Autor: Ishchenko, L. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Andreev Reflection Study of the Superconductor $Mo_3Sb_7$
Autorzy:: Dmitriev, V.
Rybaltchenko, L.
Khristenko, E.
Ishchenko, L.
Bukowski, Z.
Troć, R.
Powiązania:: https://bibliotekanauki.pl/articles/1812340.pdf
Data publikacji:: 2008-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.70.Ad
Opis:: The point-contact Andreev-reflection measurements on the new paramagnetic superconductor $Mo_3Sb_7$ were carried out. It was found that the order parameter ∆ is strongly anisotropic varying over a very wide range depending on the contact orientation when the maximum $∆_\text{max}$ exceeds at least 40 times the minimum $∆_\text{min}$ in spite of the invariable $T_c$ that cannot be typical of conventional superconductors. For these and other reasons we suggest that $Mo_3Sb_7$ is not a trivial BCS (s-wave) superconductor but rather has some unconventional pairing symmetry.
Źródło:: Acta Physica Polonica A; 2008, 114, 1; 263-267
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Superconductivity and Magnetism of $Dy_{1-x}Y_xRh_4B_4$: Candidate for Spin-Triplet Cooper Pairing
Autorzy:: Dmitriev, V.
Zaleski, A.
Khlybov, E.
Rybaltchenko, L.
Khristenko, E.
Ishchenko, L.
Terekhov, A.
Powiązania:: https://bibliotekanauki.pl/articles/1812277.pdf
Data publikacji:: 2008-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.70.Ad
Opis:: In this work for the first time we give the evidence that compound $Dy_{1-x}Y_x Rh_4B_4$ with the tetragonal body-centered crystal structure $LuRu_4B_4$ is the ferrimagnetic at temperatures $T_{Cur}$<40 K, ferrimagnetic superconductor at $T_C$ <10 K and antiferromagnetic superconductor at $T_N$ <3 K. No reentrant behavior was found down to T = 0.32 K. For the first time by means of a method of microcontact spectroscopy of the Andreev reflection in point contact$ Ag-Dy_{0.8}Y_{0.2}Rh_4B_4$ the value and temperature and field dependences of superconducting gap parameter∆(T, H) in $Dy_{0.8}Y_{0.2}Rh_4B_4$ were determined. The value of the ratio 2∆(0)/k$T_C$ is about 4. Some unusual features of∆(T, H) dependences were observed, which give the evidence that the $Dy_{1-x}Y_xRh_4B_4$ is a candidate for spin-triplet Cooper pairing of charges with the parallel spins.
Źródło:: Acta Physica Polonica A; 2008, 114, 1; 83-90
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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