Yruo3: a quantum weak ferromagnet
Type de document :
Article dans une revue scientifique: Article original
URL permanente :
Titre :
Yruo3: a quantum weak ferromagnet
Auteur(s) :
Ji, Kunlang [Auteur]
Paul, Arpita [Auteur]
Solana Madruga, Elena [Auteur]
Arevalo Lopez, Angel [Auteur]
Waghmare, Umesh V. [Auteur]
Attfield, J. Paul [Auteur]
Paul, Arpita [Auteur]
Solana Madruga, Elena [Auteur]
Arevalo Lopez, Angel [Auteur]
Waghmare, Umesh V. [Auteur]
Attfield, J. Paul [Auteur]
Titre de la revue :
Physical Review Materials
Nom court de la revue :
Phys. Rev. Mater.
Numéro :
4
Date de publication :
2020-09-21
ISSN :
2475-9953
Discipline(s) HAL :
Chimie/Chimie inorganique
Résumé en anglais : [en]
The perovskite YRuO3 containing low-spin d5Ru3+ has a Pnma orthorhombic structure with elongated RuO6 octahedra evidencing orbital order and is insulating to low temperatures with a band gap of 70 meV. Canted antiferromagnetic ...
Lire la suite >The perovskite YRuO3 containing low-spin d5Ru3+ has a Pnma orthorhombic structure with elongated RuO6 octahedra evidencing orbital order and is insulating to low temperatures with a band gap of 70 meV. Canted antiferromagnetic Ru3+ spin order is observed below TC=97K, and magnetization plateaus that emerge below 62 K reveal a quantum weak ferromagnetic state where 1/8 of the spins are reversed, reflecting extreme single-ion anisotropy resulting from the strong spin-orbit coupling of the d5Ru3+ ion. Dynamic effects of the reversed spins give rise to an unusual negative AC susceptibility response, and a partial freezing of this motion occurs at 27 K.Lire moins >
Lire la suite >The perovskite YRuO3 containing low-spin d5Ru3+ has a Pnma orthorhombic structure with elongated RuO6 octahedra evidencing orbital order and is insulating to low temperatures with a band gap of 70 meV. Canted antiferromagnetic Ru3+ spin order is observed below TC=97K, and magnetization plateaus that emerge below 62 K reveal a quantum weak ferromagnetic state where 1/8 of the spins are reversed, reflecting extreme single-ion anisotropy resulting from the strong spin-orbit coupling of the d5Ru3+ ion. Dynamic effects of the reversed spins give rise to an unusual negative AC susceptibility response, and a partial freezing of this motion occurs at 27 K.Lire moins >
Langue :
Anglais
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Collections :
Équipe(s) de recherche :
Matériaux inorganiques, structures, systèmes et propriétés (MISSP)
Date de dépôt :
2022-03-02T07:13:33Z