The results of the first experimental observation of the appearance of an electron–phonon interaction (EPI) on the current–voltage characteristics (IVC) of a superconductor–normal-metal point contact are reported. Features, corresponding to the characteristic EPI energies in the contacting metals, appear on the dependences of the excess current on the voltage and derivatives of the IVC. A correlation between the absolute value of the excess current and the maximum intensity of the microcontact EPI function of a heterocontact in the normal state is noted.
References
1
2
I. O.
Kulik
, A. N.
Omel’yanchuk
, and R. I.
Shekhter
, Fiz. Nizk. Temp
. 3
, 1543
(1977
) [Sov. J. Low Temp. Phys. 3
, 740 (1977)].3
V. A.
Khlus
and A. N. Omel’yanchuk, Fiz. Nizk. Temp
. 9
, 373
(1983
) [Sov. J. Low Temp. Phys. 9
, 189 (1983)].4
5
A. V.
Khotkevich
and I. K.
Yanson
, Fiz. Nizk. Temp
. 7
, 727
(1981
) [Sov. J. Low Temp. Phys. 7
, 354 (1981)].6
I. K.
Yanson
, N. L.
Bobrov
, L. F.
Rybal’chenko
, and V.V.
Fisun
, Fiz. Nizk. Temp
. 9
, 1155
(1983
) [Sov. J. Low Temp. Phys. 9
, 596 (1983)].7
P. N.
Chubov
, I. K.
Yanson
, and A. I.
Akimenko
, Fiz. Nizk. Temp
. 8
, 64
(1982
) [Sov. J. Low Temp. Phys. 8
, 32 (1982)].8
A. G. M.
Jansen
, F. M.
Mueller
, and P.
Wyder
, Phys. Rev. B
16
, 1325
(1977
).9
A. G.
Batrak
and I. K.
Yanson
, Fiz. Nizk. Temp
. 5
, 1404
(1979
) [Sov. J. Low Temp. Phys. 5
, 663 (1979)].10
R. I.
Shekhter
and I. O.
Kulik
, Fiz. Nizk. Temp
. 9
, 46
(1983
) [Sov. J. Low Temp. Phys. 9
, 22 (1983)].11
G. V.
Kamarchuk
, A. V.
Khotkevich
, and I. K.
Yanson
, “Excess current and the electron–phonon interaction in superconductor–normal-metal point contacts
,” in: Abstracts of Reports at the 2nd All-Union Seminar on the Metal Physics of Superconductors
, Kiev
(1983
), Pt. 1
, pp. 46
–47
.
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© 1984 American Institute of Physics.
1984
American Institute of Physics
