Signatures of coupling between spin waves and Dirac fermions in YbMnBi 2

Sapkota, Aashish; Classen, L.; Stone, Matthew B.; Savici, Andrei T.; Garlea, Vasile O.; Wang, Aifeng; Tranquada, J. M.; Petrovic, C.; Zaliznyak, I. A.

doi:10.1103/physrevb.101.041111

Title: Signatures of coupling between spin waves and Dirac fermions in ${YbMnBi}_{2}$

Journal Article · 24 January 2020 · Physical Review B

DOI: https://doi.org/10.1103/physrevb.101.041111 · OSTI ID:1593247

^[1]; Classen, L. ^[2];

^[3];

^[3]; Wang, Aifeng ^[1];

^[1]; Petrovic, C. ^[1];

^[1]

Brookhaven National Lab. (BNL), Upton, NY (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Minnesota, Minneapolis, MN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Here, we present inelastic neutron scattering measurements of magnetic excitations in YbMnBi₂, which reveal features consistent with a direct coupling of magnetic excitations to Dirac fermions. In contrast with the large broadening of magnetic spectra observed in antiferromagnetic metals such as the iron pnictides, here the spin waves exhibit a small but resolvable intrinsic width, consistent with our theoretical analysis. The subtle manifestation of spin-fermion coupling is a consequence of the Dirac nature of the conduction electrons, including the vanishing density of states near the Dirac points. Accounting for the Dirac fermion dispersion specific to YbMnBi₂ leads to particular signatures, such as the nearly wave-vector-independent damping observed in the experiment.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)

Sponsoring Organization:: Alexander von Humboldt Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division

Grant/Contract Number:: AC05-00OR22725; SC0012704

OSTI ID:: 1593247

Report Number(s):: BNL--213565-2020-JAAM

Journal Information:: Physical Review B, Journal Name: Physical Review B Journal Issue: 4 Vol. 101; ISSN 2469-9950

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (42)

