Search results

Sort By:

Limit search:

Strong-Coupling Features in YB_6 and ZrB_{12} Studied by Point-Contact Spectroscopy

100%

Girovský J., Szabó P., Mori T., Samuely P.

issue 5

1042-1044

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.

Point Contact Spectroscopy Measurements of Ba(Fe_{0.96}Co_{0.04})_2As_2 Single Crystals

76%

Szabó P., Girovský J., Pribulová Z., Samuely T., Bud'ko S., Canfield P., Samuely P.

issue 5

1045-1046

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.

Refine search results

2 Acta Physica Polonica A

2 2010

2 Girovský J.

2 Samuely P.

2 Szabó P.

1 Bud'ko S.

1 Canfield P.

1 Mori T.

1 Pribulová Z.

1 Samuely T.

Search results

Strong-Coupling Features in YB_6 and ZrB_{12} Studied by Point-Contact Spectroscopy

Point Contact Spectroscopy Measurements of Ba(Fe_{0.96}Co_{0.04})_2As_2 Single Crystals