Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Yanson, A. I."'
Publikováno v:
Fizika Nizkikh Temperatur, V.39, No.3, pp.360-366 (2013)
We present a study of the influence of an external magnetic field H and an electric current I on the spin-valve (SV) effect between a ferromagnetic thin film (F) and a sharp tip of a nonmagnetic metal (N). To explain our observations, we propose a mo
Externí odkaz:
http://arxiv.org/abs/1301.7635
Autor:
Yanson, I. K., Naidyuk, Yu. G., Balkashin, O. P., Fisun, V. V., Triputen, L. Yu., Andersson, S., Korenivski, V., Yanson, Yu. I., Zabel, H.
Hysteretic magneto-resistance of point contacts formed between non-magnetic tips and single ferromagnetic films exchange-pinned by antiferromagnetic films is investigated. The analysis of the measured current driven and field driven hysteresis agrees
Externí odkaz:
http://arxiv.org/abs/1002.0209
Autor:
Yanson, I. K., Shklyarevskii, O. I., Csonka, Sz., van Kempen, H., Speller, S., Yanson, A. I., van Ruitenbeek, J. M.
Publikováno v:
Phys. Rev. Lett. 95 (2005) 256806
Nanowires of different nature have been shown to self-assemble as a function of stress at the contact between two macroscopic metallic leads. Here we demonstrate for gold wires that the balance between various metastable nanowire configurations is in
Externí odkaz:
http://arxiv.org/abs/cond-mat/0508194
Autor:
Urban, D. F., Bürki, J., Yanson, A. I., Yanson, I. K., Stafford, C. A., van Ruitenbeek, J. M., Grabert, Hermann
Publikováno v:
Solid State Comm. 131, 609 (2004)
Experimental conductance histograms for Na nanowires are analyzed in detail and compared to recent theoretical results on the stability of cylindrical and elliptical nanowires, using the free-electron model. We find a one-to-one correspondence betwee
Externí odkaz:
http://arxiv.org/abs/cond-mat/0410286
We supplement our previous observations of the shell effect in alkali-metal nanowires (Li, Na, K) with data extended to the heavy alkalis Rb and Cs. Our observations include: i) a non-monotonous dependence of conductance-histogram peak heights on ato
Externí odkaz:
http://arxiv.org/abs/cond-mat/0405112
Autor:
Nielsen, S. K., Noat, Y., Brandbyge, M., Smit, R. H. M., Hansen, K., Chen, L. Y., Yanson, A. I., Besenbacher, F., van Ruitenbeek, J. M.
Publikováno v:
Phys. Rev. B 67, 245411 (2003)
The conductance of a single-atom contact is sensitive to the coupling of this contact atom to the atoms in the leads. Notably for the transition metals this gives rise to a considerable spread in the observed conductance values. The mean conductance
Externí odkaz:
http://arxiv.org/abs/cond-mat/0212062
Autor:
Untiedt, C., Yanson, A. I., Grande, R., Rubio-Bollinger, G., Agrait, N., Vieira, S., Van Ruitenbeek, J. M.
Publikováno v:
Phys. Rev. B 66 (2002) 085418
Using a scanning tunneling microscope or mechanically controllable break junctions it has been shown that it is possible to control the formation of a wire made of single gold atoms. In these experiments an interatomic distance between atoms in the c
Externí odkaz:
http://arxiv.org/abs/cond-mat/0202349
Publikováno v:
Phys. Rev. B 65, 235416 (2002)
We present a systematic study of the effect of the disorder in copper point contacts. We show that peaks in the conductance histogram of copper point contacts shift upon addition of nickel impurities. The shift increases initially linerarly with the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0201078
Publikováno v:
Phys. Rev. Lett. 87, 266102 (2001)
During the fracture of nanocontacts gold spontaneously forms freely suspended chains of atoms, which is not observed for the iso-electronic noble metals Ag and Cu. Au also differs from Ag and Cu in forming reconstructions at its low-index surfaces. U
Externí odkaz:
http://arxiv.org/abs/cond-mat/0106641
Publikováno v:
Phys. Rev. Lett., Vol. 87 (2001) 216805
After making a cold weld by pressing two clean metal surfaces together, upon gradually separating the two pieces a metallic nanowire is formed, which progressively thins down to a single atom before contact is lost. In previous experiments [1,2] we h
Externí odkaz:
http://arxiv.org/abs/cond-mat/0105216