Elastic and magnetoelastic properties of TbMnO3 single crystal by nanosecond time resolved acoustics and first-principles calculations

Autor: P Hemme, C-H Li, P Djemia, P Rovillain, S Houver, Y Gallais, A Sacuto, H Sakata, S Nowak, B Baptiste, E Charron, B Perrin, L Belliard, M Cazayous
Přispěvatelé: Laboratoire Matériaux et Phénomènes Quantiques (MPQ (UMR_7162)), Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire des Sciences des Procédés et des Matériaux (LSPM), Institut Galilée-Université Sorbonne Paris Cité (USPC)-Centre National de la Recherche Scientifique (CNRS)-Université Sorbonne Paris Nord, Institut des Nanosciences de Paris (INSP), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Acoustique pour les nanosciences (INSP-E3), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Department of Physics, Faculty of Science and Technology, Tokyo University of Science, UFR de Chimie, Université de Paris, 15 rue Jean Antoine de Baïf, 75013 Paris, France, Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter, IOP Publishing, 2021, 33 (49), pp.495402. ⟨10.1088/1361-648X/ac25ad⟩
ISSN: 0953-8984
1361-648X
Popis: Time resolved pump and probe acoustics and first-principles calculations were employed to assess elastic properties of the TbMnO3 perovskite manganite having orthorhombic symmetry. Measuring sound velocities of bulk longitudinal and shear acoustic waves propagating along at least two different directions in the high symmetry planes (100), (010) and (001), provided a powerful mean to selectively determine the six diagonal elastic constants C 11 = 227 GPa, C 22 = 349 GPa, C 33 = 274 GPa, C 44 = 71 GPa, C 55 = 57 GPa, C 66 = 62 GPa. Among the three remaining off-diagonal ones, C 23 = 103 GPa was determined with a bissectrice direction. Density functional theory calculations with colinear spin-polarized provided complementary insights on their optical, elastic and magnetoelastic properties.
Databáze: OpenAIRE