280 citations · 705 across the 7 of their papers we have counts for
8 papers
Al substitution in MgB2 crystals: influence on superconducting and structural properties
J. Karpinski, N. D. Zhigadlo, G. Schuck +11
Single crystals of Mg1-xAlxB2 have been grown at a pressure of 30 kbar using the cubic anvil technique. Precipitation free crystals with x < 0.1 were obtained as a result of optimi…
A Point-Contact Study of the Superconducting Gaps in Al-Substituted and C-Substituted MgB_2 Single Crystals
R. S. Gonnelli, D. Daghero, G. A. Ummarino +6
We present the results of directional point-contact spectroscopy in state-of-the-art Mg_{1-x}Al_xB_2 and Mg(B_{1-y}C_{y})_2 single crystals produced at ETH, Zurich. Fitting the con…
Carbon substitution in MgB2 single crystals: structural and superconducting properties
S. M. Kazakov, R. Puzniak, K. Rogacki +6
Growth of carbon substituted magnesium diboride Mg(B1-xCx)2 single crystals with 0<x<0.15 is reported and the structural, transport, and magnetization data are presented. The super…
Strongly enhancend anisotropic upper critical field in carbon substituted MgB2: impact of Fermi surface changes
R. Puzniak, M. Angst, A. Szewczyk +3
The upper critical field Hc2||c(0) of 85 kOe in Mg(B0.94C0.06)2 single crystals, determined from torque measurements, is more than twice as large as that one of 31 kOe in unsubstit…
Observation of vortex structure in MgB single crystals by Bitter decoration technique
L. Ya. Vinnikov, J. Karpinski, S. M. Kazakov +4
We report the observation of superconducting vortices in pure and lightly Al doped MgB single crystals. Low field experiments allow for the estimation of the London penetration…
Scanning Tunneling Spectroscopy on Single Crystal MgB2
M. R. Eskildsen, M. Kugler, G. Levy +5
We report on the results of scanning tunneling spectroscopy measurements on single crystals of Mg2. Tunneling was performed both parallel and perpendicular to the crystalline c-axi…