%0 Journal Article %1 PhysRevB.109.094404 %A Yamamoto, Sh. %A Gorbunov, D. I. %A Prokhnenko, O. %A Weschke, E. %A Miyata, A. %A Diaz-Ortega, I. F. %A Strohm, C. %A Duc, F. %A Henriques, M. S. %A Gazizulina, A. %A Uhlarz, M. %A Mathon, O. %A Andreev, A. V. %A Nojiri, H. %A Wosnitza, J. %D 2024 %I American Physical Society %J Phys. Rev. B %K b %N 9 %P 094404 %R 10.1103/PhysRevB.109.094404 %T Field-induced magnetic transitions in the highly anisotropic ferrimagnet ErFe$_5$Al$_7$ studied by high-field x-ray magnetic dichroism %U https://link.aps.org/doi/10.1103/PhysRevB.109.094404 %V 109 %X We present a comprehensive study of the magnetic properties of the strongly anisotropic ferrimagnet $ErFe_5Al_7$ in pulsed magnetic fields up to 30 T applied along the hard magnetization axis within the basal plane of the tetragonal lattice around the compensation temperature ($T_comp$). Macroscopic measurements showed two anomalies at about 8 T and 25 T in a small temperature range around $T_comp$. High-field x-ray magnetic circular dichroism (XMCD) data at the Er $M_5$- and the Fe $L_3$-edge resonances provide insight into the element-selective magnetization processes, revealing a coherent rotation of Er $4f$ and Fe $3d$ moments, with stepwise jumps including an unexpected one from an easy to a hard magnetization axis. XMCD at the Er $L_3$-edge resonance elucidates the role of Er $5d$ electrons in coupling the Er $4f$ and the Fe $3d$ moments. Finally, an in-plane anisotropy constant was evaluated from a simulation of the magnetization process at temperatures well below $T_comp$ using a two-sublattice model.

@article{PhysRevB.109.094404, abstract = {We present a comprehensive study of the magnetic properties of the strongly anisotropic ferrimagnet ${\mathrm{ErFe}}_{5}{\mathrm{Al}}_{7}$ in pulsed magnetic fields up to 30 T applied along the hard magnetization axis within the basal plane of the tetragonal lattice around the compensation temperature (${T}_{\mathrm{comp}}$). Macroscopic measurements showed two anomalies at about 8 T and 25 T in a small temperature range around ${T}_{\mathrm{comp}}$. High-field x-ray magnetic circular dichroism (XMCD) data at the Er ${M}_{5}$- and the Fe ${L}_{3}$-edge resonances provide insight into the element-selective magnetization processes, revealing a coherent rotation of Er $4f$ and Fe $3d$ moments, with stepwise jumps including an unexpected one from an easy to a hard magnetization axis. XMCD at the Er ${L}_{3}$-edge resonance elucidates the role of Er $5d$ electrons in coupling the Er $4f$ and the Fe $3d$ moments. Finally, an in-plane anisotropy constant was evaluated from a simulation of the magnetization process at temperatures well below ${T}_{\mathrm{comp}}$ using a two-sublattice model.}, added-at = {2024-03-18T11:25:53.000+0100}, author = {Yamamoto, Sh. and Gorbunov, D. I. and Prokhnenko, O. and Weschke, E. and Miyata, A. and Diaz-Ortega, I. F. and Strohm, C. and Duc, F. and Henriques, M. S. and Gazizulina, A. and Uhlarz, M. and Mathon, O. and Andreev, A. V. and Nojiri, H. and Wosnitza, J.}, biburl = {https://www.bibsonomy.org/bibtex/208f8570ea7922f442ce0e13ac012c915/ctqmat}, day = 05, description = {Phys. Rev. B 109, 094404 (2024) - Field-induced magnetic transitions in the highly anisotropic ferrimagnet ${\text{ErFe}}_{5}{\text{Al}}_{7}$ studied by high-field x-ray magnetic dichroism}, doi = {10.1103/PhysRevB.109.094404}, interhash = {90a3c3cc04931c23f42999a3617748ef}, intrahash = {08f8570ea7922f442ce0e13ac012c915}, journal = {Phys. Rev. B}, keywords = {b}, month = {03}, number = 9, numpages = {11}, pages = 094404, publisher = {American Physical Society}, timestamp = {2024-03-18T11:25:53.000+0100}, title = {Field-induced magnetic transitions in the highly anisotropic ferrimagnet ErFe$_{\mathbf{5}}$Al$_{\mathbf{7}}$ studied by high-field x-ray magnetic dichroism}, url = {https://link.aps.org/doi/10.1103/PhysRevB.109.094404}, volume = 109, year = 2024 }