Magnetic-field-induced electronic instability of Weyl-like fermions in compressed black phosphorus
arXiv:2310.16311 · doi:10.1007/s11433-023-2189-7
Abstract
Revealing the role of Coulomb interaction in topological semimetals with Dirac/Weyl-like band dispersion shapes a new frontier in condensed matter physics. Topological node-line semimetals (TNLSMs), anticipated as a fertile ground for exploring electronic correlation effects due to the anisotropy associated with their node-line structure, have recently attracted considerable attention. In this study, we report an experimental observation for correlation effects in TNLSMs realized by black phosphorus (BP) under hydrostatic pressure. By performing a combination of nuclear magnetic resonance measurements and band calculations on compressed BP, a magnetic-field-induced electronic instability of Weyl-like fermions is identified under an external magnetic field parallel to the so-called nodal ring in the reciprocal space. Anomalous spin fluctuations serving as the fingerprint of electronic instability are observed at low temperatures, and they are observed to maximize at approximately 1.0 GPa. This study presents compressed BP as a realistic material platform for exploring the rich physics in strongly coupled Weyl-like fermions.
arXiv comment10 pages, 4 figures
References in corpus (37)
- Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
- Advanced capabilities for materials modelling with Quantum ESPRESSO
- Phosphorene: A New 2D Material with High Carrier Mobility
- Optimized norm-conserving Vanderbilt pseudopotentials
- The PseudoDojo: Training and grading a 85 element optimized norm-conserving pseudopotential table
- Topological nodal line semimetals with and without spin-orbital coupling
- Dimensional Reduction and Dynamical Chiral Symmetry Breaking by a Magnetic Field in Dimensions
- Chiral anomaly, Charge Density Waves, and Axion Strings from Weyl Semimetals
- Pressure-induced Lifshitz transition in black phosphorus
- Unconventional mass enhancement around the Dirac nodal loop in ZrSiS
- Long-range Coulomb interaction in nodal-ring semimetals
- Topological Node-Line Semimetal in Compressed Black Phosphorus
- Observation of an anisotropic Dirac cone reshaping and ferrimagnetic spin polarization in an organic conductor
- Interacting Weyl fermions: Phases, phase transitions and global phase diagram
- Inhomogeneous Low Frequency Spin Dynamics in La_{1.65}Eu_{0.2}Sr_{0.15}CuO_4
- Excitonic Phases from Weyl Semi-Metals
- The role of electron-electron interactions in two-dimensional Dirac fermions
- Weyl semimetals with short-range interactions
- Magnetic catalysis and axionic charge-density-wave in Weyl semimetals
- Anomalous Spin Correlations and Mass-Generating Excitonic Instability of Interacting Weyl Fermions
- Solidification and loss of hydrostaticity in liquid media used for pressure measurements
- Space efficient opposed-anvil high-pressure cell and its application to optical and NMR measurements up to 9 GPa
- Coulomb interaction effect in tilted Weyl fermion in two dimensions
- Temperature-Induced Lifshitz Transition and Possible Excitonic Instability in ZrSiSe
- Excitonic Instability and Pseudogap Formation in Nodal Line Semimetal ZrSiS
- Density wave instabilities and surface state evolution in interacting Weyl semimetals
- Topological Phase Transition and Chiral-Anomaly Driven Negative Magneto-Resistance in Bulk Black Phosphorus
- Emergent Weyl fermion excitations in TaP explored by 181-Ta quadrupole resonance
- Spin Dynamics in the LTT Phase of ~1/8 Doped Single Crystal La_{1.67}Eu_{0.2}Sr_{0.13}CuO_4
- Long-range interaction induced phases in Weyl semimetals
- Anomalous hyperfine coupling and nuclear magnetic relaxation in Weyl semimetals
- Exotic Landau Diamagnetism and Weyl-Fermions Excitations in TaAs Revealed by As NMR and NQR
- Nuclear spin-lattice relaxation time in TaP and the Knight shift of Weyl semimetals
- Topological nematic phase in Dirac semi-metals
- Electronic and magnetic properties of black phosphorus
- Instability of Dirac semimetal phase under strong magnetic field
- Nuclear spin relaxation rate near the disorder-driven quantum critical point in Weyl fermion systems