Non-Kramers doublet ground state of the triangular-lattice spin-liquid candidate TbInO3

Mai Ye; Anuradha Gupta; Anuradha Gupta; Anuradha Gupta; Anuradha Gupta; Anuradha Gupta

Non-Kramers doublet ground state of the triangular-lattice spin-liquid candidate TbInO3

ORAL

Abstract

Ferroelectric insulator TbInO$_3$ has been proposed to be a 2D spin-liquid candidate. This material has a Weiss temperature of -17K, but no magnetic ordering occurs down to 0.1K [Nat. Phys. 15, 262 (2019)]. It remains unclear whether the magnetic lattice has honeycomb or triangular symmetry at low temperature. We study the ground state properties of this system by probing its crystal-field (CF) excitations using inelastic light scattering. The experimentally established CF level scheme provides a satisfactory description for the low-temperature specific heat and entropy data. In particular, we demonstrate that the Tb ions have a non-Kramers doublet ground state, and these doublets from a triangular magnetic lattice.

Dec. 5, 2020, 3:00 PM – Dec. 5, 2020, 3:12 PM

Authors

Mai Ye

Department of Physics and Astronomy, Rutgers University-New Brunswick
Anuradha Gupta

New Jersey Inst of Tech, Pennsylvania State University, Bard College, University of Mississippi, Drexel Univ, Collaborator, University of Dayton, Morgan State University, Louisiana State University, University of Geneva, Instituto Superior Tecnico - Lisboa, Department of Biochemistry and Molecular Biology, Rutgers University, Institute for Quantitative Biomedicine, Rutgers University, Pennsylvania State University, and University of Illinois at Urbana-Champaign, University of Illinois at Urbana-Champaign, Department of Chemical Engineering, New Jersey Institute of Technology, Department of Physics and Astronomy, Rutgers University-New Brunswick, Department of Physics, Rutgers University, Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, 70569 Stuttgart, Germany, Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Chemin du Musée 3, CH-1700 Fribourg, Switzerland, The MacDiarmid Institute for Advanced Materials and Nanotechnology, 1010 Auckland, New Zealand, Department of Physics, College of William & Mary, Williamsburg, VA 23187-8795, USA, New Jersey Institute of Technology, Newark, NJ, USA, University of California, Los Angeles, CA, USA, University of California, Berkeley, CA, USA, Space Research Institute of RAS, Moscow, Russia, Georgetown University, Institut Polytechnique de Paris, University of Delaware, Brookhaven National Laboratory, San Diego State University, University of Chicago, University of Illinois at Chicago, Argonne National Laboratory, Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA, University of Washington
Anuradha Gupta

New Jersey Inst of Tech, Pennsylvania State University, Bard College, University of Mississippi, Drexel Univ, Collaborator, University of Dayton, Morgan State University, Louisiana State University, University of Geneva, Instituto Superior Tecnico - Lisboa, Department of Biochemistry and Molecular Biology, Rutgers University, Institute for Quantitative Biomedicine, Rutgers University, Pennsylvania State University, and University of Illinois at Urbana-Champaign, University of Illinois at Urbana-Champaign, Department of Chemical Engineering, New Jersey Institute of Technology, Department of Physics and Astronomy, Rutgers University-New Brunswick, Department of Physics, Rutgers University, Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, 70569 Stuttgart, Germany, Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Chemin du Musée 3, CH-1700 Fribourg, Switzerland, The MacDiarmid Institute for Advanced Materials and Nanotechnology, 1010 Auckland, New Zealand, Department of Physics, College of William & Mary, Williamsburg, VA 23187-8795, USA, New Jersey Institute of Technology, Newark, NJ, USA, University of California, Los Angeles, CA, USA, University of California, Berkeley, CA, USA, Space Research Institute of RAS, Moscow, Russia, Georgetown University, Institut Polytechnique de Paris, University of Delaware, Brookhaven National Laboratory, San Diego State University, University of Chicago, University of Illinois at Chicago, Argonne National Laboratory, Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA, University of Washington
Anuradha Gupta

