Publications (8)
Spin and orbital magnetic moments of size-selected iron, cobalt, and nickel clusters and their link to the bulk phase diagrams
A. Langenberg, K. Hirsch, A. Lawicki +7
Spin and orbital magnetic moments of cationic iron, cobalt, and nickel clusters have been determined from x-ray magnetic circular dichroism spectroscopy. In the size regime of $n =…
Bayesian modelling of multiple plasma diagnostics at Wendelstein 7-X
Sehyun Kwak, J. Svensson, S. Bozhenkov +7
Consistent inference of the electron density and temperature has been carried out with multiple heterogeneous plasma diagnostic data sets at Wendelstein 7-X. The predictive models…
Coordination-driven magnetic-to-nonmagnetic transition in manganese doped silicon clusters
V. Zamudio-Bayer, L. Leppert, K. Hirsch +10
The interaction of a single manganese impurity with silicon is analyzed in a combined experimental and theoretical study of the electronic, magnetic, and structural properties of m…
Validation of a Comprehensive First-Principles-Based Framework for Predicting the Performance of Future Stellarators
D. L. C. Agapito Fernando, A. Bañón Navarro, D. Carralero +20
This paper presents the validation of the framework for recovering both the steady-state plasma profiles in the considered radial domain and selected t…
Suppression of core turbulence by profile shaping in Wendelstein 7-X
A. v. Stechow, O. Grulke, Th. Wegner +23
In the Wendelstein 7-X magnetic confinement experiment, a reduction of turbulent density fluctuations as well as anomalous impurity diffusion is associated with a peaking of the pl…
Magnetic Moments of Chromium-Doped Gold Clusters: The Anderson Impurity Model in Finite Systems
K. Hirsch, V. Zamudio-Bayer, A. Langenberg +6
The magnetic moment of a single impurity atom in a finite free electron gas is studied in a combined x-ray magnetic circular dichroism spectroscopy and density functional theory st…
Electronic ground states of Fe and Co as determined by x-ray absorption and x-ray magnetic circular dichroism spectroscopy
V. Zamudio-Bayer, K. Hirsch, A. Langenberg +4
The electronic ground state of the Co diatomic molecular cation has been assigned experimentally by x-ray absorption and x-ray magnetic circular dichroism spectroscopy…
Observation and characterisation of trapped electron modes in Wendelstein 7-X
A. Krämer-Flecken, J. H. E. Proll, G. Weir +17
In the past, quasi coherent modes were reported for nearly all tokamaks. The general definition describes modes as quasi coherent when the magnitude squared coherence is in the ran…