Mantid—Data analysis and visualization package for neutron scattering and μ SR experiments Arnold, O.; Bilheux, J. C.; Borreguero, J. M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 764 https://doi.org/10.1016/j.nima.2014.07.029	journal	November 2014
Introduction to the Theory of Thermal Neutron Scattering Squires, G. L. https://doi.org/10.1017/CBO9781139107808	book	May 2012
Experimental observation of the quantum Hall effect and Berry's phase in graphene Zhang, Yuanbo; Tan, Yan-Wen; Stormer, Horst L. Nature, Vol. 438, Issue 7065, p. 201-204 https://doi.org/10.1038/nature04235	journal	November 2005
A high-temperature ferromagnetic topological insulating phase by proximity coupling Katmis, Ferhat; Lauter, Valeria; Nogueira, Flavio S. Nature, Vol. 533, Issue 7604 https://doi.org/10.1038/nature17635	journal	May 2016
Interplay of Dirac electrons and magnetism in CaMnBi2 and SrMnBi2 Zhang, Anmin; Liu, Changle; Yi, Changjiang Nature Communications, Vol. 7, Issue 1 https://doi.org/10.1038/ncomms13833	journal	December 2016
Time-reversal symmetry breaking type-II Weyl state in YbMnBi2 Borisenko, Sergey; Evtushinsky, Daniil; Gibson, Quinn Nature Communications, Vol. 10, Issue 1 https://doi.org/10.1038/s41467-019-11393-5	journal	July 2019
The new cold neutron chopper spectrometer at the Spallation Neutron Source: Design and performance Ehlers, G.; Podlesnyak, A. A.; Niedziela, J. L. Review of Scientific Instruments, Vol. 82, Issue 8 https://doi.org/10.1063/1.3626935	journal	August 2011
Design and operation of the wide angular-range chopper spectrometer ARCS at the Spallation Neutron Source Abernathy, D. L.; Stone, M. B.; Loguillo, M. J. Review of Scientific Instruments, Vol. 83, Issue 1 https://doi.org/10.1063/1.3680104	journal	January 2012
Spin-liquid polymorphism in a correlated electron system on the threshold of superconductivity Zaliznyak, Igor; Savici, Andrei T.; Lumsden, Mark Proceedings of the National Academy of Sciences, Vol. 112, Issue 33 https://doi.org/10.1073/pnas.1503559112	journal	August 2015
Dirac materials Wehling, T. O.; Black-Schaffer, A. M.; Balatsky, A. V. Advances in Physics, Vol. 63, Issue 1 https://doi.org/10.1080/00018732.2014.927109	journal	January 2014
Introduction to the Theory of Thermal Neutron Scattering Bacon, G. E. Physics Bulletin, Vol. 30, Issue 12 https://doi.org/10.1088/0031-9112/30/12/044	journal	December 1979
Polarized neutron scattering on HYSPEC: the HYbrid SPECtrometer at SNS Zaliznyak, Igor A.; Savici, Andrei T.; Ovidiu Garlea, V. Journal of Physics: Conference Series, Vol. 862 https://doi.org/10.1088/1742-6596/862/1/012030	journal	June 2017
Neutron-scattering study of the dynamic spin correlations in CsNiCl 3 above Néel ordering Zaliznyak, I. A.; Regnault, L. -P.; Petitgrand, D. Physical Review B, Vol. 50, Issue 21 https://doi.org/10.1103/PhysRevB.50.15824	journal	December 1994
Spin-polarized transport through a domain wall in magnetized graphene Khodas, M.; Zaliznyak, I. A.; Kharzeev, D. E. Physical Review B, Vol. 80, Issue 12 https://doi.org/10.1103/PhysRevB.80.125428	journal	September 2009
Paramagnetic spin correlations in CaFe 2 As 2 single crystals Diallo, S. O.; Pratt, D. K.; Fernandes, R. M. Physical Review B, Vol. 81, Issue 21 https://doi.org/10.1103/PhysRevB.81.214407	journal	June 2010
Quantum transport of two-dimensional Dirac fermions in SrMnBi 2 Wang, Kefeng; Graf, D.; Lei, Hechang Physical Review B, Vol. 84, Issue 22 https://doi.org/10.1103/PhysRevB.84.220401	journal	December 2011
Two-dimensional Dirac fermions and quantum magnetoresistance in CaMnBi 2 Wang, Kefeng; Graf, D.; Wang, Limin Physical Review B, Vol. 85, Issue 4 https://doi.org/10.1103/PhysRevB.85.041101	journal	January 2012
Anisotropic Dirac electronic structures of A MnBi 2 ( A = Sr ,Ca) Lee, Geunsik; Farhan, Muhammad A.; Kim, Jun Sung Physical Review B, Vol. 87, Issue 24 https://doi.org/10.1103/PhysRevB.87.245104	journal	June 2013
Coupling of magnetic order to planar Bi electrons in the anisotropic Dirac metals A MnBi 2 ( A = Sr , Ca ) Guo, Y. F.; Princep, A. J.; Zhang, X. Physical Review B, Vol. 90, Issue 7 https://doi.org/10.1103/PhysRevB.90.075120	journal	August 2014
CaMn 2 Sb 2 : Spin waves on a frustrated antiferromagnetic honeycomb lattice McNally, D. E.; Simonson, J. W.; Kistner-Morris, J. J. Physical Review B, Vol. 91, Issue 18 https://doi.org/10.1103/PhysRevB.91.180407	journal	May 2015
Extracting paramagnon excitations from resonant inelastic x-ray scattering experiments Lamsal, Jagat; Montfrooij, Wouter Physical Review B, Vol. 93, Issue 21 https://doi.org/10.1103/PhysRevB.93.214513	journal	June 2016
