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Mathematics – Magnetism - Materials (2023/2024)

Organizers: Alberta Bonanni (WPI c/o JKU Linz), Andrii Chumak (WPI c/o U.Wien), Christian Hellmich (WPI c/o TU Wien), OTPF Annette Schmidt (U. Köln)

Events

19th International Workshop on Nanomechanical Sensing (external website )

Location: TUtheSky, TU Wien, Campus Getreidemarkt
Time: 24. Jun 2024 (Mon) - 27. Jun 2024 (Thu)
Organisation(s)
TU Wien
WPI 		Organiser(s)
Silvan Schmid (WPI c/o TU Wien)
Robert G. West (TU Wien)

Workshop on "Inverse design magnonics"

Location: WPI Seminar Room 08.135 OMP1
Time: 18. Feb 2024 (Sun) - 20. Feb 2024 (Tue); Opening: 9:00
Organisation(s)
Research Platform “Mathematics-Magnetism-Materials” (MMM) U.Wien
Wolfgang Pauli Institute 		Organiser(s)
Andrii Chumak (WPI c/o MMM @ Fak. Physik U.Wien)
Norbert J. Mauser (WPI c/o MMM @ Fak. Math. U.Wien)
Dieter Suess (WPI c/o MMM @ Fak. Physik U.Wien)
Remark: Click here for further information

Ping LIU : “Magnetic Hardening in Low-Dimensional Ferromagnets"
IEEE Distinguished Lecture 2023
Colloquium of the research platform MMM

Location: HS13, 2nd floor, Oskar Morgensternplatz 1, 1090
Time: 13. Sep 2023 (Wed) - 13. Sep 2023 (Wed); Opening: 15:00
Topics:
1) 14h55 – 15h15 : Coffee & Cake

2) 15h15 – 15h20 : Introduction : Thomas Schrefl (MMM c/o DUKrems)

3) 15.20 – 16.10 Uhr : J. Ping Liu (IEEE Fellow, Univ. Texas at Arlington, USA)
“Magnetic Hardening in Low-Dimensional Ferromagnets"

4) 16h10 – 17h00 : Drink & Sandwich


Abstract:
How “hard” (coercive) a ferromagnet can be, has been a puzzle for a century. Seven decades ago, William Fuller Brown offered his famous theorem to correlate coercivity with the magnetocrystalline anisotropy fields in ferromagnetic materials. However, the experimental coercivity values have been far below the calculated levels given by the theorem, which is called Brown’s Coercivity Paradox. Researchers have attempted to solve the paradox with sustained efforts
however, the paradox remains unsolved, and coercivity still cannot be predicted and calculated quantitatively by modeling. Progress has been made in the past 20 years in understanding coercivity mechanisms in nanoscale low-dimensional ferromagnets. In fact, ferromagnetism is a size-dependent physical phenomenon, as revealed by theoretical studies. However, nanoscale ferromagnetic samples with controllable size and shape have been available only in recent times. By adopting newly developed salt-matrix annealing, surfactant-assisted milling, and improved hydrothermal and chemical solution techniques, we used a bottom-up approach to produce nanostructured magnets and have successfully synthesized monodisperse ferromagnetic Fe-Pt, Fe-Co and Sm-Co nanoparticles and Co nanowires with extraordinary properties, which are strongly size- and shape-dependent. A study on size-dependent Curie temperature of the L10 ferromagnetic nanoparticles with sizes down to 2 nm has experimentally proved a finite-size effect. A systematic study of nanowires with extremely high coercivity above their magnetocrystalline anisotropy fields has opened a door to the solution of Brown’s Paradox.

Short Biography:
J. Ping Liu received his Ph.D. degree in physics from the Univ. of Amsterdam, in 1994. For the past four decades, he has worked in research and development of permanent magnets and related magnetic materials in China, Europe, and USA. He is currently a Distinguished University Professor with The University of Texas at Arlington, USA, and a fellow oft he IEEE. His current research has been focused on hard magnetic nanoparticles, thin films, and bulk nanocomposites, as reported in his more than 320 peer-reviewed journal articles, review articles, and books, including Nanoscale Magnetic Materials and Applications (Springer, 2009), Skyrmions: Topological Structures, Properties, and Applications (CRC Press, 2016), and Permanent Magnets: The History and Future (Science Press, 2020). He has supervised more than 50 graduate students and post-doctoral researchers. Dr. Liu is an elected fellow of the American Physical Society. He received the Outstanding Achievement Award at the 25th International Workshop on Rare-Earth and Future Permanent Magnets and Their Applications in 2018.
Organisation(s)
Research Platform “Mathematics-Magnetism-Materials” (MMM) @ Univ. Wien
Christian Doppler Lab. @ Univ .Krems
Wolfgang Pauli Inst. 		Organiser(s)
Thomas Schrefl (MMM c/o CDL @ U. Krems)
Norbert J. Mauser (WPI c/o MMM Univ. Wien & CNRS)
Remark: Click here for further information

