Ghanbari, Atousa Risinggård, Vetle K. Linder, Jacob
Published in
Scientific Reports
We theoretically determine the magnetic exchange interaction between two ferromagnets coupled by a superconductor using a tight-binding lattice model. The main purpose of this study is to determine how the self-consistently determined superconducting state influences the exchange interaction and the preferred ground-state of the system, including t...
Lee, Jae-Hyeok Kim, Bosung Kim, Yongsub Kim, Sang-Koog
Published in
Scientific Reports
The magneto-thermal effect, which represents the conversion of magnetostatic energy to heat from magnetic materials, has been spotlighted for potential therapeutic usage in hyperthermia treatments. However, the realization of its potential has been challenged owing to the limited heating from the magnetic nanoparticles. Here, we explored a new-conc...
Kerber, Nico Ksenzov, Dmitriy Freimuth, Frank Capotondi, Flavio Pedersoli, Emanuele Lopez-Quintas, Ignacio Seng, Boris Cramer, Joel Litzius, Kai Lacour, Daniel
...
Published in
Nature Communications
Chiral spin structures have great promise for future information processing applications, however little is known about their ultrafast dynamics. In this experimental study, the authors use femtosecond temporal evolution to observe the fast recovery of chiral magnetic order.
Sobucki, Krzysztof Śmigaj, Wojciech Rychły, Justyna Krawczyk, Maciej Gruszecki, Paweł
Published in
Scientific Reports
Subwavelength resonant elements are essential building blocks of metamaterials and metasurfaces, which have revolutionized photonics. Despite similarities between different wave phenomena, other types of interactions can make subwavelength coupling significantly distinct; its investigation in their context is therefore of interest both from the phy...
Terada, Noriki Mamiya, Hiroaki
Published in
Nature Communications
Magnetic refrigeration offers a promising alternative to gas cycle cooling; however, it is typically hampered by the need for large magnetic fields. Here, the authors demonstrate that holmium can exhibit a large magnetic caloric effect while requiring only small magnetic fields.
Gilbert, Dustin A. Murray, Peyton D. De Rojas, Julius Dumas, Randy K. Davies, Joseph E. Liu, Kai
Published in
Scientific Reports
The first order reversal curve (FORC) method is a magnetometry based technique used to capture nanoscale magnetic phase separation and interactions with macroscopic measurements using minor hysteresis loop analysis. This makes the FORC technique a powerful tool in the analysis of complex systems which cannot be effectively probed using localized te...
Sala, G. Krizakova, V. Grimaldi, E. Lambert, C.-H. Devolder, T. Gambardella, P.
Published in
Nature Communications
Measuring real time magnetization dynamics resulting from Hall effects is hard due to the small signal size. Here Sala et al demonstrate a method of performing Hall resistance measurements with sub-ns resolution, and use it to investigate the switching of GdFeCo dots induced by spin-orbit torques.
Wang, M. Howells, B. Marshall, R. A. Taylor, J. M. Edmonds, K. W. Rushforth, A. W. Campion, R. P. Gallagher, B. L.
Published in
Scientific Reports
We present detailed experimental measurements and simulations of the field-dependent magnetization and magnetoresistance in the vicinity of the Curie temperature in the highly disordered dilute ferromagnetic semiconductor (Ga,Mn)As. The observed dependence of the magnetization on external magnetic field and temperature is consistent with three-dime...
Ali, Hasan Rusz, Jan Warnatz, Tobias Hjörvarsson, Björgvin Leifer, Klaus
Published in
Scientific Reports
When magnetic properties are analysed in a transmission electron microscope using the technique of electron magnetic circular dichroism (EMCD), one of the critical parameters is the sample orientation. Since small orientation changes can have a strong impact on the measurement of the EMCD signal and such measurements need two separate measurements ...
Goto, Minori Yamada, Yuma Shimura, Atsushi Suzuki, Tsuyoshi Degawa, Naomichi Yamane, Takekazu Aoki, Susumu Urabe, Junichiro Hara, Shinji Nomura, Hikaru
...
Published in
Nature Communications
Goto et al present a bolometer based around the heat generation in magnetic tunnel junctions under auto-oscillation conditions. Unlike superconducting bolometers, the presented device operates at room temperature and sub-GHz frequencies, opening possibilities for use in microwave devices.