2016/02/11 by K. W. Chen, K. -W. Chen, Suvadip Das +15 · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #2D Materials and Applications #Chemistry #Condensed matter physics #Dirac (video compression format) #Electron #Fermi level #Fermi surface #Graphene research and applications #Magnetic field #Magnetization #Materials science #Oscillation (cell signaling) #Physics #Quantum mechanics #Quantum oscillations #Superconductivity #Topological Materials and Phenomena #cond-mat.mes-hall #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1088/0953-8984/28/14/14lt01
published as Journal of Physics: Condensed Matter, Volume 28, Number 14(2016)
arxiv created 2016/02/11 · openalex publication_date 2016/03/08 · arxiv updated 2016/03/09 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Results are reported for single crystal specimens of Hf2Te2P and compared to its structural analogue Zr2Te2P, which was recently proposed to be a potential reservoir for Dirac physics [1]. Both materials are produced using the iodine vapor phase transport method and the resulting crystals are exfoliable. The bulk electrical transport and thermodynamic properties indicate Fermi liquid behavior at low temperature for both compounds. Quantum oscillations are observed in magnetization measurements for fields applied parallel but not perpendicular to the c-axis, suggesting that the Fermi surfaces are quasi-two dimensional. Frequencies are determined from quantum oscillations for several parts of the Fermi surfaces. Lifshitz-Kosevich fits to the temperature dependent amplitudes of the oscillations reveal small effective masses, with a particularly small value [Formula: see text] for the α branch of Zr2Te2P. Electronic structure calculations are in good agreement with quantum oscillation results and illustrate the effect of a stronger spin-orbit interaction going from Zr to Hf. These results suggest that by using appropriate tuning parameters this class of materials may deepen the pool of novel Dirac phenomena.