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Title: Evolution of magnetic and orbital properties in the magnetically diluted A -site spinel Cu 1 x Zn x Rh 2 O 4

Abstract

In frustrated spinel antiferromagnets, dilution with nonmagnetic ions can be a powerful strategy for probing unconventional spin states or uncovering interesting phenomena. Here, we present x-ray, neutron scattering, and thermodynamic studies of the effects of magnetic dilution of the tetragonally distorted A-site spinel antiferromagnet, CuRh2O4, with nonmagnetic Zn2+ ions. Our data confirm the helical spin order recently identified at low temperatures in this material, and further demonstrate a systematic suppression of the associated Néel temperature with increasing site dilution towards a continuous transition with critical doping of xspin ~0.44. Interestingly, this critical doping is demonstrably distinct from a second structural critical point at xJT ~0.6, which is consistent with the suppression of orbital order on the A site through a classical percolative mechanism. In conclusion, this anomalously low value for xspin is confirmed via multiple measurements, and is inconsistent with predictions of classical percolation theory, suggesting that the spin transition in this material is driven by an enhancement of preexisting spin fluctuations with weak dilution.

Authors:
 [1];  [1];  [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2]
  1. Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1484133
Alternate Identifier(s):
OSTI ID: 1441121
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 97; Journal Issue: 21; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Zakrzewski, A. V., Gangopadhyay, S., MacDougall, Gregory J., Aczel, Adam A., Calder, Stuart A., and Williams, Travis J. Evolution of magnetic and orbital properties in the magnetically diluted A-site spinel Cu1–xZnxRh2O4. United States: N. p., 2018. Web. doi:10.1103/PhysRevB.97.214411.
Zakrzewski, A. V., Gangopadhyay, S., MacDougall, Gregory J., Aczel, Adam A., Calder, Stuart A., & Williams, Travis J. Evolution of magnetic and orbital properties in the magnetically diluted A-site spinel Cu1–xZnxRh2O4. United States. https://doi.org/10.1103/PhysRevB.97.214411
Zakrzewski, A. V., Gangopadhyay, S., MacDougall, Gregory J., Aczel, Adam A., Calder, Stuart A., and Williams, Travis J. Mon . "Evolution of magnetic and orbital properties in the magnetically diluted A-site spinel Cu1–xZnxRh2O4". United States. https://doi.org/10.1103/PhysRevB.97.214411. https://www.osti.gov/servlets/purl/1484133.
@article{osti_1484133,
title = {Evolution of magnetic and orbital properties in the magnetically diluted A-site spinel Cu1–xZnxRh2O4},
author = {Zakrzewski, A. V. and Gangopadhyay, S. and MacDougall, Gregory J. and Aczel, Adam A. and Calder, Stuart A. and Williams, Travis J.},
abstractNote = {In frustrated spinel antiferromagnets, dilution with nonmagnetic ions can be a powerful strategy for probing unconventional spin states or uncovering interesting phenomena. Here, we present x-ray, neutron scattering, and thermodynamic studies of the effects of magnetic dilution of the tetragonally distorted A-site spinel antiferromagnet, CuRh2O4, with nonmagnetic Zn2+ ions. Our data confirm the helical spin order recently identified at low temperatures in this material, and further demonstrate a systematic suppression of the associated Néel temperature with increasing site dilution towards a continuous transition with critical doping of xspin ~0.44. Interestingly, this critical doping is demonstrably distinct from a second structural critical point at xJT ~0.6, which is consistent with the suppression of orbital order on the A site through a classical percolative mechanism. In conclusion, this anomalously low value for xspin is confirmed via multiple measurements, and is inconsistent with predictions of classical percolation theory, suggesting that the spin transition in this material is driven by an enhancement of preexisting spin fluctuations with weak dilution.},
doi = {10.1103/PhysRevB.97.214411},
journal = {Physical Review B},
number = 21,
volume = 97,
place = {United States},
year = {Mon Jun 11 00:00:00 EDT 2018},
month = {Mon Jun 11 00:00:00 EDT 2018}
}

Journal Article:

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Cited by: 7 works
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Figures / Tables:

FIG. 1 FIG. 1: (a) Room temperature crystal structure of tetragonally-distorted spinel CuRh2O4. Green spheres are Cu2+ ions; Blue Rh3+; Red O2- . A-site tetrahedra and B-site octahedra are depicted with green and blue faces, respectively. (b) Connectivity of nearest-neighbor Cu2+ sites. (c) Crystal field splitting of d-orbital energy levels of A-sitesmore » in a tetragonally-distorted spinel with $c/a$ > 1. (d) Crystal field splitting of d-orbital energy levels of B-sites in a tetragonally-distorted spinel.« less

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Works referenced in this record:

Quantum Order by Disorder in Frustrated Diamond Lattice Antiferromagnets
journal, July 2008


Selective sublattice dilution in ordered magnetic compounds: A new kind of percolation problem
journal, September 1980

  • Scholl, F.; Binder, K.
  • Zeitschrift f�r Physik B Condensed Matter, Vol. 39, Issue 3
  • DOI: 10.1007/BF01292669

