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Title: Structure symmetry determination and magnetic evolution in Sr2Ir1–xRhxO4

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1];  [2];  [2];  [3];  [2];  [2];  [2];  [4];  [5]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Kentucky, Lexington, KY (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Kentucky, Lexington, KY (United States); Renmin Univ. of China, Beijing (China)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  5. Univ. of Kentucky, Lexington, KY (United States)

We use single-crystal neutron diffraction to determine the crystal structure symmetry and to study the magnetic evolution in the rhodium doped iridates Sr2Ir1–xRhxO4 (0 ≤ x ≤ 0.16). Throughout this doping range, the crystal structure retains a tetragonal symmetry (space group I41/a) with two distinct magnetic Ir sites in the unit cell forming staggered IrO6 rotation. Upon Rh doping, the magnetic order is suppressed and the magnetic moment of Ir4+ is reduced from 0.21 μB/Ir for x = 0 to 0.18 μB/Ir for x = 0.12. As a result, the magnetic structure at x = 0.12 is different from that of the parent compound while the moments remain in the basal plane.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1234351
Alternate ID(s):
OSTI ID: 1226873
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 20; ISSN 1098-0121
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 42 works
Citation information provided by
Web of Science

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Cited By (9)

Symmetry breaking of in-plane anisotropic magnetoresistance with temperature in La-doped S r 2 Ir O 4 films journal August 2019
Recent progress on correlated electron systems with strong spin–orbit coupling journal August 2016
Preferential quenching of 5 d antiferromagnetic order in Sr 3 (Ir 1− x Mn x ) 2 O 7 journal April 2019
Charge partitioning and anomalous hole doping in Rh-doped Sr 2 IrO 4 journal February 2017
Giant anisotropic magnetoresistance and nonvolatile memory in canted antiferromagnet Sr2IrO4 journal May 2019
First-principles calculation of spin and orbital contributions to magnetically ordered moments in Sr 2 IrO 4 journal April 2020
The J eff = 1/2 Antiferromagnet Sr 2 IrO 4 : A Golden Avenue toward New Physics and Functions journal October 2019
Recent progress on correlated electron systems with strong spin-orbit coupling text January 2015
The Jeff=1/2 antiferromagnet Sr2IrO4: A golden avenue toward new physics and functions text January 2021

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