Antiferromagnetic ordering and dipolar interactions of YbAlO3

Wu, L. S.1,2; Nikitin, S. E.3,4; Brando, M.3; Vasylechko, L.5; Ehlers, G.6; Frontzek, M.1; Savici, A. T.1; Sala, G.1; Christianson, A. D.1,7; Lumsden, M. D.1; Podlesnyak, A.1

2019-05-09

10.1103/PhysRevB.99.195117

PHYSICAL REVIEW B   影响因子和分区

2469-9950

2469-9969

In this paper we report low-temperature magnetic properties of the rare-earth perovskite material YbAlO3. Results of elastic and inelastic neutron scattering experiment, magnetization measurements along with the crystalline electrical field (CEF) calculations, suggest that the ground state of Yb moments is a strongly anisotropic Kramers doublet, and the moments are confined in the ab plane, pointing at an angle of phi = +/- 23.5 degrees to the a axis. With temperature decreasing below T-N = 0.88 K, Yb moments order into the coplanar but noncollinear antiferromagnetic (AFM) structure AxGy, where the moments are pointed along their easy axes. In addition, we highlight the importance of the dipole-dipole interaction, which selects the type of magnetic ordering and may be crucial for understanding magnetic properties of other rare-earth orthorhombic perovskites. Further analysis of the broad diffuse neutron scattering shows that one-dimensional interaction along the c axis is dominant and suggests YbAlO3 as a new member of one-dimensional quantum magnets.

SCI ; EI

英语

其他

DFG[BR 4110/1-1]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000467384300002

AMER PHYSICAL SOC

20192307000687

Aluminum compounds ; Ground state ; Magnetic properties ; Neutron scattering ; Perovskite ; Rare earths ; Temperature ; Ytterbium ; Ytterbium compounds

Minerals:482.2 ; Rare Earth Metals:547.2 ; Thermodynamics:641.1 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Inorganic Compounds:804.2

PHYSICS

Web of Science

1.Oak Ridge Natl Lab, Neutron Scattering Div, Oak Ridge, TN 37831 USA
2.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
3.Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany
4.Tech Univ Dresden, Inst Festkorper & Mat Phys, D-01069 Dresden, Germany
5.Lviv Polytech Natl Univ, UA-79013 Lvov, Ukraine
6.Oak Ridge Natl Lab, Neutron Technol Div, Oak Ridge, TN 37831 USA
7.Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

Wu, L. S.,Nikitin, S. E.,Brando, M.,et al. Antiferromagnetic ordering and dipolar interactions of YbAlO3[J]. PHYSICAL REVIEW B,2019,99(19).

Wu, L. S..,Nikitin, S. E..,Brando, M..,Vasylechko, L..,Ehlers, G..,...&Podlesnyak, A..(2019).Antiferromagnetic ordering and dipolar interactions of YbAlO3.PHYSICAL REVIEW B,99(19).

Wu, L. S.,et al."Antiferromagnetic ordering and dipolar interactions of YbAlO3".PHYSICAL REVIEW B 99.19(2019).