Spin liquids in frustrated magnets
journal, March 2010


Experimental evidence of a collinear antiferromagnetic ordering in the frustrated CoAl 2 O 4 spinel
journal, November 2013


Magnetic frustration on the diamond lattice of the A -site magnetic spinels CoAl 2 x Ga x O 4 : The role of lattice expansion and site disorder
journal, September 2009


Order-by-disorder and spiral spin-liquid in frustrated diamond-lattice antiferromagnets
journal, May 2007

  • Bergman, Doron; Alicea, Jason; Gull, Emanuel
  • Nature Physics, Vol. 3, Issue 7
  • DOI: 10.1038/nphys622

Spin Glass Order by Antisite Disorder in the Highly Frustrated Spinel Oxide CoAl 2 O 4
journal, February 2013

  • Hanashima, Kentaro; Kodama, Yuta; Akahoshi, Daisuke
  • Journal of the Physical Society of Japan, Vol. 82, Issue 2
  • DOI: 10.7566/JPSJ.82.024702

Superconductivity in spinel-type compounds CuRh 2 S 4 and CuRh 2 Se 4
journal, May 1995


Antiferromagnetic transition in CuRh2O4
journal, April 1999


Phase transformation in CuRh2O4: a powder neutron diffraction study
journal, January 1999


Magnetic ordering and spin excitations in the frustrated magnet Mn Sc 2 S 4
journal, January 2006


Approaching the true ground state of frustrated A -site spinels: A combined magnetization and polarized neutron scattering study
journal, May 2014


Growth of ZnRh2O4 Single Crystals
journal, May 1968


Recent advances in magnetic structure determination by neutron powder diffraction
journal, October 1993


Transport and band structure studies of crystalline ZnRh 2 O 4
journal, February 2010

  • Mansourian-Hadavi, Negar; Wansom, Supaporn; Perry, Nicola H.
  • Physical Review B, Vol. 81, Issue 7
  • DOI: 10.1103/PhysRevB.81.075112

Superconductivity in Thiospinel CuRh 2 S 4
journal, August 1992

  • Bitoh, Teruo; Hagino, Takatsugu; Seki, Yoshitaka
  • Journal of the Physical Society of Japan, Vol. 61, Issue 8
  • DOI: 10.1143/JPSJ.61.3011

Spin order and dynamics in the diamond-lattice Heisenberg antiferromagnets CuRh 2 O 4 and CoRh 2 O 4
journal, August 2017


Kinetically inhibited order in a diamond-lattice antiferromagnet
journal, September 2011

  • MacDougall, G. J.; Gout, D.; Zarestky, J. L.
  • Proceedings of the National Academy of Sciences, Vol. 108, Issue 38
  • DOI: 10.1073/pnas.1107861108

Spin liquid in a single crystal of the frustrated diamond lattice antiferromagnet CoAl 2 O 4
journal, September 2011


Spin-Orbital Singlet and Quantum Critical Point on the Diamond Lattice: FeSc 2 S 4
journal, March 2009


Classical antiferromagnetism in Mn Sc 2 S 4 : A Sc 45 NMR study
journal, October 2005


Frustrated spin one on a diamond lattice in NiRh 2 O 4
journal, March 2018


Theory of the ordered phase in A -site antiferromagnetic spinels
journal, October 2008


Multi-step magnetic ordering in frustrated thiospinel MnSc 2 S 4
journal, March 2007


Spin and Orbital Frustration in MnSc 2 S 4 and FeSc 2 S 4
journal, March 2004


Melting of antiferromagnetic ordering in spinel oxide CoAl 2 O 4
journal, March 2007


ZnRh2O4: A p -type semiconducting oxide with a valence band composed of a low spin state of Rh3+ in a 4d6 configuration
journal, February 2002

  • Mizoguchi, Hiroshi; Hirano, Masahiro; Fujitsu, Satoru
  • Applied Physics Letters, Vol. 80, Issue 7
  • DOI: 10.1063/1.1450252

Spiral spin-liquid and the emergence of a vortex-like state in MnSc2S4
journal, October 2016

  • Gao, Shang; Zaharko, Oksana; Tsurkan, Vladimir
  • Nature Physics, Vol. 13, Issue 2
  • DOI: 10.1038/nphys3914

Revisiting the ground state of CoAl 2 O 4 : Comparison to the conventional antiferromagnet MnAl 2 O 4
journal, November 2016


The high-resolution powder diffractometer at the high flux isotope reactor
journal, March 2010


Geometric frustration in the cubic spinels M Al 2 O 4 ( M = Co , Fe, and Mn)
journal, November 2005


Spin excitations in frustrated A -site spinels investigated with inelastic neutron scattering
journal, April 2009


Ordering due to disorder in a frustrated vector antiferromagnet
journal, April 1989


A magnetic study of frustrated and
journal, May 2006


Magnetic properties of normal spinels with only a-a interactions
journal, January 1964


Impurity effects in highly frustrated diamond-lattice antiferromagnets
journal, August 2011


Spin and orbital frustration in FeSc 2 S 4 probed by Sc 45 NMR
journal, April 2006


Order as an effect of disorder
journal, January 1980


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.