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Title: Magnetic structure of the quasi-one-dimensional L a 3 Os O 7 as determined by neutron powder diffraction

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1];  [2];  [1];  [1]
  1. The Ohio State Univ., Columbus, OH (United States)
  2. The Ohio State Univ., Columbus, OH (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Insulating 5d3 La3OsO7 and the isostructural hole-doped analog La2.8Ca0.2OsO7 that feature pseudo-one-dimensional zigzag chains of corner-sharing OsO6 octahedra were synthesized and their magnetic and electrical transport properties characterized. Both of these compounds are insulating antiferromagnets. Moreover, for long range magnetic order between the antiferromagnetic chains we determined with a propagation vector k = 1/2,1/2,1 and TN = 45 and 33 K the parent and doped materials. An Os5+ moment of 1.7(1)μB for La3OsO7 and 1.2(2)μB for La2.8Ca0.2OsO7 is refined. The long range magnetic structure is compared to the isostructural compounds La3RuO7 and La3MoO7, both of which adopt different magnetic structures.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725; FG02-95ER40900
OSTI ID:
1295129
Alternate ID(s):
OSTI ID: 1222856
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 13; ISSN 1098-0121
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Cited By (1)

Block excitonic condensate at n = 3.5 in a spin-orbit coupled t 2 g multiorbital Hubbard model journal April 2019