L. F. Rybal’chenko

activity

20152017

most citedPhonon singularities on volt-ampere curves of niobium point contacts

10 citations · 24 across the 20 of their papers we have counts for

collaborators

20 papers

cond-mat.supr-con2017

Critical current density in the superconducting ceramic $L a_{1.8} S r_{0.2} Cu O_{4}$ in S-c-N point contacts

I. K. Yanson, L. F. Rybal'chenko, N. L. Bobrov +1

Measurement of the current-voltage characteristics of point contacts makes it possible to study the properties of individual crystallites in a superconducting ceramic. The critical…

cond-mat.supr-con2017

Structure and physical properties of superconducting compounds Y(La)-Ba(Sr)-Cu-O

B. I. Verkin, B. B. Banduryan, A. S. Barylnik +35

The structure and physical properties of superconducting compounds Y(La)-Ba(Sr)-Cu-O are studied, the compounds being prepared by the method of cryogenic dispersion of a charge con…

cond-mat.supr-con2017

Reversible recovery of excess current in $Y (H o) - B a - C u - O$ -normal metal point contacts under high voltages

L. F. Rybal'chenko, V. V. Fisun, N. L. Bobrov +3

A polarity-dependent reversible change in the current-voltage characteristics between states corresponding to different values of the excess current $I_{e x c}$ is observed for b…

cond-mat.mes-hall2017★ 1 cited

Point-contact spectroscopy of tantalum, molybdenum, and tungsten

L. F. Rybal'chenko, I. K. Yanson, N. L. Bobrov +1

Electron-phonon interaction in superconducting transition metals (Ta, Mo, W) is investigated by the method of point-contact spectroscopy. The spectra obtained are compared with mod…

cond-mat.supr-con2017

"Internal" coherent effects in HTS-normal metal point contacts

L. F. Rybal'chenko, I. K. Yanson, V. V. Fisun +4

Electrical characteristics are measured in submicron YBaCuO-normal metal point contacts with a direct conductivity. In a microwave field, such contacts reveal a nonstationary Josep…

cond-mat.supr-con2017

Point-contact spectroscopy of superconducting YBaCuO single crystals of tetragonal modification

I. K. Yanson, L. F. Rybal'chenko, V. V. Fisun +3

The point-contact spectra of tetragonal $YB a_{2} C u_{3} O_{7 - δ}$ with $T_{c} = 50 - 60 K$ are studied at various temperatures. The single-electron energy ( $2 Δ_{0} / k T_{c} ≃ 17$ ) and its tem…

cond-mat.supr-con2017★ 1 cited

Point-contact spectroscopy of the high-temperature superconductor BiSrCaCuO

L. F. Rybal'chenko, V. V. Fisun, N. L. Bobrov +4

The maximum value of the energy gap $Δ ≃ 8 m e V$ and the ratio $2 δ / k T_{c} ≃ 2.5$ are determined for a high-temperature superconductor $B i_{2} S r_{2} CaC u_{2} O_{8 + y}$ by using poi…

cond-mat.supr-con2017

Point-contact studies of high-temperature superconductor $YB a_{2} C u_{3} O_{7 - δ}$

I. K. Yanson, L. F. Rybal'chenko, V. V. Fisun +5

Point-contacts formed by the high-temperature superconductor $YB a_{2} C u_{3} O_{7 - δ}$ prepared by cryochemical technique, and a noble metal Ag or Cu) are investigated. The maximum va…

cond-mat.supr-con2017

Excess conduction of YBaCuO point contacts between 100 and 200 K

L. F. Rybal'chenko, I. K. Yanson, N. L. Bobrov +6

$Y B a C u O - A g$ pressure point contacts with direct conduction are investigated. The excess (relative to the normal state) conductivity mainly caused by fluctuational pairing of electr…

cond-mat.supr-con2017★ 1 cited

Point contact spectroscopy of the high-temperature superconductor $L a_{1.8} S r_{0.2} C u O_{4}$

I. K. Yanson, L. F. Rybal'chenko, V. V. Fisun +7

The energy gap has been measured and the characteristic phonon energies determined for the superconducting compound $L a_{1.8} S r_{02} C u O_{4}$ from the current-voltage characteristics…

cond-mat.supr-con2016

Point-contact studies of semiconductor $P b T e - P b S$ superconducting superlattice as a model of HTS

N. L. Bobrov, L. F. Rybal'chenko, V. V. Fisun +6

Superconducting (SC) superlattices (SL) of the epitaxial semiconductor $P b T e - P b S$ /(001) $K C l$ with two-dimensional ordered misfit dislocation (MD) networks across heteroboundaries…

cond-mat.supr-con2016

Point-contact measurements of the energy gap of lead-chalcogenide-based superconducting superlattices

