Direct determination of the spin structure of Nd2Ir2O7 by means of neutron 
diffraction

Guo, H.; Ritter, C.; Komarek, A. C.

doi:10.1103/PhysRevB.94.161102

Item

ITEM ACTIONSEXPORT

Add to Basket

Please note that a newer version of this item is available:
https://pure.mpg.de/pubman/item/item_2353688_5

DetailsSummary

Released

Journal Article

Direct determination of the spin structure of Nd₂Ir₂O₇ by means of neutron diffraction

MPS-Authors

/persons/resource/persons180435

Guo, H.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126701

Komarek, A. C.
Alexander Komarek, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, 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

Guo, H., Ritter, C., & Komarek, A. C. (2016). Direct determination of the spin structure of Nd₂Ir₂O₇ by means of neutron diffraction. Physical Review B, 94(16): 161102, pp. 1-5. doi:10.1103/PhysRevB.94.161102.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-A4F6-9

Abstract

We report on the spin structure of the pyrochlore iridate Nd2Ir2O7 that could be directly determined by means of powder neutron diffraction. Our magnetic structure refinement unravels a so-called all-in/all-out magnetic structure that appears in both the Nd and the Ir sublattice. The ordered magnetic moments at 1.8 K amount to 0.34(1) mu(B)/Ir4+ and 1.27(1) mu(B)/Nd3+. The Nd3+ moment size at 1.8 K is smaller than that expected for the Nd3+ ground state doublet. On the other hand, the size of the ordered moments of the Ir4+ ions at 1.8 K agrees very well with the value expected for a J(eff) = 1/2 state based on the presence of strong spin-orbit coupling in this system. Finally, our measurements reveal a parallel alignment of the Nd3+ moments with the net moment of its six nearest neighboring Ir4+ ions.