagnetic Films. Dikshte&icaron;n, I.E.; Lisovski&icaron;, F.V.; Mansvetova, E.G. // Journal of Experimental & Theoretical Physics;Jun2004, Vol. 98 Issue 6, p1152 

    Behavior of the magnetic susceptibility of quasi-uniaxial ferromagnetic films in the vicinity of the Curie point was studied with allowance for a periodic spatial inhomogeneity in the distribution of the magnetization vector for an arbitrary frequency ω of an external magnetic field. In the...

  • Thermodynamics of a Ladder Ferromagnet with Random Transverse Exchange. Timonin, P. N. // Physics of the Solid State;Oct2003, Vol. 45 Issue 10, p1935 

    A model of a ladder ferromagnet with Ising spins that consists of two ferromagnetic chains with interaction of nearest neighbors and a random interaction between the nearest spins of different chains is considered. For properly chosen parameters of the random interaction, the description of the...

  • Phase Transition Studies of BiMnO3: Mean Field Theory Approximations. K. B., Lakshmi Priya; Natesan, Baskaran // AIP Conference Proceedings;2015, Vol. 1665, p1 

    We studied the phase transition and magneto-electric coupling effect of BiMnO3 by employing mean field theory approximations. To capture the ferromagnetic and ferroelectric transitions of BiMnO3, we construct an extended Ising model in a 2D square lattice, wherein, the magnetic (electric)...

  • Suppression of the magnetic-permeability relaxation in nanocrystalline.... Allia, P.; Beatrice, C.; Vinai, F.; Knobel, M.; Turtelli, R. Sato // Applied Physics Letters;11/4/1991, Vol. 59 Issue 19, p2454 

    Examines the reversible relaxation of the initial magnetic permeability in ferromagnetic ribbons. Transformation from the amorphous phase to a nanocrystalline structure; Types of heat treatments performed; Transient temperature effects on the samples.

  • Magnetic and structural phase transitions in the shape-memory ferromagnetic alloys Ni[sub 2+x]Mn[sub 1-x]Ga. Bozhko, A. D.; Vasil’ev, A. N.; Khovaılo, V. V.; Dikshteın, I. E.; Koledov, V. V.; Seletskiı, S. M.; Tulaıkova, A. A.; Cherechukin, A. A.; Shavrov, V. G.; Buchel’nikov, V. D. // Journal of Experimental & Theoretical Physics;May99, Vol. 88 Issue 5, p954 

    The results of an experimental investigation of the temperature dependences of the magnetic susceptibility and resistivity in the shape-memory ferromagnetic alloys Ni[sub 2 + x]Mn[sub 1 - x]Ga (x = 0-0.20) are reported. A T - x phase diagram is constructed on the basis of these data. It is shown...

  • Neutron-diffraction study of a structural phase transition in the deuterated molecular ferromagnet Fe(dtc)[sub 2] Cl. Campo, J.; Luzón, J.; Palacio, F.; DeFotis, G.; Christophel, J.; Ressouche, E. // Applied Physics A: Materials Science & Processing;Dec2002 Supplement, Vol. 74 Issue 6, ps923 

    The nuclear structure of Fe(dtc)[sub 2]Cl, where dtc = diethyl-dithiocarbamate, is determined at several temperatures between 50 K and room temperature by high resolution powder neutron diffraction in a deuterated sample. Thermodiffractograms reveal that a structural transition extends over the...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics