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Title: Behavior of the breathing pyrochlore lattice Ba3Yb2Zn5O11 in applied magnetic field

Abstract

The breathing pyrochlore lattice material Ba3Yb2Zn5O11 exists in the nearly decoupled limit, in contrast to most other well-studied breathing pyrochlore compounds. As a result, it constitutes a useful platform to benchmark theoretical calculations of exchange interactions in insulating Yb3+ magnets. Here we study Ba3Yb2Zn5O11 at low temperatures in applied magnetic fields as a further probe of the physics of this model system. Experimentally, we consider the behavior of polycrystalline samples of Ba3Yb2Zn5O11 with a combination of inelastic neutron scattering and heat capacity measurements down to 75 mK and up to fields of 10 T. Consistent with previous work, inelastic neutron scattering finds a level crossing near 3 T, but no significant dispersion of the spin excitations is detected up to the highest applied fields. Refinement of the theoretical model previously determined at zero field can reproduce much of the inelastic neutron scattering spectra and specific heat data. A notable exception is a low temperature peak in the specific heat at ~0.1 K. This may indicate the scale of interactions between tetrahedra or may reflect undetected disorder in Ba3Yb2Zn5O11.

Authors:
 [1];  [2];  [3];  [2];  [4]; ORCiD logo [5];  [6]; ORCiD logo [7]; ORCiD logo [8];  [2];  [9]; ORCiD logo [10]
  1. Univ. of Waterloo, ON (Canada). Dept. of Physics and Astronomy; Max Planck Inst. for the Physics of Complex Systems, Dresden (Germany)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
  4. Univ. of Maryland, College Park, MD (United States). Dept. of Physics. Dept. of Materials Science and Engineering. Center for Nanophysics and Advanced Materials; National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research
  5. Univ. of Maryland, College Park, MD (United States). Dept. of Physics. Center for Nanophysics and Advanced Materials
  6. Univ. of Maryland, College Park, MD (United States). Dept. of Physics. Center for Nanophysics and Advanced Materials; National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research
  7. Colorado State Univ., Fort Collins, CO (United States). Dept. of Physics; Canadian Inst. for Advanced Research, Toronto, ON (Canada)
  8. Colorado State Univ., Fort Collins, CO (United States). Dept. of Physics
  9. Univ. of Waterloo, ON (Canada). Dept. of Physics and Astronomy; Perimeter Inst. for Theoretical Physics, Waterloo, ON (Canada); Canadian Inst. for Advanced Research, Toronto, ON (Canada)
  10. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division. Materials Science & Technology Division
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Waterloo, ON (Canada); Canadian Inst. for Advanced Research, Toronto, ON (Canada); Perimeter Inst. for Theoretical Physics, Waterloo, ON (Canada)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); ORNL Laboratory Directed Research and Development (LDRD) Program; Natural Sciences and Engineering Research Council of Canada (NSERC); Innovation, Science and Economic Development Canada; Ministry of Economic Development, Job Creation and Trade of Ontario (Canada)
OSTI Identifier:
1479745
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Physics. Condensed Matter
Additional Journal Information:
Journal Volume: 30; Journal Issue: 45; Journal ID: ISSN 0953-8984
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; pyrochlore; inelastic neutron scattering; breathing pyrochlore; anisotropic exchange

Citation Formats

Rau, J. G., Wu, L. S., May, A. F., Taylor, A. E., Liu, I-Lin, Higgins, J., Butch, N. P., Ross, K. A., Nair, H. S., Lumsden, M. D., Gingras, M. J. P., and Christianson, A. D. Behavior of the breathing pyrochlore lattice Ba3Yb2Zn5O11 in applied magnetic field. United States: N. p., 2018. Web. doi:10.1088/1361-648X/aae45a.
Rau, J. G., Wu, L. S., May, A. F., Taylor, A. E., Liu, I-Lin, Higgins, J., Butch, N. P., Ross, K. A., Nair, H. S., Lumsden, M. D., Gingras, M. J. P., & Christianson, A. D. Behavior of the breathing pyrochlore lattice Ba3Yb2Zn5O11 in applied magnetic field. United States. doi:https://doi.org/10.1088/1361-648X/aae45a
Rau, J. G., Wu, L. S., May, A. F., Taylor, A. E., Liu, I-Lin, Higgins, J., Butch, N. P., Ross, K. A., Nair, H. S., Lumsden, M. D., Gingras, M. J. P., and Christianson, A. D. Wed . "Behavior of the breathing pyrochlore lattice Ba3Yb2Zn5O11 in applied magnetic field". United States. doi:https://doi.org/10.1088/1361-648X/aae45a. https://www.osti.gov/servlets/purl/1479745.
@article{osti_1479745,
title = {Behavior of the breathing pyrochlore lattice Ba3Yb2Zn5O11 in applied magnetic field},
author = {Rau, J. G. and Wu, L. S. and May, A. F. and Taylor, A. E. and Liu, I-Lin and Higgins, J. and Butch, N. P. and Ross, K. A. and Nair, H. S. and Lumsden, M. D. and Gingras, M. J. P. and Christianson, A. D.},
abstractNote = {The breathing pyrochlore lattice material Ba3Yb2Zn5O11 exists in the nearly decoupled limit, in contrast to most other well-studied breathing pyrochlore compounds. As a result, it constitutes a useful platform to benchmark theoretical calculations of exchange interactions in insulating Yb3+ magnets. Here we study Ba3Yb2Zn5O11 at low temperatures in applied magnetic fields as a further probe of the physics of this model system. Experimentally, we consider the behavior of polycrystalline samples of Ba3Yb2Zn5O11 with a combination of inelastic neutron scattering and heat capacity measurements down to 75 mK and up to fields of 10 T. Consistent with previous work, inelastic neutron scattering finds a level crossing near 3 T, but no significant dispersion of the spin excitations is detected up to the highest applied fields. Refinement of the theoretical model previously determined at zero field can reproduce much of the inelastic neutron scattering spectra and specific heat data. A notable exception is a low temperature peak in the specific heat at ~0.1 K. This may indicate the scale of interactions between tetrahedra or may reflect undetected disorder in Ba3Yb2Zn5O11.},
doi = {10.1088/1361-648X/aae45a},
journal = {Journal of Physics. Condensed Matter},
number = 45,
volume = 30,
place = {United States},
year = {2018},
month = {9}
}

