Instrument Scientist

for the neutron resonant spin-echo spectrometer RESEDA

Publications


Spin-energy entanglement of a time-focused neutron


J.C. Leiner, S.J. Kuhn, S. McKay, J.K. Jochum, F. Li, A.A.M. Irfan, F. Funama, D. Mettus, L. Beddrich, C. Franz, J. Shen, S.R. Parnell, R.M. Dalgliesh, M. Loyd, N. Geerits, G. Ortiz, C. Pfleiderer, R. Pynn

Physical Review Applied, vol. 22, 2024 Sep, pp. L031005


Evolution of spin dynamics during freezing in the spin-glass Fe_xCr_1-x


S. Säubert, C. Franz, J. K. Jochum, G. Benka, A. Bauer, S. M. Shapiro, P. Böni, C. Pfleiderer

Physical Review B, vol. 110, 2024 Sep, p. 094422


The human factor: results of a small-angle scattering data analysis round robin


B. R. Pauw, G. J. Smales, A. S. Anker, V. Annadurai, D. M. Balazs, R. Bienert, W. G. Bouwman, I. Breßler, J. Breternitz, E. S. Brok, G. Bryant, A. J. Clulow, E. R. Crater, F. De Geuser, A. Del Giudice, J. Deumer, S. Disch, S. Dutt, K. Frank, E. Fratini, P. R. a. F. Garcia, E. P. Gilbert, M. B. Hahn, J. Hallett, M. Hohenschutz, M. Hollamby, S. Huband, J. Ilavsky, J. K. Jochum, M. Juelsholt, B. W. Mansel, P. Penttilä, R. K. Pittkowski, G. Portale, L. D. Pozzo, L. Rochels, J. M. Rosalie, P. E. J. Saloga, S. Seibt, A. J. Smith, G. N. Smith, G. A. Spiering, T. M. Stawski, O. Taché, A. F. Thünemann, K. Toth, A. E. Whitten, J. Wuttke

Journal of Applied Crystallography, vol. 56, 2023 Dec, pp. 1618--1629


MIASANS at the longitudinal neutron resonant spin-echo spectrometer RESEDA


Jonathan C. Leiner, Christian Franz, Johanna K. Jochum, Christian Pfleiderer

EPJ Web of Conferences, vol. 272, 2022, p. 02008


Extending MIEZE spectroscopy towards thermal wavelengths


J. K. Jochum, C. Franz, T. Keller, C. Pfleiderer

Journal of Applied Crystallography, vol. 55, 2022 Dec, pp. 1424--1431


Transmission Bender as an Analyzer Device for MIEZE


Johanna K. Jochum, Jos F. K. Cooper, Lukas M. Vogl, Peter Link, Olaf Soltwedel, Peter Böni, Christian Pfleiderer, Christian Franz

Quantum Beam Science, vol. 6, 2022 Sep, p. 26


Robust approaches for model-free small-angle scattering data analysis


P. Bender, D. Honecker, M. Bersweiler, R. Costo, T. Kahmann, F. Ludwig, J. Leiner, J. K. Jochum

Journal of Applied Crystallography, vol. 55, 2022 Jun, pp. 586--591


Using small-angle scattering to guide functional magnetic nanoparticle design


Dirk Honecker, Mathias Bersweiler, Sergey Erokhin, Dmitry Berkov, Karine Chesnel, Diego Alba Venero, Asma Qdemat, Sabrina Disch, Johanna K. Jochum, Andreas Michels, Philipp Bender

Nanoscale Advances, vol. 4, 2022 Feb, pp. 1026--1059


Optimized signal deduction procedure for the MIEZE spectroscopy technique


J. K. Jochum, L. Spitz, C. Franz, A. Wendl, J. C. Leiner, C. Pfleiderer, O. Soltwedel

Journal of Applied Crystallography, vol. 55, 2022 Feb, pp. 14--20


Oscillatory magnetic fields for neutron resonance spin-echo spectroscopy


Johanna K. Jochum, Andreas Hecht, Olaf Soltwedl, Christian Fuchs, Jonathan Frank, Enrico Faulhaber, Jonathan C. Leiner, Christian Pfleiderer, Christian Franz

