Magnetic order and crystal field excitations in Er2Ru2O7: a neutron scattering study

被引：14

作者：

Gardner, J. S. ^{[1
,2
]}

Ehlers, G. ^{[3
]}

机构：

[1] Indiana Univ, Dept Phys, Bloomington, IN 47408 USA

[2] NIST, NCNR, Gaithersburg, MD 20899 USA

[3] Oak Ridge Natl Lab, SNS, Oak Ridge, TN 37831 USA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 43期

关键词：

FRUSTRATED PYROCHLORE ANTIFERROMAGNET; R2RU2O7; R; DIFFRACTION; SUPERCONDUCTIVITY; DYNAMICS; HO2RU2O7; TB2TI2O7; SR2RUO4; GROWTH; SRRUO3;

D O I：

10.1088/0953-8984/21/43/436004

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The magnetic pyrochlore Er2Ru2O7 has been studied with neutron scattering and susceptibility measurements down to a base temperature of 270 mK. For the low temperature phase in which the Er sublattice orders, new magnetic Bragg peaks are reported which can be indexed with integer (hkl) for a face centered cubic cell. Inelastic measurements reveal a wealth of crystal field levels of the Er ion and a copious amount of magnetic scattering below 15 meV. The three lowest groups of crystal field levels are at 6.7, 9.1 and 18.5 meV.

引用

页数：6

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