TY  - JOUR
AU  - Yamamoto, Shingo
AU  - Gorbunov, D. I.
AU  - Prokhnenko, O.
AU  - Weschke, E.
AU  - Miyata, A.
AU  - Diaz-Ortega, I. F.
AU  - Strohm, Cornelius
AU  - Duc, F.
AU  - Henriques, M. S.
AU  - Gazizulina, A.
AU  - Uhlarz, M.
AU  - Mathon, O.
AU  - Andreev, A. V.
AU  - Nojiri, H.
AU  - Wosnitza, J.
TI  - Field-induced magnetic transitions in the highly anisotropic ferrimagnet ErFe<sub>5</sub>Al<sub>7</sub> studied by high-field x-ray magnetic dichroism
JO  - Physical review / B
VL  - 109
IS  - 9
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - PUBDB-2024-07592
SP  - 094404
PY  - 2024
AB  - We present a comprehensive study of the magnetic properties of the strongly anisotropic ferrimagnet ErFe<sub>5</sub>Al<sub>7</sub> 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<sub>comp</sub>). Macroscopic measurements showed two anomalies at about 8 T and 25 T in a small temperature range around 𝑇<sub>comp</sub>. High-field x-ray magnetic circular dichroism (XMCD) data at the Er 𝑀5- and the Fe 𝐿3-edge resonances provide insight into the element-selective magnetization processes, revealing a coherent rotation of Er 4⁢𝑓 and Fe 3⁢𝑑 moments, with stepwise jumps including an unexpected one from an easy to a hard magnetization axis. XMCD at the Er 𝐿3-edge resonance elucidates the role of Er 5⁢𝑑 electrons in coupling the Er 4⁢𝑓 and the Fe 3⁢𝑑 moments. Finally, an in-plane anisotropy constant was evaluated from a simulation of the magnetization process at temperatures well below 𝑇<sub>comp</sub> using a two-sublattice model.   
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001199394400001
DO  - DOI:10.1103/PhysRevB.109.094404
UR  - https://bib-pubdb1.desy.de/record/619387
ER  -