Measurement Science and Technology, 2020


An Exercise in Open Data: Triple Axis Data on Si single crystal


Lukas Beddrich, Alexander Book, Xaver Simon Brems, Petr Čermák, Michał Dembski-Villalta, Luis Flacke, Henrik Gabold, Marianna Gerina, Johanna K. Jochum, Andrej Kancko, Soňa Kohúteková, Tereza Košutová, Petr Král, Anastasiia Murmiliuk, Lukáš Nowak, Anastasiia Pylypets, Daniel Staško, Ran Tang, Michal Vančík, Lukas Vogl

arXiv, 2020 Oct


Yu-Shiba-Rusinov bands in ferromagnetic superconducting diamond


Gufei Zhang, Tomas Samuely, Naoya Iwahara, Jozef Kačmarčík, Changan Wang, Paul W. May, Johanna K. Jochum, Oleksandr Onufriienko, Pavol Szabó, Shengqiang Zhou, Peter Samuely, Victor V. Moshchalkov, Liviu F. Chibotaru, Horst-Günter Rubahn

Science Advances, vol. 6, 2020 May, pp. eaaz2536


The influence of phonon softening on the superconducting critical temperature of Sn nanostructures


Kelly Houben, Johanna K. Jochum, Sebastien Couet, Enric Menéndez, Thomas Picot, Michael Y. Hu, Jiyong Y. Zhao, E. Ercan Alp, André Vantomme, Kristiaan Temst, Margriet J. Van Bael

Scientific Reports, vol. 10, 2020 Mar, p. 5729


Enhanced Magnetoelectric Coupling in BaTiO3-BiFeO3 Multilayers—An Interface Effect


Stefan Hohenberger, Johanna K. Jochum, Margriet J. Van Bael, Kristiaan Temst, Christian Patzig, Thomas Höche, Marius Grundmann, Michael Lorenz

Materials, vol. 13, 2020 Jan, p. 197


Structural and Magnetic Properties of Mn3Ge Grown on a Thin Polycrystalline MgO Seed Layer


Enlong Liu, Sebastien Couet, Johanna K. Jochum, Margriet Van Bael, Bas Opperdoes, Kristiaan Temst, Sofie Mertens, Sven Van Elshocht, Jo De Boeck, Gouri S. Kar, Johan Swerts

physica status solidi (RRL) – Rapid Research Letters, vol. 13, 2019, p. 1800681


Neutron MIEZE spectroscopy with focal length tuning


J. K. Jochum, A. Wendl, T. Keller, C. Franz

Measurement Science and Technology, vol. 31, 2019 Dec, p. 035902


The software package MIEZEPY for the reduction of MIEZE data


Alexander Schober, Andreas Wendl, Franz X. Haslbeck, Johanna K. Jochum, Leonie Spitz, Christian Franz

Journal of Physics Communications, vol. 3, 2019 Oct, p. 103001


The longitudinal neutron resonant spin echo spectrometer RESEDA


C. Franz, O. Soltwedel, C. Fuchs, S. Säubert, F. Haslbeck, A. Wendl, J. K. Jochum, P. Böni, C. Pfleiderer

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 939, 2019 Sep, pp. 22--29


MIEZE Neutron Spin-Echo Spectroscopy of Strongly Correlated Electron Systems


Christian Franz, Steffen Säubert, Andreas Wendl, Franz X. Haslbeck, Olaf Soltwedel, Johanna K. Jochum, Leonie Spitz, Jonas Kindervater, Andreas Bauer, Peter Böni, Christian Pfleiderer

Journal of the Physical Society of Japan, vol. 88, 2019 Aug, p. 081002


In situ study of the alpha-Sn to beta-Sn phase transition in low-dimensional systems: Phonon behavior and thermodynamic properties


Kelly Houben, Johanna K. Jochum, Daniel P. Lozano, Manisha Bisht, Enric Menéndez, Daniel G. Merkel, Rudolf Rüffer, Aleksandr I. Chumakov, Sam Roelants, Bart Partoens, Milorad V. Milošević, François M. Peeters, Sebastien Couet, André Vantomme, Kristiaan Temst, Margriet J. Van Bael

Physical Review B, vol. 100, 2019 Aug, p. 075408


Magnetic characterization of oblique angle deposited Co/CoO on gold nanoparticles


Johanna K. Jochum, Thomas Saerbeck, Vera Lazenka, Vincent Joly, Lianchen Shan, Hans-Gerd Boyen, Kristiaan Temst, André Vantomme, Margriet J. Van Bael

Journal of Magnetism and Magnetic Materials, vol. 483, 2019 Aug, pp. 76--82


Novel synthesis of superparamagnetic plasmonic core-shell iron oxide-gold nanoparticles


Arne Billen, Amaury de Cattelle, Johanna K. Jochum, Margriet J. Van Bael, Johan Billen, Jin Won Seo, Ward Brullot, Guy Koeckelberghs, Thierry Verbiest

Physica B: Condensed Matter, vol. 560, 2019 May, pp. 85--90


Experimental observation of electron-phonon coupling enhancement in Sn nanowires caused by phonon confinement effects


D. P. Lozano, S. Couet, C. Petermann, G. Hamoir, J. K. Jochum, T. Picot, E. Menéndez, K. Houben, V. Joly, V. A. Antohe, Michael Y. Hu, B. M. Leu, A. Alatas, Ayman H. Said, S. Roelants, B. Partoens, M. V. Milošević, F. M. Peeters, L. Piraux, J. Van de Vondel, A. Vantomme, K. Temst, M. J. Van Bael

Physical Review B, vol. 99, 2019 Feb, p. 064512


Impact of operating temperature on the electrical and magnetic properties of the bottom-pinned perpendicular magnetic tunnel junctions


Y. C. Wu, W. Kim, S. Rao, K. Garello, S. Van Beek, S. Couet, E. Liu, J. Swerts, S. Kundu, L. Souriau, F. Yasin, D. Crotti, J. K. Jochum, M. J. Van Bael, J. Van Houdt, G. Groeseneken, G. S. Kar

Applied Physics Letters, vol. 113, 2018 Oct, p. 142405


Impact of magnetization and hyperfine field distribution on high magnetoelectric coupling strength in BaTiO3–BiFeO3 multilayers


Johanna K. Jochum, Michael Lorenz, Haraldur P. Gunnlaugsson, Christian Patzig, Thomas Höche, Marius Grundmann, André Vantomme, Kristiaan Temst, Margriet J. Van Bael, Vera Lazenka

Nanoscale, vol. 10, 2018 Mar, pp. 5574--5580


Superconducting Ferromagnetic Nanodiamond


Gufei Zhang, Tomas Samuely, Zheng Xu, Johanna K. Jochum, Alexander Volodin, Shengqiang Zhou, Paul W. May, Oleksandr Onufriienko, Jozef Kačmarčík, Julian A. Steele, Jun Li, Johan Vanacken, Jiri Vacík, Pavol Szabó, Haifeng Yuan, Maarten B. J. Roeffaers, Dorin Cerbu, Peter Samuely, Johan Hofkens, Victor V. Moshchalkov

ACS Nano, vol. 11, 2017 Jun, pp. 5358--5366


Perpendicular magnetic anisotropy of CoFeB\Ta bilayers on ALD HfO2


Bart F. Vermeulen, Jackson Wu, Johan Swerts, Sebastien Couet, Iuliana P. Radu, Guido Groeseneken, Christophe Detavernier, Johanna K. Jochum, Margriet Van Bael, Kristiaan Temst, Amit Shukla, Shinji Miwa, Yoshishige Suzuki, Koen Martens

AIP Advances, vol. 7, 2017 May, p. 055933


Interface induced out-of-plane magnetic anisotropy in magnetoelectric BiFeO3-BaTiO3 superlattices


Vera Lazenka, Johanna K. Jochum, Michael Lorenz, Hiwa Modarresi, Haraldur P. Gunnlaugsson, Marius Grundmann, Margriet J. Van Bael, Kristiaan Temst, André Vantomme

Applied Physics Letters, vol. 110, 2017 Feb, p. 092902


Tunability of Size and Magnetic Moment of Iron Oxide Nanoparticles Synthesized by Forced Hydrolysis


Ben Sutens, Tom Swusten, Kuo Zhong, Johanna K. Jochum, Margriet J. Van Bael, Erik V. Van der Eycken, Ward Brullot, Maarten Bloemen, Thierry Verbiest

Materials, vol. 9, 2016 Jul, p. 554

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