Interlayer electronic transport in CaMnBi 2 antiferromagnet Wang, Aifeng; Graf, D.; Wu, Lijun Physical Review B, Vol. 94, Issue 12 https://doi.org/10.1103/PhysRevB.94.125118	journal	September 2016
Magnetotransport study of Dirac fermions in YbMnBi 2 antiferromagnet Wang, Aifeng; Zaliznyak, I.; Ren, Weijun Physical Review B, Vol. 94, Issue 16 https://doi.org/10.1103/PhysRevB.94.165161	journal	October 2016
Electrodynamic response of the type-II Weyl semimetal YbMnBi 2 Chinotti, M.; Pal, A.; Ren, W. J. Physical Review B, Vol. 94, Issue 24 https://doi.org/10.1103/PhysRevB.94.245101	journal	December 2016
Spin dynamics in the antiferromagnetic phases of the Dirac metals A MnBi 2 ( A = Sr , Ca ) Rahn, M. C.; Princep, A. J.; Piovano, A. Physical Review B, Vol. 95, Issue 13 https://doi.org/10.1103/PhysRevB.95.134405	journal	April 2017
Optical investigation of the strong spin-orbit-coupled magnetic semimetal YbMnBi 2 Chaudhuri, Dipanjan; Cheng, Bing; Yaresko, Alexander Physical Review B, Vol. 96, Issue 7 https://doi.org/10.1103/PhysRevB.96.075151	journal	August 2017
Doping evolution of spin fluctuations and their peculiar suppression at low temperatures in Ca ( Fe 1 − x Co x ) 2 As 2 Sapkota, A.; Das, P.; Böhmer, A. E. Physical Review B, Vol. 97, Issue 17 https://doi.org/10.1103/PhysRevB.97.174519	journal	May 2018
Itinerant Magnetic Excitations in Antiferromagnetic CaFe 2 As 2 Diallo, S. O.; Antropov, V. P.; Perring, T. G. Physical Review Letters, Vol. 102, Issue 18 https://doi.org/10.1103/PhysRevLett.102.187206	journal	May 2009
Anisotropic Dirac Fermions in a Bi Square Net of SrMnBi 2 Park, Joonbum; Lee, G.; Wolff-Fabris, F. Physical Review Letters, Vol. 107, Issue 12 https://doi.org/10.1103/PhysRevLett.107.126402	journal	September 2011
Lifetimes of Antiferromagnetic Magnons in Two and Three Dimensions: Experiment, Theory, and Numerics Bayrakci, S. P.; Tennant, D. A.; Leininger, Ph. Physical Review Letters, Vol. 111, Issue 1 https://doi.org/10.1103/PhysRevLett.111.017204	journal	July 2013
Stripe Antiferromagnetic Spin Fluctuations in SrCo 2 As 2 Jayasekara, W.; Lee, Y.; Pandey, Abhishek Physical Review Letters, Vol. 111, Issue 15 https://doi.org/10.1103/PhysRevLett.111.157001	journal	October 2013
Effective One-Dimensional Coupling in the Highly Frustrated Square-Lattice Itinerant Magnet CaCo 2 − y As 2 Sapkota, A.; Ueland, B. G.; Anand, V. K. Physical Review Letters, Vol. 119, Issue 14 https://doi.org/10.1103/PhysRevLett.119.147201	journal	October 2017
Unconventional Quasiparticle Lifetime in Graphite González, J.; Guinea, F.; Vozmediano, M. A. H. Physical Review Letters, Vol. 77, Issue 17 https://doi.org/10.1103/PhysRevLett.77.3589	journal	October 1996
Colloquium: Topological insulators Hasan, M. Z.; Kane, C. L. Reviews of Modern Physics, Vol. 82, Issue 4, p. 3045-3067 https://doi.org/10.1103/RevModPhys.82.3045	journal	November 2010
Quantum Hall effect in a bulk antiferromagnet EuMnBi ₂ with magnetically confined two-dimensional Dirac fermions Masuda, Hidetoshi; Sakai, Hideaki; Tokunaga, Masashi Science Advances, Vol. 2, Issue 1 https://doi.org/10.1126/sciadv.1501117	journal	January 2016
Time-reversal symmetry breaking type-II Weyl state in $YbMnBi_{2}$ Borisenko, Sergey; Evtushinsky, Daniil; Gibson, Quinn Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2019-05603	text	January 2019
Dirac materials Wehling, T. O.; Black-Schaffer, A. M.; Balatsky, A. V. arXiv https://doi.org/10.48550/arxiv.1405.5774	text	January 2014
Spin liquid polymorphism in a correlated electron system on the threshold of superconductivity Zaliznyak, Igor A.; Savici, Andrei T.; Lumsden, Mark arXiv https://doi.org/10.48550/arxiv.1502.06051	text	January 2015
Electrodynamic response of type II Weyl semimetals Chinotti, M.; Pal, A.; Ren, W. J. arXiv https://doi.org/10.48550/arxiv.1607.08527	text	January 2016
Polarized neutron scattering on HYSPEC: the HYbrid SPECtrometer at SNS Zaliznyak, Igor A.; Savici, Andrei T.; Garlea, V. Ovidiu arXiv https://doi.org/10.48550/arxiv.1610.06018	text	January 2016
Quantum Hall effect in a bulk antiferromagnet EuMnBi$_2$ with magnetically confined two-dimensional Dirac fermions Masuda, H.; Sakai, H.; Tokunaga, M. arXiv https://doi.org/10.48550/arxiv.1703.04127	text	January 2017
Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene Zhang, Yuanbo; Tan, Yan-Wen; Stormer, Horst L. arXiv https://doi.org/10.48550/arxiv.cond-mat/0509355	text	January 2005

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