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Angular Dependence Of The Magnetization Relaxation In Co/Pt Multilayers, Anil Adhikari, Bryce Herrington, Nhat Nguyen, Ruthi Zielinski, Ather Mahmood, S. Adenwalla, Robert Streubel
Angular Dependence Of The Magnetization Relaxation In Co/Pt Multilayers, Anil Adhikari, Bryce Herrington, Nhat Nguyen, Ruthi Zielinski, Ather Mahmood, S. Adenwalla, Robert Streubel
Department of Physics and Astronomy: Faculty Publications
We study the influence of defects in Co/Pt multilayers on the room-temperature magnetization reversal and relaxation mechanisms via angle-dependent magnetic viscosity and coercive field measurements. The data reveal a transition from pinning-dominated domain wall propagation to a sequence of pinning-dominated and uniform switching, with increasing tilt away from the normal direction. The leading role of the dendritic domain wall propagation in the nanogranular exchange-coupled films is corroborated by the scaling of relaxation times, the angular dependence of the coercive field, and Kerr microscopy.
Nitrogen-Vacancy Magnetometry Of Individual Fe-Triazole Spin Crossover Nanorods, Suvechhya Lamichhane, Kayleigh A. Mcelveen, Adam Erickson, Ilja Fescenko, Shuo Sun, Rupak Timalsina, Yinsheng Guo, Sy_Hwang Liou, Rebecca Lai, Abdelghani Laraoui
Nitrogen-Vacancy Magnetometry Of Individual Fe-Triazole Spin Crossover Nanorods, Suvechhya Lamichhane, Kayleigh A. Mcelveen, Adam Erickson, Ilja Fescenko, Shuo Sun, Rupak Timalsina, Yinsheng Guo, Sy_Hwang Liou, Rebecca Lai, Abdelghani Laraoui
Department of Physics and Astronomy: Faculty Publications
[Fe(Htrz)2(trz)](BF4) (Fe-triazole) spin crossover molecules show thermal, electrical, and optical switching between high spin (HS) and low spin (LS) states, making them promising candidates for molecular spintronics. The LS and HS transitions originate from the electronic configurations of Fe(II) and are considered to be diamagnetic and paramagnetic respectively. The Fe(II) LS state has six paired electrons in the ground states with no interaction with the magnetic field and a diamagnetic behavior is usually observed. While the bulk magnetic properties of Fe-triazole compounds are widely studied by standard magnetometry techniques their magnetic properties at the individual level …