Journal Article

PUBDB-2024-07592

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Field-induced magnetic transitions in the highly anisotropic ferrimagnet ErFe$_5$Al$_7$ studied by high-field x-ray magnetic dichroism

Yamamoto, S. (Corresponding author)Extern*XFEL.EU* ; Gorbunov, D. I. ; Prokhnenko, O. ; Weschke, E. ; Miyata, A. ; Diaz-Ortega, I. F. ; Strohm, C.XFEL.EU*DESY* ; Duc, F. ; Henriques, M. S. ; Gazizulina, A. ; Uhlarz, M. ; Mathon, O. ; Andreev, A. V. ; Nojiri, H. ; Wosnitza, J.

2024
Inst. Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevB.109.094404  doi:10.3204/PUBDB-2024-07592

Abstract: We present a comprehensive study of the magnetic properties of the strongly anisotropic ferrimagnet ErFe$_5$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$_{comp}$). 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 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$_{comp}$ using a two-sublattice model.

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Contributing Institute(s):

1. FS-PS Fachgruppe HIBEF (FS-HIBEF)
2. HED (XFEL_E1_HED)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. DFG project G:(GEPRIS)247310070 - SFB 1143: Korrelierter Magnetismus: Von Frustration zu Topologie (247310070) (247310070)
3. DFG project G:(GEPRIS)390858490 - EXC 2147: Komplexität und Topologie in Quantenmaterialien (CT.QMAT) (390858490) (390858490)

Experiment(s):

1. Measurement at external facility

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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