Magnetic ordering in the frustrated pyrochlore Yb2Ru2O7

被引：0

作者：

Bustos, Rocio Ruiz ^{[1
]}

van Duijn, Joost ^{[1
]}

Lamura, Gianrico ^{[2
]}

Manuel, Pascual ^{[3
]}

Sanna, Samuele ^{[4
]}

机构：

[1] Univ Cordoba, Escuela Politecn Super Cordoba, Dept Mecan, Campus Univ Rabanales,Ctra MadridC adiz Km 396, Cordoba 14071, Spain

[2] Consiglio Nazl Ricerch, Dipartimento Fis, SPIN, Via Dodecaneso 33, I-16146 Genoa, Italy

[3] Rutherford Appleton Lab, Sci & Technol Facil Council, ISIS Neutron & Muon Source User Off, Bldg R75,Harwell Campus, Didcot OX11 0QX, England

[4] Univ Bologna, Dipartimento Fis & Astron, Via Zamboni 33, I-40126 Bologna, Italy

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2024年 / 1008卷

关键词：

Pyrochlore; Magnetic ordering; Neutron diffraction; Muon spectroscopy; Yb2Ru2O7; R2RU2O7; R; TRANSITION;

D O I：

10.1016/j.jallcom.2024.176661

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Yb2Ru2O7 was studied using neutron diffraction and muon spin relaxation measurements to investigate the effect of the Yb anisotropy and Yb-Ru exchange interaction on the magnetic ordering transitions in this material. The Ru moments order into a long range ordered state below 85 K, while the Yb moments start to freeze/order below 20 K, which is at a higher temperature as suggested by previous reported bulk measurements. No structural distortions are observed at the magnetic transitions. Representational analysis shows that the ordering of the Ru and Yb moments can be described by the same irreducible representation. The two magnetic sublattices are, however, antiferromagnetically coupled. Unlike what has been suggested by bulk measurements and has been observed in other members of this family of Ru pyrochlores, the Yb single ion planar anisotropy, surprisingly, does not influence the Ru moment ordering. The ordering of the Ru moments, on the other hand, does influence freezing/ordering of the Yb moments.

引用

页数：6

共 37 条

[1] Novel Y2-xPrxRu2O7 (x=0-2) Pyrochlore Oxides Prepared Using a Soft Chemistry Route and their Electrical Properties [J].