Talks in the framework of this thematic program... (by date) , (by name)

Olga Taussky Pauli Fellows

Schmidt, Annette 1. Jul 2023-30. Jun 2024 local address 

Visitors

Ballestero, Carlos Gonzals 18. Feb 2024-21. Feb 2024 local address 
Becherer, Markus 18. Feb 2024-21. Feb 2024 local address 
Breitbach, David 18. Feb 2024-21. Feb 2024 local address 
Centrone, Andre 24. Jun 2024-27. Jun 2024 local address 
Csaba, Gyorgy 18. Feb 2024-21. Feb 2024 local address 
De Pastina, Annalisa 1. Jan 2001-1. Jan 2001 local address 
Eichler, Alexander 24. Jun 2024-27. Jun 2024 local address 
Ender, Milan 18. Feb 2024-21. Feb 2024 local address 
Engelsen, Nils Johan 24. Jun 2024-27. Jun 2024 local address 
Favero, Ivan 24. Jun 2024-27. Jun 2024 local address 
Greil, Johannes 18. Feb 2024-21. Feb 2024 local address 
Hanay, Selim 24. Jun 2024-27. Jun 2024 local address 
Hille, Helge 24. Jun 2024-27. May 2024 local address 
Hillebrands, Burkard 26. Jan 2024-30. Jan 2024 local address 
Hillebrands, Sabine 26. Jan 2024-30. Jan 2024 local address 
Ivanov, Aleksei 5. Jun 2024-15. Jun 2024 local address 
Liu, Ping 12. Sep 2023-14. Sep 2023 local address 
Naunheimer, Felix 18. Feb 2024-21. Feb 2024 local address 
Novak, Ekaterina 9. Mar 2024-17. Mar 2024 local address 
9. Jun 2024-15. Jun 2024 local address 
Oezelt, Harald 18. Feb 2024-21. Feb 2024 local address 
Papp, Adam 18. Feb 2024-21. Feb 2024 local address 
Pirro, Philipp 18. Feb 2024-21. Feb 2024 local address 
Platz, Daniel 24. Jun 2024-27. Jun 2024 local address 
Purdy, Tom 24. Jun 2024-27. Jun 2024 local address 
Roukes, Michael 24. Jun 2024-27. Jun 2024 local address 
Sader, John 24. Jun 2024-27. Jun 2024 local address 
San Paulo, Alvaro 24. Jun 2024-27. Jun 2024 local address 
Schliesser, Albert 24. Jun 2024-27. Jun 2024 local address 
Schrefl, Thomas 18. Feb 2024-21. Feb 2024 local address 
Seshia, Ashwin 24. Jun 2024-27. Jun 2024 local address 
St-Gelais, Raphael 24. Jun 2024-27. Jun 2024 local address 
Steeneken, Peter 24. Jun 2024-27. Jun 2024 local address 
Tang, Hong 24. Jun 2024-27. Jun 2024 local address 
Villanueva, Guillermo 24. Jun 2024-27. Jun 2024 local address 
Weig, Eva 24. Jun 2024-27. Jun 2024 local address 
Zybach, Bernhard 24. Jun 2024-27. Jun 2024 local address 

PostDocs

Barannyk, Oleksandr 1. Feb 2024-31. Mar 2024 local address 
Buravtseva, Lubov 1. Feb 2024-31. Mar 2024 local address 
Exl, Lukas 1. Apr 2024-30. Jun 2024 local address 
Konchatnyi, Mykhailo 1. Feb 2024-31. Mar 2024 local address 
Kosogor, Anna 1. Nov 2023-31. Dec 2023 local address 
Kurnosov, Mykyta 1. Feb 2024-31. Mar 2024 local address 
Kuznietsov, Pylyp 1. Feb 2024-31. Mar 2024 local address 
Melkov, Gennadii 1. Feb 2024-31. Mar 2024 local address 
Pazukha, Iryna 1. Feb 2024-31. Mar 2024 local address 
Piovano, Paolo 1. Jul 2023-31. Jul 2023 local address 
Shabelnyk, Yurii 1. Feb 2024-31. Mar 2024 local address 
Shkurdoda, Yurii 1. Feb 2024-31. Mar 2024 local address 

PreDocs

Koriukina, Viktoriia 1. Feb 2024-31. Mar 2024 local address 
Kuznetsova, Kateryna 1. Feb 2024-31. Mar 2024 local address 
Rylova, Anastasiia 1. Feb 2024-31. Mar 2024 local address 
Yermakov, Maksym 1. Feb 2024-31. Mar 2024 local address 
Yevdokymenko, Vladyslav 1. Feb 2024-31. Mar 2024 local address 
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