New Jersey Inst of Tech, Pennsylvania State University, Bard College, University of Mississippi, Drexel Univ, Collaborator, University of Dayton, Morgan State University, Louisiana State University, University of Geneva, Instituto Superior Tecnico - Lisboa, Department of Biochemistry and Molecular Biology, Rutgers University, Institute for Quantitative Biomedicine, Rutgers University, Pennsylvania State University, and University of Illinois at Urbana-Champaign, University of Illinois at Urbana-Champaign, Department of Chemical Engineering, New Jersey Institute of Technology, Department of Physics and Astronomy, Rutgers University-New Brunswick, Department of Physics, Rutgers University, Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, 70569 Stuttgart, Germany, Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Chemin du Musée 3, CH-1700 Fribourg, Switzerland, The MacDiarmid Institute for Advanced Materials and Nanotechnology, 1010 Auckland, New Zealand, Department of Physics, College of William & Mary, Williamsburg, VA 23187-8795, USA, New Jersey Institute of Technology, Newark, NJ, USA, University of California, Los Angeles, CA, USA, University of California, Berkeley, CA, USA, Space Research Institute of RAS, Moscow, Russia, Georgetown University, Institut Polytechnique de Paris, University of Delaware, Brookhaven National Laboratory, San Diego State University, University of Chicago, University of Illinois at Chicago, Argonne National Laboratory, Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA, University of Washington
Anuradha Gupta

New Jersey Inst of Tech, Pennsylvania State University, Bard College, University of Mississippi, Drexel Univ, Collaborator, University of Dayton, Morgan State University, Louisiana State University, University of Geneva, Instituto Superior Tecnico - Lisboa, Department of Biochemistry and Molecular Biology, Rutgers University, Institute for Quantitative Biomedicine, Rutgers University, Pennsylvania State University, and University of Illinois at Urbana-Champaign, University of Illinois at Urbana-Champaign, Department of Chemical Engineering, New Jersey Institute of Technology, Department of Physics and Astronomy, Rutgers University-New Brunswick, Department of Physics, Rutgers University, Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, 70569 Stuttgart, Germany, Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Chemin du Musée 3, CH-1700 Fribourg, Switzerland, The MacDiarmid Institute for Advanced Materials and Nanotechnology, 1010 Auckland, New Zealand, Department of Physics, College of William & Mary, Williamsburg, VA 23187-8795, USA, New Jersey Institute of Technology, Newark, NJ, USA, University of California, Los Angeles, CA, USA, University of California, Berkeley, CA, USA, Space Research Institute of RAS, Moscow, Russia, Georgetown University, Institut Polytechnique de Paris, University of Delaware, Brookhaven National Laboratory, San Diego State University, University of Chicago, University of Illinois at Chicago, Argonne National Laboratory, Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA, University of Washington
Anuradha Gupta

New Jersey Inst of Tech, Pennsylvania State University, Bard College, University of Mississippi, Drexel Univ, Collaborator, University of Dayton, Morgan State University, Louisiana State University, University of Geneva, Instituto Superior Tecnico - Lisboa, Department of Biochemistry and Molecular Biology, Rutgers University, Institute for Quantitative Biomedicine, Rutgers University, Pennsylvania State University, and University of Illinois at Urbana-Champaign, University of Illinois at Urbana-Champaign, Department of Chemical Engineering, New Jersey Institute of Technology, Department of Physics and Astronomy, Rutgers University-New Brunswick, Department of Physics, Rutgers University, Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, 70569 Stuttgart, Germany, Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Chemin du Musée 3, CH-1700 Fribourg, Switzerland, The MacDiarmid Institute for Advanced Materials and Nanotechnology, 1010 Auckland, New Zealand, Department of Physics, College of William & Mary, Williamsburg, VA 23187-8795, USA, New Jersey Institute of Technology, Newark, NJ, USA, University of California, Los Angeles, CA, USA, University of California, Berkeley, CA, USA, Space Research Institute of RAS, Moscow, Russia, Georgetown University, Institut Polytechnique de Paris, University of Delaware, Brookhaven National Laboratory, San Diego State University, University of Chicago, University of Illinois at Chicago, Argonne National Laboratory, Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA, University of Washington