46546 20231127095528.0 doi 10.1103/PhysRevB.91.165111 sideral 93304 ART-2015-93304 eng Cuartero, V. X-ray magnetic circular dichroism study of the magnetic anisotropy on TbMnO3 2015 Access copy available to the general public Unrestricted The magnetic anisotropy of TbMnO3 was explored by means of polarized x-ray absorption spectroscopy and x-ray magnetic circular dichroism (XMCD) measurements at the MnL2, 3 and TbM4, 5 edges as a function of temperature and magnetic-field intensity. The selective magnetometry measurements were compared with the macroscopic magnetic properties on single crystals. XMCD measurements at the TbM4, 5 edge as a function of the magnetic field reproduces quite well the macroscopic magnetic anisotropy at low temperatures with the Tb moments staying confined along their Ising axis within the ab plane, whereas a weak XMCD signal is observed at the MnL2, 3 edge. These results point out that Tb3+ single-ion anisotropy is the only responsible for the magnetic anisotropy on this multiferroic compound at high magnetic fields. Moreover, we found MnL2, 3 XMCD measurements show that the cycloidal antiferromagnetic order is almost unaffected by the applied magnetic field at low temperatures under an applied magnetic field. Therefore, we discuss that this strong Ising nature of Tb3+ ions, through a magnetocrystalline coupling mediated by the oxygen atoms, must play an important role in the field-induced electric polarization flop and therefore in the magnetoelectric coupling on TbMnO3. info:eu-repo/grantAgreement/ES/DGA/CAMRADS info:eu-repo/grantAgreement/ES/MINECO/MAT2011-23791 info:eu-repo/grantAgreement/ES/MINECO/MAT2012-38213-C02-01 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.718 2015 PHYSICS, CONDENSED MATTER 16 / 67 = 0.239 2015 Q1 T1 2.377 2015 Electronic, Optical and Magnetic Materials 2015 Q1 Condensed Matter Physics 2015 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Lafuerza, S. Subías, G. Universidad de Zaragoza (orcid)0000-0002-9029-1977 García, J. Schierle, E. Blasco, J. Universidad de Zaragoza (orcid)0000-0002-9706-3272 Herrero-Albillos, J. Universidad de Zaragoza (orcid)0000-0002-0901-8341 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 91, 16 (2015), 165111 [8 pp] Phys. Rev. B, Condens. matter mater. phys. Physical review. B, Condensed matter and materials physics 1098-0121 1814381 http://zaguan.unizar.es/record/46546/files/texto_completo.pdf Versión publicada 133685 http://zaguan.unizar.es/record/46546/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:46546 articulos driver 2023-11-27-09:45:48 ARTICLE