Ulf Helmersson
机构: Professor, Linköping University
每年引用次数
引用次数
引用: 17,227
H-指数: 66
I10-指数 : 166
出版物: 342
Computer simulation of the collection probability of ions and neutrals on nanoparticles in a plasma
I. Pilch , Nils Brenning , U. Helmersson , D. Söderström
40th EPS Conference on Plasma Physics, EPS 2013, 1 July 2013 through 5 July 2013, Espoo, Finland 1578 -1581
2013
Properties of reactive magnetron sputtered ruthenium oxide thin films before and after plasma immersion ion implantation of nitrogen
P. K. Chu , H. P. Ho , K. C. Lo , U. Helmersson
2002
Synthesis of yttria stabilized zirconia thin film by high-power impulse magnetron sputtering
D. Magnfält , Pascal Brault , Amaël Caillard , U. Helmersson
Magnetron, Ion processing & Arc Technologies European Conference
2010
Étude de propriétés de films YSZ élaborés par plasma magnétron HIPIMS
D. Magnfält , Pascal Brault , U. Helmersson , M. Aiempanakit
Matériaux 2010 02 -1305
2010
Electromagnetic Frequency-Temperature Compensation Techniques for High-Q Sapphire Resonators
J. Krupka , Eugene Ivanov , John Hartnett , Anthony Mann
Electromagnetic Frequency-Temperature Compensation Techniques for High-Q Sapphire Resonators
2
1998
Development of YSZ Thin Films by Reactive High Power Impulse Magnetron Sputtering
D. Magnfält , Caroline Andreazza-Vignolle , Pascal Brault , U. Helmersson
HIPIMS 2010
2010
Plasma Dynamics in a Unipolar Pulsed Magnetron Sputtering Discharge
J. Alami , K. B. Gylfason , U. Helmersson , J. Bohlmark
APS Annual Gaseous Electronics Meeting Abstracts
2004
Energy distributions of positive and negative ions during magnetron sputtering of an Al target in Ar∕O2 mixtures
Jon M. Andersson , E. Wallin , E. P. Münger , U. Helmersson
Journal of Applied Physics 100 ( 3) 033305
44
2006
Eliminating the hysteresis effect for reactive sputtering processes
T. Nyberg , S. Berg , U. Helmersson , K. Hartig
Applied Physics Letters 86 ( 16) 164106
73
2005
Compressive intrinsic stress originates in the grain boundaries of dense refractory polycrystalline thin films
D. Magnfält , A. Fillon , R. D. Boyd , U. Helmersson
Journal of Applied Physics 119 ( 5) 055305
29
2016
Evolution of the electron energy distribution and plasma parameters in a pulsed magnetron discharge
J. T. Gudmundsson , J. Alami , U. Helmersson
Applied Physics Letters 78 ( 22) 3427 -3429
176
2001
Radio frequency dual magnetron sputtering deposition and characterization of nanocomposite Al2O3–ZrO2 thin films
D. H. Trinh , H. Högberg , J. M. Andersson , M. Collin
Journal of Vacuum Science and Technology 24 ( 2) 309 -316
32
2006
Deep energy levels in RuO2∕4H–SiC Schottky barrier structures
L. Stuchlikova , D. Buc , L. Harmatha , U. Helmersson
Applied Physics Letters 88 ( 15) 153509
11
2006
Microstructure of SrTiO3 Thin Films as Single Layer and Incorporated in Yba2Cu3O7-x/SrTiO3 Multilayers
L. Ryen , E. Olssoni , L. D. Madsen , C. N. L. Johnson
MRS Proceedings 401
2
1995
Characterization of strain relaxation of (0 0 1) oriented SrTiO3 thin films grown on LaAIO3 (1 1 0) by means of reciprocal space mapping using x-ray diffraction
C. N. L. Edvardsson , J. Birch , U. Helmersson
Journal of Materials Science: Materials in Electronics 10 ( 3) 203 -208
4
1999
Microstructure and microwave loss studies on epitaxial YBa 2 Cu 3 O x thin films
T.I. Selinder , Z. Han , U. Helmersson , S. Rudner
High Tc Superconductor Thin Films 219 -224
1992
α-alumina coatings on WC/Co substrates by physical vapor deposition
T.I. Selinder , E. Coronel , E. Wallin , U. Helmersson
International Journal of Refractory Metals & Hard Materials 27 ( 2) 507 -512
49
2009
Fluctuation magnetoconductivity in an YBa2Cu3O7−δ thin film
W. Holm , Ö. Rapp , C.N.L. Johnson , U. Helmersson
Physica C-superconductivity and Its Applications 235 1925 -1926
1994
Yttrium oxide inclusions in YBa2Cu3Ox thin films: Enhanced flux pinning and relation to copper oxide surface particles
T.I. Selinder , U. Helmersson , Z. Han , J.-E. Sundgren
Physica C-superconductivity and Its Applications 202 ( 1) 69 -74
57
1992
Two-domain formation during the epitaxial growth of GaN (0001) on c-plane Al2O3 (0001) by high power impulse magnetron sputtering
M. Junaid , D. Lundin , J. Palisaitis , C.-L. Hsiao
Journal of Applied Physics 110 ( 12) 123519
16
2011
Daniel Lundin Jon Tomas Gudmundsson Johan Böhlmark Lars Hultman, Professor, PhD Jones Alami Jochen M. Schneider Ivan Petrov Joe Greene Denis Music Montri Aiempanakit Reine Wallenberg RD Boyd Scott Barnett Per Eklund Tomas Kubart Eva Olsson Sveinn Ólafsson Tetsuhide Shimizu Spartak Gevorgian Hans Högberg