Antiferromagnetic and Orbital Ordering on a Diamond Lattice Near Quantum Criticality

Plumb, K. W.; Morey, J. R.; Rodriguez-Rivera, J. A.; Wu, Hui; Podlesnyak, A. A.; McQueen, T. M.; Broholm, C. L.

doi:10.1103/PhysRevX.6.041055

Title: Antiferromagnetic and Orbital Ordering on a Diamond Lattice Near Quantum Criticality

Abstract

Here, we present neutron scattering measurements on powder samples of the spinel FeSc₂ S ₄ that reveal a previously unobserved magnetic ordering transition occurring at 11.8(2) K. Magnetic ordering occurs subsequent to a subtle cubic-to-tetragonal structural transition that distorts Fe coordinating sulfur tetrahedra and lifts the orbital degeneracy. Furthermore, the orbital ordering is not truly long ranged, but occurs over finite-sized domains that limit magnetic correlation lengths. During the application of 1 GPa hydrostatic pressure appears to destabilize this Néel state, reducing the transition temperature to 8.6(8) K and redistributing magnetic spectral weight to higher energies. The relative magnitudes of ordered ²= 3.1(2) μ$$2\atop{B}$$ and fluctuating moments < δm >= 13(1) μ$$2\atop{B}$$ show that the magnetically ordered state of FeSc ₂ S ₄ is drastically renormalized and close to criticality.

Authors:: Plumb, K. W.; Morey, J. R.; Rodriguez-Rivera, J. A.; Wu, Hui; Podlesnyak, A. A.; McQueen, T. M.; Broholm, C. L.

Publication Date:: Fri Dec 16 00:00:00 EST 2016

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1336888

Alternate Identifier(s):: OSTI ID: 1341577

Grant/Contract Number:: AC02-06CH11357; FG02-08ER46544; AC05-00OR22725

Resource Type:: Published Article

Journal Name:: Physical Review. X

Additional Journal Information:: Journal Name: Physical Review. X Journal Volume: 6 Journal Issue: 4; Journal ID: ISSN 2160-3308

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; condensed matter physics; magnetism; strongly correlated materials

Citation Formats


                    Plumb, K. W., Morey, J. R., Rodriguez-Rivera, J. A., Wu, Hui, Podlesnyak, A. A., McQueen, T. M., and Broholm, C. L. Antiferromagnetic and Orbital Ordering on a Diamond Lattice Near Quantum Criticality.  United States: N. p., 2016. 
Web.  doi:10.1103/PhysRevX.6.041055.

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                    Plumb, K. W., Morey, J. R., Rodriguez-Rivera, J. A., Wu, Hui, Podlesnyak, A. A., McQueen, T. M., & Broholm, C. L. Antiferromagnetic and Orbital Ordering on a Diamond Lattice Near Quantum Criticality.  United States.  https://doi.org/10.1103/PhysRevX.6.041055

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                    Plumb, K. W., Morey, J. R., Rodriguez-Rivera, J. A., Wu, Hui, Podlesnyak, A. A., McQueen, T. M., and Broholm, C. L. Fri .  
"Antiferromagnetic and Orbital Ordering on a Diamond Lattice Near Quantum Criticality".  United States.  https://doi.org/10.1103/PhysRevX.6.041055.

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@article{osti_1336888,

  title        = {Antiferromagnetic and Orbital Ordering on a Diamond Lattice Near Quantum Criticality},

  author       = {Plumb, K. W. and Morey, J. R. and Rodriguez-Rivera, J. A. and Wu, Hui and Podlesnyak, A. A. and McQueen, T. M. and Broholm, C. L.},

  abstractNote = {Here, we present neutron scattering measurements on powder samples of the spinel FeSc 2 S 4 that reveal a previously unobserved magnetic ordering transition occurring at 11.8(2) K. Magnetic ordering occurs subsequent to a subtle cubic-to-tetragonal structural transition that distorts Fe coordinating sulfur tetrahedra and lifts the orbital degeneracy. Furthermore, the orbital ordering is not truly long ranged, but occurs over finite-sized domains that limit magnetic correlation lengths. During the application of 1 GPa hydrostatic pressure appears to destabilize this Néel state, reducing the transition temperature to 8.6(8) K and redistributing magnetic spectral weight to higher energies. The relative magnitudes of ordered 2= 3.1(2) μ$2\atop{B}$ and fluctuating moments < δm >= 13(1) μ$2\atop{B}$ show that the magnetically ordered state of FeSc 2 S 4 is drastically renormalized and close to criticality.},

  doi          = {10.1103/PhysRevX.6.041055},

  journal      = {Physical Review. X},

  number       = 4,

  volume       = 6,

  place        = {United States},

  year         = {Fri Dec 16 00:00:00 EST 2016},

  month        = {Fri Dec 16 00:00:00 EST 2016}

}

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Title: Antiferromagnetic and Orbital Ordering on a Diamond Lattice Near Quantum Criticality

Abstract

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Spin and Orbital Frustration in ${MnSc}_{2} S_{4}$ and ${FeSc}_{2} S_{4}$
journal, March 2004

DISTRIBUTION OF STRAINS AT Fe ²⁺ _A SITE IN THE THIOSPINEL FeSc ₂ S ₄
journal, December 1976

Linear spin wave theory for single-Q incommensurate magnetic structures
journal, March 2015

Less than 50% sublattice polarization in an insulating $S =$ $\frac{3}{2}$ kagomé antiferromagnet at $T \approx 0$
journal, October 1997

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

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

An End to the Drought of Quantum Spin Liquids
journal, September 2008

Spin and orbital frustration in ${FeSc}_{2} S_{4}$ probed by ${}^{45}{Sc}$ NMR
journal, April 2006

The new cold neutron chopper spectrometer at the Spallation Neutron Source: Design and performance
journal, August 2011

Dynamic stripes and resonance in the superconducting and normal phases of ${YBa}_{2} {Cu}_{3} O_{6.5}$ ortho-II superconductor
journal, January 2004

Structural investigations of the compounds ASc2S4 (A=Mn, Fe, Cd)
journal, February 2002

Frustration-induced two-dimensional quantum disordered phase in piperazinium hexachlorodicuprate
journal, September 2001

Orbital Frustration and Resonating Valence Bond State in the Spin-1/2 Triangular Lattice LiNiO ₂
journal, November 1998