Wszystkie pola: Bukowski, R - 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:: Anisotropy of Magnetic and Transport Properties οf $UAuSb_2$ Single Crystals
Autorzy:: Troć, R.
Bukowski, Z.
Stępień-Damm, J.
Sułkowski, C.
Powiązania:: https://bibliotekanauki.pl/articles/1810449.pdf
Data publikacji:: 2009-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.20.Lp
71.27.+a
75.30.Gw
Opis:: The uranium-gold diantimonide $UAuSb_2$ belongs to a numerous family of ternary compounds crystallizing in a tetragonal structure of the $HfCuSi_2$-type (space group P4/nmm). In this paper the results of magnetization, electrical resistivity and thermopower measured along the main crystallographic directions are reported. Two magnetic transitions, a ferromagnetic one at $T_C$ =31 K and probably an antiferromagnetic one at $T_N$ = 43 K were found. The spontaneous magnetization at 1.9 K amounts about 0.8 $μ_B$ for B ∥ c-axis. Electrical resistivity for j ⊥ c-axis exhibits a $T^2$ exp(-Δ/kT) dependence at low temperatures and a Kondo effect at higher temperatures above $T_N$. The thermopower S for both main crystallographic directions shows a maximum at the temperature close to $T_C$ and the lack of any anomaly at $T_N$.
Źródło:: Acta Physica Polonica A; 2009, 115, 1; 181-184
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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