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20012013
most citedCurrent percolation and anisotropy in polycrystalline MgB

145 citations · 716 across the 18 of their papers we have counts for

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cond-mat.supr-con2013★ 98 cited

Effects of Neutron Irradiation on Pinning Force Scaling in State-of-the-Art Nb3Sn Wires

T. Baumgartner, M. Eisterer, H. W. Weber +3

We present an extensive irradiation study involving five state-of-the-art Nb3Sn wires which were subjected to sequential neutron irradiation up to a fast neutron fluence of 1.6 * 1…

cond-mat.supr-con2013★ 29 cited

Stress dependence of the critical currents in neutron irradiated (RE)BCO coated conductors

J. Emhofer, M. Eisterer, H. W. Weber

The application of HTS coated conductors in future fusion or accelerator magnets is currently of increasing interest. High Lorentz forces and therefore high hoop stresses act on th…

cond-mat.supr-con2011★ 5 cited

Rotating sample magnetometer for cryogenic temperatures and high magnetic fields

M. Eisterer, F. Hengstberger, C. S. Voutsinas +4

We report on the design and implementation of a rotating sample magnetometer (RSM) operating in the variable temperature insert of a cryostat equipped with a high-field magnet. The…

cond-mat.supr-con2011★ 34 cited

Anisotropic critical currents in FeSe0.5Te0.5 films and the influence of neutron irradiation

M. Eisterer, R. Raunicher, H. W. Weber +5

We report on measurements of the superconducting properties of FeSe05Te05 thin films grown on lanthanum aluminate. The films have high transition temperatures (above 19 K) and shar…

cond-mat.supr-con2010★ 50 cited

Experimental evidence for a two-band superconducting state of NbSe2 single crystals

M. Zehetmayer, H. W. Weber

We report on measurements and a detailed analysis of the reversible magnetization of superconducting NbSe2 single crystals. By comparing the experimental data with Ginzburg Landau…

cond-mat.supr-con2010

Effects of high pressure on the physical properties of MgB2

T. Prikhna, W. Gawalek, Ya. Savchuk +27

The synthesis of MgB2-based materials under high pressure gave the possibility to suppress the evaporation of magnesium and to obtain near theoretically dense nanograined structure…

cond-mat.supr-con2010★ 32 cited

Thickness dependence of the critical current density in superconducting films: a geometrical approach

F. Hengstberger, M. Eisterer, H. W. Weber

We analyze the influence of the magnetic field generated by the supercurrents (self-field) on the current density distribution by numerical simulations. The thickness of the superc…

cond-mat.supr-con2009

Nanostructural Superconducting Materials for Fault Current Limiters and Cryogenic Electrical Machines

T. A. Prikhna, W. Gawalek, Ya. M. Savchuk +27

Materials of the Y-Ba-Cu-O (melt-textured YBa2Cu3O7-d-based materials or MT-YBCO) and Mg-B-O (MgB2-based materials) systems with high superconducting performance, which can be atta…

cond-mat.supr-con2009★ 16 cited

Effect of higher borides and inhomogeneity of oxygen distribution on critical current density of undoped and doped magnesium diboride

T. A. Prikhna, W. Gawalek, V. M. Tkach +22

The effect of doping with Ti, Ta, SiC in complex with synthesis temperature on the amount and distribution of structural inhomogeneities in MgB2 matrix of high-pressuresynthesized-…

cond-mat.supr-con2009★ 3 cited

Disorder Induced Effects on the Critical Current Density of Iron Pnictide BaFe_1.8 Co_0.2 As_2 single crystals

M. Zehetmayer, M. Eisterer, H. W. Weber +6

Investigating the role of disorder in superconductors is an essential part of characterizing the fundamental superconducting properties as well as assessing potential applications…

cond-mat.supr-con2009★ 1 cited

Consequences of the peculiar intrinsic properties of MgB2 on its macroscopic current flow

M. Eisterer, H. W. Weber

The influence of two important features of magnesium diboride on the macroscopic transport properties of polycrystalline MgB2 is discussed in the framework of a percolation model.…

cond-mat.supr-con2009★ 45 cited

Neutron irradiation of coated conductors

M. Eisterer, R. Fuger, M. Chudy +2

Various commercial coated conductors were irradiated with fast neutrons in order to introduce randomly distributed, uncorrelated defects which increase the critical current density…

cond-mat.supr-con2009★ 30 cited

Disorder effects on the superconducting properties of BaFeCoAs single crystals

M. Eisterer, M. Zehetmayer, H. W. Weber +4

Single crystals of superconducting BaFeCoAs were exposed to neutron irradiation in a fission reactor. The introduced defects decrease the superconducting transi…

cond-mat.supr-con2009★ 21 cited

Neutron Irradiation of Sm-1111

M. Eisterer, H. W. Weber, J. Jiang +5

SmFeAsOF was irradiated in a fission reactor to a fast (E > 0.1 MeV) neutron fluence of 4x10^ m. The introduced defects increase the normal state resistivi…

cond-mat.supr-con2008★ 27 cited

Assessing the spatial and field dependence of the critical current density in YBCO bulk superconductors by scanning Hall probes

F. Hengstberger, M. Eisterer, M. Zehetmayer +1

Although the flux density map of a bulk superconductor provides in principle sufficient information for calculating the magnitude and the direction of the supercurrent flow, the in…

cond-mat.supr-con2003★ 145 cited

Current percolation and anisotropy in polycrystalline MgB

M. Eisterer, M. Zehetmayer, H. W. Weber

The influence of anisotropy on the transport current in MgB polycrystalline bulk samples and wires is discussed. A model for the critical current density is proposed, which is…

cond-mat.supr-con2003★ 65 cited

"Magnetoscan": A Modified Hall Probe Scanning Technique for the Detection of Inhomogeneities in Bulk High Temperature Superconductors

M. Eisterer, S. Haindl, T. Wojcik +1

We present a novel technique for the investigation of local variations of the critical current density in large bulk superconductors. In contrast to the usual Hall probe scanning t…

cond-mat.supr-con2001★ 115 cited

Neutron Irradiation of MgB2 Bulk Superconductors

M. Eisterer, M. Zehetmayer, S. Toenies +5

Sintered samples of MgB2 were irradiated in a fission reactor. Defects in the bulk microstructure are produced during this process mainly by the 10B(n,a)7Li reaction while collisio…