We performed soft x-ray spectroscopic studies of the ferrimagnet TbFe5Al7 with strong easy-plane anisotropy in pulsed magnetic fields up to 29 T along with bulk magnetization and magnetostriction measurements. We observed pronounced amplitude changes of x-ray magnetic circular dichroism and x-ray absorption spectra at the field-induced magnetic transition. This microscopically evidences the simultaneous rotation of the Tb 4f and Fe 3d magnetic moments from a collinear ferrimagnetic order along the 100 axis to a state with the moments close to 010, the other easy-axis direction of the tetragonal lattice in magnetic fields applied along the 100 axis. We determined the magnetic-anisotropy constant of TbFe5Al7 by simulating the high-field macro- and microscopic magnetization process using a two-sublattice model.
Description
High-field soft-x-ray dichroism of a hard ferrimagnet with easy-plane anisotropy
%0 Journal Article
%1 PhysRevB.104.064405
%A Yamamoto, Sh.
%A Gorbunov, D. I.
%A Diaz-Ortega, I. F.
%A Miyata, A.
%A Kihara, T.
%A Kotani, Y.
%A Nakamura, T.
%A Mushnikov, N. V.
%A Andreev, A. V.
%A Nojiri, H.
%A Wosnitza, J.
%D 2021
%I American Physical Society
%J Phys. Rev. B
%K b
%N 6
%P 064405
%R 10.1103/PhysRevB.104.064405
%T High-field soft-x-ray dichroism of a hard ferrimagnet with easy-plane anisotropy
%U https://journals.aps.org/prb/pdf/10.1103/PhysRevB.104.064405
%V 104
%X We performed soft x-ray spectroscopic studies of the ferrimagnet TbFe5Al7 with strong easy-plane anisotropy in pulsed magnetic fields up to 29 T along with bulk magnetization and magnetostriction measurements. We observed pronounced amplitude changes of x-ray magnetic circular dichroism and x-ray absorption spectra at the field-induced magnetic transition. This microscopically evidences the simultaneous rotation of the Tb 4f and Fe 3d magnetic moments from a collinear ferrimagnetic order along the 100 axis to a state with the moments close to 010, the other easy-axis direction of the tetragonal lattice in magnetic fields applied along the 100 axis. We determined the magnetic-anisotropy constant of TbFe5Al7 by simulating the high-field macro- and microscopic magnetization process using a two-sublattice model.
@article{PhysRevB.104.064405,
abstract = {We performed soft x-ray spectroscopic studies of the ferrimagnet TbFe5Al7 with strong easy-plane anisotropy in pulsed magnetic fields up to 29 T along with bulk magnetization and magnetostriction measurements. We observed pronounced amplitude changes of x-ray magnetic circular dichroism and x-ray absorption spectra at the field-induced magnetic transition. This microscopically evidences the simultaneous rotation of the Tb 4f and Fe 3d magnetic moments from a collinear ferrimagnetic order along the [100] axis to a state with the moments close to [010], the other easy-axis direction of the tetragonal lattice in magnetic fields applied along the [100] axis. We determined the magnetic-anisotropy constant of TbFe5Al7 by simulating the high-field macro- and microscopic magnetization process using a two-sublattice model.},
added-at = {2023-03-13T16:00:32.000+0100},
author = {Yamamoto, Sh. and Gorbunov, D. I. and Diaz-Ortega, I. F. and Miyata, A. and Kihara, T. and Kotani, Y. and Nakamura, T. and Mushnikov, N. V. and Andreev, A. V. and Nojiri, H. and Wosnitza, J.},
biburl = {https://www.bibsonomy.org/bibtex/27db555eab638e3dadd0d31673914d2b7/ctqmat},
day = 21,
description = {High-field soft-x-ray dichroism of a hard ferrimagnet with easy-plane anisotropy},
doi = {10.1103/PhysRevB.104.064405},
interhash = {cfd7ac06b5edb5f841d50eb6984607dd},
intrahash = {7db555eab638e3dadd0d31673914d2b7},
journal = {Phys. Rev. B},
keywords = {b},
month = {08},
number = 6,
numpages = {7},
pages = 064405,
publisher = {American Physical Society},
timestamp = {2023-03-13T16:00:32.000+0100},
title = {High-field soft-x-ray dichroism of a hard ferrimagnet with easy-plane anisotropy},
url = {https://journals.aps.org/prb/pdf/10.1103/PhysRevB.104.064405},
volume = 104,
year = 2021
}