Wszystkie pola: P-point - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Point-Contact Spectroscopy of Superconducting $MgCNi_3$ Single Crystals
Autorzy:: Pribulová, Z.
Szabó, P.
Kačmarčík, J.
Samuely, P.
Jang, D.
Lee, H.
Lee, S.
Powiązania:: https://bibliotekanauki.pl/articles/1813611.pdf
Data publikacji:: 2008-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.50.+r
Opis:: The first point-contact spectroscopy measurements on $MgCNi_3$ single crystals of very good quality are presented. The measurements have been performed in the temperature range from 1.5 K up to 10 K and at magnetic fields up to 6 T. The superconducting energy gap Δ of the system is found to be scattered between 1 and 1.2 meV which gives the 2Δ/k $T_c$ ratio between BCS weak-coupling value of ~3.5 and a strong coupling of about 4.2. The excess current evaluated in magnetic field indicates the presence of a single energy gap.
Źródło:: Acta Physica Polonica A; 2008, 113, 1; 215-218
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Strong-Coupling Features in $YB_6$ and $ZrB_{12}$ Studied by Point-Contact Spectroscopy
Autorzy:: Girovský, J.
Szabó, P.
Mori, T.
Samuely, P.
Powiązania:: https://bibliotekanauki.pl/articles/1535414.pdf
Data publikacji:: 2010-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.50.+r
74.70.Ad
74.62.Dh
Opis:: Point-contact spectroscopy studies of the superconducting energy gap and the electron-phonon coupling mechanism are performed on the boron rich $YB_6$ and $ZrB_{12}$ single crystals. The obtained values of the superconducting energy gaps suggest the strong coupling with 2 Δ/$k_{B}T_{c}$≈ 4.2 for $YB_6$ and 2 Δ/$k_{B}T_{c}$≈ 4.15 for $ZrB_{12}$. We have observed the dominant soft phonon modes mediating superconductivity in the both samples at energy ≈ 8 meV for $YB_6$ and ≈ 11 meV in $ZrB_{12}$, respectively.
Źródło:: Acta Physica Polonica A; 2010, 118, 5; 1042-1044
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Point Contact Spectroscopy Measurements of $Ba(Fe_{0.96}Co_{0.04})_2As_2$ Single Crystals
Autorzy:: Szabó, P.
Girovský, J.
Pribulová, Z.
Samuely, T.
Bud'ko, S.
Canfield, P.
Samuely, P.
Powiązania:: https://bibliotekanauki.pl/articles/1535447.pdf
Data publikacji:: 2010-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.50.+r
74.70.Ad
74.62.Dh
Opis:: Point contact spectroscopy results are presented on the electron underdoped $Ba(Fe_{0.96}Co_{0.04})_2As_2$ single crystals. Two superconducting energy gaps with coupling values 2 $Δ_1$ ∿ $kT_{c}$ ≈ 2.55 and 2 $Δ_2$ ∿ $kT_{c}$ ≈ 11 at $T_{c}$ = 15.5 K have been observed in the point contact spectra. The temperature dependence of the normal state background of the point contact spectra observed between $T_{c}$ and $T_{N}$ indicates antiferromagnetic origin of the V-shaped minimum at zero bias.
Źródło:: Acta Physica Polonica A; 2010, 118, 5; 1045-1046
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja