Field-induced instability of the quantum spin liquid ground state in the <math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><msub><mi>J</mi><mi>eff</mi></msub><mo>=</mo><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow></math> triangular-lattice compound <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">NaYbO</mi><mn>2</mn></msub></math>

K. M. Ranjith; D. Dmytriieva; S. Khim; J. Sichelschmidt; S. Luther; D. Ehlers; H. Yasuoka; J. Wosnitza; A. A. Tsirlin; H. Kühne; M. Baenitz

doi:10.1103/PhysRevB.99.180401

Rapid Communication

Field-induced instability of the quantum spin liquid ground state in the $J_{eff} = \frac{1}{2}$ triangular-lattice compound ${NaYbO}_{2}$

K. M. Ranjith^1,*, D. Dmytriieva^2,3, S. Khim¹, J. Sichelschmidt¹, S. Luther^2,3, D. Ehlers^4,1, H. Yasuoka¹, J. Wosnitza^2,3, A. A. Tsirlin⁵ et al.

H. Kühne² and M. Baenitz^1,†

¹Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
²Hochfeld-Magnetlabor Dresden (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
³Institut für Festkörper- und Materialphysik, TU Dresden, 01062 Dresden, Germany
⁴Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, 86135 Augsburg, Germany
⁵Experimental Physics VI, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, 86135 Augsburg, Germany

^*ranjith.kumar@cpfs.mpg.de
^†michael.baenitz@cpfs.mpg.de

PDF

Phys. Rev. B 99, 180401(R) – Published 1 May, 2019

DOI: https://doi.org/10.1103/PhysRevB.99.180401

Abstract

Polycrystalline samples of ${NaYbO}_{2}$ are investigated by bulk magnetization and specific-heat measurements, as well as by nuclear magnetic resonance (NMR) and electron spin resonance (ESR) as local probes. No signatures of long-range magnetic order are found down to 0.3 K, evidencing a highly frustrated spin-liquid-like ground state in zero field. Above 2 T, signatures of magnetic order are observed in thermodynamic measurements, suggesting the possibility of a field-induced quantum phase transition. The ${}^{23}{Na}$ NMR relaxation rates reveal the absence of magnetic order and persistent fluctuations down to 0.3 K at very low fields and confirm the bulk magnetic order above 2 T. The $H - T$ phase diagram is obtained and discussed along with the existing theoretical concepts for layered spin- $\frac{1}{2}$ triangular-lattice antiferromagnets.

Physical Review B

Field-induced instability of the quantum spin liquid ground state in the $J_{eff} = \frac{1}{2}$ triangular-lattice compound ${NaYbO}_{2}$

Abstract

Physics Subject Headings (PhySH)

Authorization Required

Other Options

Supplemental Material (Subscription Required)

References (Subscription Required)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation

Field-induced instability of the quantum spin liquid ground state in the Jeff=12 triangular-lattice compound NaYbO2

Abstract

Physics Subject Headings (PhySH)

Authorization Required

Log in via your institution

Log in via APS Member Subscription

Other Options

Supplemental Material (Subscription Required)

References (Subscription Required)

Field-induced instability of the quantum spin liquid ground state in the $J_{eff} = \frac{1}{2}$ triangular-lattice compound ${NaYbO}_{2}$