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19972023
most citedSpatially Resolved Raman Spectroscopy of Single- and Few-Layer Graphene

2.5k citations

Showing 2003 · cond-mat.supr-conShow all

12 papers · 2 filters

cond-mat.supr-con2003★ 13 cited

Point-Contact Spectroscopy in MgB_2: from Fundamental Physics to Thin-Film Characterization

R. S. Gonnelli, D. Daghero, A. Calzolari +9

In this paper we highlight the advantages of using point-contact spectroscopy (PCS) in multigap superconductors like MgB_2, both as a fundamental research tool and as a non-destruc…

cond-mat.supr-con2003★ 42 cited

The Magnetic-field Dependence of the Gaps in a Two-band Superconductor: A Point-contact Study of MgB_2 Single Crystals

R. S. Gonnelli, D. Daghero, A. Calzolari +6

We present the results of directional point-contact measurements in MgB_2 single crystals, in magnetic fields up to 9 T parallel to the c axis. By fitting the conductance curves of…

cond-mat.supr-con2003★ 3 cited

Unusual magnetic field-induced phase transition in the mixed state of superconducting NbSe2

A. V. Sologubenko, I. L. Landau, H. R. Ott +3

The thermal conductivity κin the basal plane of single-crystalline hexagonal NbSe2 has been measured as a function of magnetic field H, oriented both along and perpendicular to the…

cond-mat.supr-con2003★ 18 cited

Absence of a boron isotope effect in the magnetic penetration depth of MgB

D. Di Castro, M. Angst, D. G. Eshchenko +11

The magnetic penetration depth in polycrystalline MgB for different boron isotopes (B/B) was investigated by transverse field muon spin rotation. No boro…

cond-mat.supr-con2003

Ambivalence of the anisotropy of the vortex lattice in an anisotropic type-II superconductor

I. L. Landau, A. V. Sologubenko, H. R. Ott

We present a geometry-based discussion of possible vortex configurations in the mixed state of anisotropic type-II superconductors. It is shown that, if energy considerations assig…

cond-mat.supr-con2003★ 3 cited

Directional point-contact spectroscopy of MgB2 single crystals in magnetic fields: two-band superconductivity and critical fields

R. S. Gonnelli, D. Daghero, G. A. Ummarino +6

The results of the first directional point-contact measurements in MgB2 single crystals, in the presence of magnetic fields up to 9 T either parallel or perpendicular to the ab pla…

cond-mat.supr-con2003★ 26 cited

Effects of proton irradiation and ageing on the superconducting properties of single crystalline and polycrystalline MgB2

G. K. Perkins, Y. Bugoslavsky, A . D. Caplin +7

We present magnetisation data on crystalline and polycrystalline MgB2 before and after irradiation with ~1MeV protons. In the virgin crystal the critical current density is below o…

cond-mat.supr-con2003★ 1 cited

Anisotropic properties of MgB2 by torque magnetometry

M. Angst, D. Di Castro, R. Puzniak +6

Anisotropic properties of superconducting MgB2 obtained by torque magnetometry are compared to theoretical predictions, concentrating on two issues. Firstly, the angular dependence…

cond-mat.supr-con2003★ 15 cited

Single crystal growth and properties of MgB2 and Mg(B1-xCx)2

S. M. Kazakov, J. Karpinski, J. Jun +4

Single crystals of MgB2 and Mg(B1-xCx)2 have been grown using cubic anvil technique. Tc values vary in a wide range (39-9 K) with carbon content varying from 0 up to 16%. Using SiC…

cond-mat.supr-con2003★ 62 cited

Determination of the Fermi Surface of MgB by the de Haas-van Alphen effect

A. Carrington, P. J. Meeson, J. R. Cooper +8

We report measurements of the de Haas-van Alphen effect for single crystals of MgB, in magnetic fields up to 32 Tesla. In contrast to our earlier work, dHvA orbits from all fou…

cond-mat.supr-con2003★ 11 cited

MgB2 and Mg1-xAlxB2 single crystals: high-pressure growth and physical properties

J. Karpinski, S. M. Kazakov, J. Jun +4

Single crystals of MgB2 have been grown with a high-pressure cubic anvil technique. They grow via the peritectic decomposition of the MgNB9 ternary nitride. The crystals are of a s…

cond-mat.supr-con2003★ 66 cited

Single crystal growth of MgB2 and thermodynamics of Mg-B-N system at high pressure

J. Karpinski, S. M. Kazakov, J. Jun +4

Single crystals of MgB2 have been grown at high pressure via the peritectic decomposition of MgNB9. The crystals are of a size up to 1.5x0.9x0.2 mm3 with a weight up to 0.23 mg, an…