Kirchhoff-Institute for Physics

News

A new flower in the magnetic garden

Our study on pentagonal-bipyramildal coordinated molecules which remind us on a beautiful flower led to another sommer-themed publication in Chemistry - A European Journal.

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CQD Colloquium (funded by STRUCTURES) next Wednesday, 9th of July, by Prof. Sylvain Nascimbene,Paris

Next CQD Colloquium (funded by Structures) will be given by Dr. Sylvain Nascimbene, École Normale Supérieure de Paris on: Exploring quantum Hall physics with ultracold dysprosium atoms

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Current Publications

Classic Complex Systems

Sustainable operation of research infrastructure for novel computing
Yannik Stradmann, Joscha Ilmberger, Eric Müller, Johannes Schemmel, arXiv: 2506.23901 [cs.AR]
Scalable network emulation on analog neuromorphic hardware
Elias Arnold, Philipp Spilger, Jan V. Straub, Eric Müller, Dominik Dold, Gabriele Meoni, Johannes Schemmel,
Lu.i – A low-cost electronic neuron for education and outreach
Yannik Stradmann, Julian Göltz, Mihai A. Petrovici, Johannes Schemmel, Sebastian Billaudelle, Trends in Neuroscience and Education, Volume 38, 100248
jaxsnn: Event-driven Gradient Estimation for Analog Neuromorphic Hardware
Eric Müller and Moritz Althaus and Elias Arnold and Philipp Spilger and Christian Pehle and Johannes Schemmel,
Closing the loop: High-speed robotics with accelerated neuromorphic hardware
Yannik Stradmann, Johannes Schemmel, Frontiers in Neuroscience, Sec. Neuromorphic Engineering, Volume 18 - 2024

Quantum Systems

The relevance of non-axiality and low-lying excited states for slow magnetic relaxation in pentagonal-bipyramidal Erbium(III) complexes probed by high-frequency EPR
J. Arneth, L. Spillecke, C. Koo, T.A. Bazhenova, E.B. Yagubskii, R. Klingeler, Chemistry - A European Journal 31, e202500369 (2025)
Anisotropic magnetic phase diagrams, tricriticality, and spin reorientation in high-pressure grown SmCrO3 single crystals
Ning Yuan, Erik Walendy, Nour Maraytta, Waldemar Hergett, Luca Bischof, Michael Merz, Rüdiger Klingeler, Phys. Rev. B 111, 174437 (2025)
Multilayer MXene framework for construction of hierarchical structure composites for high performance metal ion batteries
Peng Guo, Lennart Singer, Zhiyong Zhao, Brian Hinz, Tomasz Kdzierski, Tobias König, Ewa Mijowska, Michael Zharnikov, Peter Comba, Rüdiger Klingeler, Electrochimica Acta 530, 146413 (2025)
Entropy estimation in a spin-1 Bose-Einstein condensate
Yannick Deller, Martin Gärttner, Tobias Haas, Markus K Oberthaler, Moritz Reh and Helmut Strobel, New Journal Physics, Vol. 27, 043004 (2025)
The Interplay of Single Ion Anisotropy and Magnetic 3d-4f Interactions in VIII2LnIII2 Butterfly Complexes
J. Arneth, X.-F. Li, J. Braun, S. Paul, M. Schulze, C.E. Anson, W. Wernsdorfer, A.K. Powell, R. Klingeler, ChemistryEurope 2025, e202500011

Fundamental particles and interactions

Measurement of the Z boson invisible width at √s = 13 TeV with the ATLAS detector
ATLAS Collaboration, Phys.Lett.B 854 (2024) 138705
Penning-trap measurement of the Q value of electron capture in 163Ho for the determination of the electron neutrino mass
C. Schweiger, Martin Braß, V. Debierre, M. Door, H. Dorrer, C. E. Düllmann, C. Enss, P. Filianin, L. Gastaldo, Z. Harman, M. W. Haverkort, J. Herkenhoff, P. Indelicato, C. H. Keitel, K. Kromer, D.Lange, Y. N. Novikov, D. Renisch, A. Rischka, R. X. Schüssler, S. Eliseev, K. Blaum, Nature Physics 20, 921 (2024)
Use of Superfluid Helium to Observe Directionality of Galactic Dark Matter
G. M. Seidel, C. Enss, J. Low Temp. Phys. (2024)
Application of a metallic-magnetic calorimeter for high-resolution x-ray spectroscopy of Fe at an EBIT
M.O. Herdrich, D. Hengstler, S.Allgeier, M. Friedrich, A. Fleischmann, C. Enss, S. Bernitt, T. Morgenroth, S. Trotsenko, R. Schuch and Th. Stöhlker, J. Phys. B: At. Mol. Opt. Phys. 57, (2024) 085001
Magnetic microcalorimeter with paramagnetic temperature sensors and integrated dc-SQUID readout for high-resolution x-ray emission spectroscopy
M. Krantz, F. Toschi, B. Maier, G. Heine, C. Enss, S. Kempf, Appl. Phys. Lett. 124, 032601 (2024)

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