Study of electron–phonon interaction in nickel and iron by microcontact spectroscopy
A. A. LysykhPhysicotechnical Institute of Low Temperatures. Academy of Sciences of the Ukrainian SSR, Khar’kovI. K. YansonPhysicotechnical Institute of Low Temperatures. Academy of Sciences of the Ukrainian SSR, Khar’kovO. I. ShklarevskiiPhysicotechnical Institute of Low Temperatures. Academy of Sciences of the Ukrainian SSR, Khar’kovYu. G. NaĭdyukPhysicotechnical Institute of Low Temperatures. Academy of Sciences of the Ukrainian SSR, Khar’kov
ABI
Аннотация
Microcontact spectroscopy is used to obtain the electron–phonon interaction spectra of the ferromagnetic metals nickel and iron. The data obtained are compared to known phonon state density functions F(ω). The mean squares of the electron–phonon interaction matrix elements are calculated as functions of energy. The presence in the experiments of a “structural” broadening connected with imperfection of the metal structure in the microcontact region is noted.
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