The magnetic structure of DyFeO3 revisited: Fe spin reorientation and Dy incommensurate magnetic order

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Ritter, C (Author) Other; Vilarinho, R (Author) Other; Agostinho Moreira, JA (Author) FCUP; Mihalik, M (Author) Other; Mihalik, M (Author) Other; Savvin, S (Author) Other

Journal

Title: Journal of Physics Condensed Matter

Vol. 34

ISSN: 0953-8984

Publisher: Institute of Physics Publishing

Indexing

ISI Web of Knowledge - 5 Citations

Scopus

Other information

Authenticus ID: P-00W-EZ0

DOI: 10.1088/1361-648x/ac6787

Abstract (EN): High resolution and high intensity neutron powder diffraction is used to study the ground state magnetic order and the spin reorientation transition in the orthoferrite DyFeO3. The transition from the high temperature k = 0 Gamma(4) (G ( x ) A ( y ) F ( z )) to the low temperature Gamma(1) (A ( x ) G ( y ) C ( z )) type order of the Fe-sublattice is found at T (SR) = 73 K and does not show any thermal hysteresis. Below T (N2) = 4 K the Dy-sublattice orders in an incommensurate magnetic structure with k = [0, 0, 0.028] while the Fe-sublattice keeps its commensurate Gamma(1) type order. DyFeO3 is the first orthoferrite RFeO3 to possess an incommensurate magnetic order of the rare earth sublattice under zero field conditions; an important piece of information neglected in the recent discussion of its multiferroic properties.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9