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Works referenced in this record:

Frustration and anisotropic exchange in ytterbium magnets with edge-shared octahedra
journal, August 2018


Breathing Pyrochlore Lattice Realized in A -Site Ordered Spinel Oxides LiGaCr 4 O 8 and LiInCr 4 O 8
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Experimental realization of a quantum breathing pyrochlore antiferromagnet
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Negative thermal expansion and magnetoelastic coupling in the breathing pyrochlore lattice material LiGaCr 4 S 8
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Magnetic Phase Diagram of the Breathing Pyrochlore Antiferromagnet LiGa 1− x In x Cr 4 O 8
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Spin–orbit coupled molecular quantum magnetism realized in inorganic solid
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Weyl magnons in pyrochlore antiferromagnets with an all-in-all-out order
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Crystal Field Excitations in the Breathing Pyrochlore Antiferromagnet Ba 3 Yb 2 Zn 5 O 11
journal, March 2016

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Low-energy excitations and ground-state selection in the quantum breathing pyrochlore antiferromagnet Ba 3 Yb 2 Zn 5 O 11
journal, June 2016


Multistage symmetry breaking in the breathing pyrochlore lattice Li ( Ga , In ) Cr 4 O 8
journal, May 2016


Anisotropic Exchange within Decoupled Tetrahedra in the Quantum Breathing Pyrochlore Ba 3 Yb 2 Zn 5 O 11
journal, June 2016


Spin-singlet order in a pyrochlore antiferromagnet
journal, December 2001


Breathing Pyrochlore Lattice Realized in A -Site Ordered Spinel Oxides LiGaCr 4 O 8 and LiInCr 4 O 8
journal, February 2013


Magnetic Phase Diagram of the Breathing Pyrochlore Antiferromagnet LiGa 1− x In x Cr 4 O 8
journal, April 2015

  • Okamoto, Yoshihiko; Nilsen, Gøran J.; Nakazono, Taishi
  • Journal of the Physical Society of Japan, Vol. 84, Issue 4
  • DOI: 10.7566/JPSJ.84.043707

Experimental realization of a quantum breathing pyrochlore antiferromagnet
journal, August 2014


Anisotropic Exchange within Decoupled Tetrahedra in the Quantum Breathing Pyrochlore Ba 3 Yb 2 Zn 5 O 11
journal, June 2016


Multistage symmetry breaking in the breathing pyrochlore lattice Li ( Ga , In ) Cr 4 O 8
journal, May 2016


Low-energy excitations and ground-state selection in the quantum breathing pyrochlore antiferromagnet Ba 3 Yb 2 Zn 5 O 11
journal, June 2016


Magnetic and Structural Properties of A-Site Ordered Chromium Spinel Sulfides: Alternating Antiferromagnetic and Ferromagnetic Interactions in the Breathing Pyrochlore Lattice
journal, March 2018

  • Okamoto, Yoshihiko; Mori, Masaki; Katayama, Naoyuki
  • Journal of the Physical Society of Japan, Vol. 87, Issue 3
  • DOI: 10.7566/JPSJ.87.034709

Quantum spin ice on the breathing pyrochlore lattice
journal, August 2016


Negative thermal expansion and magnetoelastic coupling in the breathing pyrochlore lattice material LiGaCr 4 S 8
journal, April 2018


Weyl magnons in pyrochlore antiferromagnets with an all-in-all-out order
journal, March 2018


Higher-Order Topological Insulators and Semimetals on the Breathing Kagome and Pyrochlore Lattices
journal, January 2018


Frustration and anisotropic exchange in ytterbium magnets with edge-shared octahedra
journal, August 2018


The Disk Chopper Spectrometer at NIST: a new instrument for quasielastic neutron scattering studies
journal, August 2003


Crystal Field Excitations in the Breathing Pyrochlore Antiferromagnet Ba 3 Yb 2 Zn 5 O 11
journal, March 2016

  • Haku, Tendai; Soda, Minoru; Sera, Masakazu
  • Journal of the Physical Society of Japan, Vol. 85, Issue 3
  • DOI: 10.7566/JPSJ.85.034721

Ising-like order by disorder in the pyrochlore antiferromagnet with Dzyaloshinskii-Moriya interactions
journal, December 2008


Spin-singlet order in a pyrochlore antiferromagnet
journal, December 2001


    Works referencing / citing this record:

    Crystal field splitting, local anisotropy, and low-energy excitations in the quantum magnet YbCl 3
    journal, November 2019