English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse
  1. View item / 
  2. Item Summary

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Towards understanding the magnetic properties of the breathing pyrochlore compound Ba(3)Yb(2)Zn(5)O(11)through single-crystal studies

MPS-Authors
/persons/resource/persons229082

Rau,  Jeffrey G.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Dissanayake, S., Shi, Z., Rau, J. G., Bag, R., Steinhardt, W., Butch, N. P., et al. (2022). Towards understanding the magnetic properties of the breathing pyrochlore compound Ba(3)Yb(2)Zn(5)O(11)through single-crystal studies. npj Quantum Materials, 7(1): 77. doi:10.1038/s41535-022-00488-w.


Cite as: https://hdl.handle.net/21.11116/0000-000B-4CB9-0
Abstract
Ba3Yb2Zn5O11 is exceptional among breathing pyrochlore compounds for being in the nearly-decoupled limit where inter-tetrahedron interactions are weak, hosting isolated clusters or molecular magnet-like tetrahedra of magnetic ytterbium (Yb3+) ions. In this work, we present the study carried out on single-crystal samples of the breathing pyrochlore Ba3Yb2Zn5O11, using a variety of magnetometry and neutron scattering techniques along with theoretical modeling. We employ inelastic neutron scattering to investigate the magnetic dynamics as a function of applied field (with respect to both magnitude and direction) down to a temperature of 70 mK, where inelastic scattering reveals dispersionless bands of excitations as found in earlier powder sample studies, in good agreement with a single-tetrahedron model. However, diffuse neutron scattering at zero field and dc-susceptibility at finite field exhibit features suggesting the presence of excitations at low-energy that are not captured by the single tetrahedron model. Analysis of the local structure down to 2 K via pair distribution function analysis finds no evidence of structural disorder. We conclude that effects beyond the single tetrahedron model are important in describing the low-energy, low-temperature physics of Ba3Yb2Zn5O11, but their nature remains undetermined.