Magnetic properties of GdT2Zn20 (T = Fe, Co) investigated by x-ray diffraction and spectroscopy
Abstract
In this study, we investigate the magnetic and electronic properties of the GdT2Zn20 (T=Fe and Co) compounds using x-ray resonant magnetic scattering (XRMS), x-ray absorption near-edge structure (XANES), and x-ray magnetic circular dichroism (XMCD). The XRMS measurements reveal that GdCo2Zn20 has a commensurate antiferromagnetic spin structure with a magnetic propagation vector →/τ = (12,12,12) below the Néel temperature (TN ~ 5.7 K). Only the Gd ions carry a magnetic moment forming an antiferromagnetic structure with magnetic representation Γ6. For the ferromagnetic GdFe2Zn20 compound, an extensive investigation was performed at low temperature and under magnetic field using XANES and XMCD. A strong XMCD signal of about 12.5% and 9.7% is observed below the Curie temperature (TC ~ 85K) at the Gd L2 and L3 edges, respectively. In addition, a small magnetic signal of about 0.06% of the jump is recorded at the Zn K edge, suggesting that the Zn 4p states are spin polarized by the Gd 5d extended orbitals.
- Authors:
-
- Argonne National Lab. (ANL), Argonne, IL (United States); Washington Univ., St. Louis, MO (United States); Brookhaven National Lab. (BNL), Upton, NY (United States). Biological, Environmental & Climate Sciences Dept.
- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Univ. Federal do ABC (UFABC), Sao Paulo (Brazil)
- Univ. Estadual de Campinas, Sao Paulo (Brazil)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1240694
- Alternate Identifier(s):
- OSTI ID: 1236093
- Report Number(s):
- BNL-111807-2016-JA
Journal ID: ISSN 2469-9950; PRBMDO; R&D Project: PO011; KC0201060
- Grant/Contract Number:
- SC00112704; AC-02-06CH11357
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 93; Journal Issue: 2; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
J. R. L. Mardegan, Fabbris, G., Francoual, S., Veiga, L. S. I., Strempfer, J., Haskel, D., Ribeiro, R. A., Avila, M. A., and Giles, C. Magnetic properties of GdT2Zn20 (T = Fe, Co) investigated by x-ray diffraction and spectroscopy. United States: N. p., 2016.
Web. doi:10.1103/PhysRevB.93.024421.
J. R. L. Mardegan, Fabbris, G., Francoual, S., Veiga, L. S. I., Strempfer, J., Haskel, D., Ribeiro, R. A., Avila, M. A., & Giles, C. Magnetic properties of GdT2Zn20 (T = Fe, Co) investigated by x-ray diffraction and spectroscopy. United States. https://doi.org/10.1103/PhysRevB.93.024421
J. R. L. Mardegan, Fabbris, G., Francoual, S., Veiga, L. S. I., Strempfer, J., Haskel, D., Ribeiro, R. A., Avila, M. A., and Giles, C. 2016.
"Magnetic properties of GdT2Zn20 (T = Fe, Co) investigated by x-ray diffraction and spectroscopy". United States. https://doi.org/10.1103/PhysRevB.93.024421. https://www.osti.gov/servlets/purl/1240694.
@article{osti_1240694,
title = {Magnetic properties of GdT2Zn20 (T = Fe, Co) investigated by x-ray diffraction and spectroscopy},
author = {J. R. L. Mardegan and Fabbris, G. and Francoual, S. and Veiga, L. S. I. and Strempfer, J. and Haskel, D. and Ribeiro, R. A. and Avila, M. A. and Giles, C.},
abstractNote = {In this study, we investigate the magnetic and electronic properties of the GdT2Zn20 (T=Fe and Co) compounds using x-ray resonant magnetic scattering (XRMS), x-ray absorption near-edge structure (XANES), and x-ray magnetic circular dichroism (XMCD). The XRMS measurements reveal that GdCo2Zn20 has a commensurate antiferromagnetic spin structure with a magnetic propagation vector →/τ = (12,12,12) below the Néel temperature (TN ~ 5.7 K). Only the Gd ions carry a magnetic moment forming an antiferromagnetic structure with magnetic representation Γ6. For the ferromagnetic GdFe2Zn20 compound, an extensive investigation was performed at low temperature and under magnetic field using XANES and XMCD. A strong XMCD signal of about 12.5% and 9.7% is observed below the Curie temperature (TC ~ 85K) at the Gd L2 and L3 edges, respectively. In addition, a small magnetic signal of about 0.06% of the jump is recorded at the Zn K edge, suggesting that the Zn 4p states are spin polarized by the Gd 5d extended orbitals.},
doi = {10.1103/PhysRevB.93.024421},
url = {https://www.osti.gov/biblio/1240694},
journal = {Physical Review B},
issn = {2469-9950},
number = 2,
volume = 93,
place = {United States},
year = {Tue Jan 26 00:00:00 EST 2016},
month = {Tue Jan 26 00:00:00 EST 2016}
}
Web of Science
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