I. K. Yanson, N. L. Bobrov, L. F. Rybal'chenko +5

The energy gap of superconducting $P b T e - P b S$ semiconductor superlattices has been analyzed with the help of point contacts for the first time below the critical temperature, $T_{c}…

cond-mat.supr-con2016★ 10 cited

Phonon singularities on volt-ampere curves of niobium point contacts

I. K. Yanson, N. L. Bobrov, L. F. Rybal'chenko +1

The volt-ampere curves and their second derivatives were studied for niobium point contacts at low temperatures in the voltage range corresponding to the characteristic phonon ener…

cond-mat.supr-con2016★ 2 cited

Spectroscopy of phonons in dirty superconducting contacts

I. K. Yanson, N. L. Bobrov, L. F. Rybal'chenko +1

The nonlinearities of current-voltage characteristics (IVC) of superconducting niobium point contacts for voltages of the order of the characteristic phonon frequencies are investi…

cond-mat.supr-con2016★ 1 cited

Point-contact spectra of $2 H - N b S e_{2}$ in the superconducting state

N. L. Bobrov, L. F. Rybal'chenko, M. A. Obolenskii +1

A qualitative study of the electron-phonon interaction (EPI) spectra in $2 H - N b S e_{2}$ is carried out by the method of point-contact spectroscopy in the superconducting state. A…

cond-mat.supr-con2016

Investigation of the electron-phonon interaction in $N b_{3} S n$ with the aid of microcontacts

I. K. Yanson, N. L. Bobrov, L. F. Rybal'chenko +1

The method of microcontact spectroscopy in the superconducting state was used to investigate weak nonlinearities of the current-voltage characteristics of point contacts made of $N…

cond-mat.supr-con2016★ 3 cited

Reabsorption of nonequilibrium phonons at superconducting point contacts

I. K. Yanson, V. V. Fisun, N. L. Bobrov +1

When there is a deviation from the inequality $d ≪ l_{ε}$ ( $d$ is the contact diameter, and $l_{ε}$ is the energy relaxation length of the electrons)…

cond-mat.supr-con2015★ 2 cited

Point-contact spectroscopy of superconductors in the nonequilibrium state

I. K. Yanson, L. F. Rybal'chenko, N. L. Bobrov +1

A phase transition of the region of the superconductor near the point contact into a new nonequi- librium state at the critical density of nonequilibriumquasiparticles is observed.

cond-mat.supr-con2015★ 1 cited

Relaxation of nonequilibrium quasiparticles in a superconductor normal metal point contact

I. K. Yanson, N. L. Bobrov, L. F. Rybal'chenko +1

The point-contact spectra of tantalum in the superconducting state, with $T a$ , $C u$ , and $A u$ counterelectrodes, have been studied. We discovered some new distinctive features, who…

cond-mat.mes-hall2015★ 2 cited

Point-contact electron-phonon interaction function in tantalum

N. L. Bobrov, L. F. Rybal'chenko, V. V. Fisun +1

Tantalum is studied by the method of point-contact (PC) spectroscopy: the parameter $λ_{p c}$ and the absolute intensity of the PC EPI function are determined, and the form of t…

Critical current density in the superconducting ceramic La1.8​Sr0.2​CuO4​ in S-c-N point contacts

Structure and physical properties of superconducting compounds Y(La)-Ba(Sr)-Cu-O

Reversible recovery of excess current in Y(Ho)−Ba−Cu−O-normal metal point contacts under high voltages

Point-contact spectroscopy of tantalum, molybdenum, and tungsten

"Internal" coherent effects in HTS-normal metal point contacts

Point-contact spectroscopy of superconducting YBaCuO single crystals of tetragonal modification

Point-contact spectroscopy of the high-temperature superconductor BiSrCaCuO

Point-contact studies of high-temperature superconductor YBa2​Cu3​O7−δ​

Excess conduction of YBaCuO point contacts between 100 and 200 K

Point contact spectroscopy of the high-temperature superconductor La1.8​Sr0.2​CuO4​

Point-contact studies of semiconductor PbTe−PbS superconducting superlattice as a model of HTS

Point-contact measurements of the energy gap of lead-chalcogenide-based superconducting superlattices

Phonon singularities on volt-ampere curves of niobium point contacts

Spectroscopy of phonons in dirty superconducting contacts

Point-contact spectra of 2H−NbSe2​ in the superconducting state

Investigation of the electron-phonon interaction in Nb3​Sn with the aid of microcontacts

Reabsorption of nonequilibrium phonons at superconducting point contacts

Point-contact spectroscopy of superconductors in the nonequilibrium state

Relaxation of nonequilibrium quasiparticles in a superconductor normal metal point contact

Point-contact electron-phonon interaction function in tantalum

Critical current density in the superconducting ceramic $L a_{1.8} S r_{0.2} Cu O_{4}$ in S-c-N point contacts

Reversible recovery of excess current in $Y (H o) - B a - C u - O$ -normal metal point contacts under high voltages

Point-contact studies of high-temperature superconductor $YB a_{2} C u_{3} O_{7 - δ}$

Point contact spectroscopy of the high-temperature superconductor $L a_{1.8} S r_{0.2} C u O_{4}$

Point-contact studies of semiconductor $P b T e - P b S$ superconducting superlattice as a model of HTS

Point-contact spectra of $2 H - N b S e_{2}$ in the superconducting state

Investigation of the electron-phonon interaction in $N b_{3} S n$ with the aid of microcontacts