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Condensed Matter > Strongly Correlated Electrons

Title: Emergence of spin-orbit order in the spinel CuCr$_2$O$_4$

Abstract: We determined the magnetic structure of CuCr$_2$O$_4$ using neutron diffraction and irreducible representation analysis. The measurements identified a new phase between 155 K and 125 K as nearly collinear magnetic ordering in the Cr pyrochlore lattice. Below 125 K, a Cu-Cr ferrimagnetic component develops the noncollinear order. Along with the simultaneously obtained O positions and the quantum effect of spin-orbit coupling, the magnetic structure is understood to involve spin-orbit ordering, accompanied by an appreciably deformed orbital of presumably spin-only Cu and Cr.
Subjects: Strongly Correlated Electrons (cond-mat.str-el)
Cite as: arXiv:1803.06447 [cond-mat.str-el]
  (or arXiv:1803.06447v1 [cond-mat.str-el] for this version)

Submission history

From: Keisuke Tomiyasu [view email]
[v1] Sat, 17 Mar 2018 02:16:54 GMT (1750kb)