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Title: Electronic and topological properties of the van der Waals layered superconductor PtTe

Journal Article · · Physical Review. B

We report the crystal growth and structural and electronic properties of superconducting, van der Waals layered PtTe. Easily cleavable crystals with a platelike morphology consistent with the layered structure were grown from a platinum-rich flux. A consistent determination of Tc = 0.57 K is made from the onset of diamagnetism, the zero of resistivity, and the midpoint of the heat-capacity jump. The observed behavior is consistent with type-II superconductivity, with upper critical field at T = 0 estimated using the Werthamer-Helfand-Hohenberg theory to be 143 and 65 Oe for fields out of and in the plane, respectively. The heat-capacity discontinuity is close to the weak-coupling BCS value. Density-functional theory calculations and analysis of the electronic structure finds that PtTe is a topological semimetal with numerous surface states but suggests that the superconducting state itself may be topologically trivial. Additionally, angle-resolved photoemission spectroscopy reveals a normal-state Fermi surface in remarkable agreement with theory and confirms the overall topological nature of the material by experimental identification of the surface bands. Together, these findings identify PtTe as an interesting example of a cleavable, topological, and superconducting material.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1873818
Journal Information:
Physical Review. B, Journal Name: Physical Review. B Journal Issue: 18 Vol. 105; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (70)

Fe3GeTe2 and Ni3GeTe2 – Two New Layered Transition-Metal Compounds: Crystal Structures, HRTEM Investigations, and Magnetic and Electrical Properties journal April 2006
The van der Waals Ferromagnets Fe 5- δ GeTe 2 and Fe 5- δ -x Ni x GeTe 2 - Crystal Structure, Stacking Faults, and Magnetic Properties : The van der Waals Ferromagnets Fe journal November 2018
Growth of large scale PtTe, PtTe2 and PtSe2 films on a wide range of substrates journal July 2020
The occurrence of superconductivity in sulfides, selenides, tellurides of Pt-group metals journal December 1965
Konstitution einiger mischungen des platins mit b-elementen (B = Sn, Sb, Te) journal October 1969
A study of the phases in the bismuth - tellurium system journal June 1993
Recent advances in magnetic structure determination by neutron powder diffraction journal October 1993
Band structure diagram paths based on crystallography journal February 2017
WannierTools: An open-source software package for novel topological materials journal March 2018
FermiSurfer: Fermi-surface viewer providing multiple representation schemes journal June 2019
Irvsp: To obtain irreducible representations of electronic states in the VASP journal April 2021
Van der Waals electride: Toward intrinsic two-dimensional ferromagnetism of spin-polarized anionic electrons journal September 2021
Discovery of Hidden Classes of Layered Electrides by Extensive High-Throughput Material Screening journal February 2019
Enhanced Superconductivity in Monolayer T d -MoTe 2 journal March 2021
Cr x Pt 1– x Te 2 ( x ≤ 0.45): A Family of Air-Stable and Exfoliatable van der Waals Ferromagnets journal February 2022
Robust Excitons and Trions in Monolayer MoTe 2 journal May 2015
Ferromagnetism Near Room Temperature in the Cleavable van der Waals Crystal Fe 5 GeTe 2 journal March 2019
Diamagnetic Corrections and Pascal's Constants journal April 2008
Synthetic study of some rare-earth-metal monohalide hydrides MXHx and their alkali-metal intercalates journal December 1986
van der Waals Volumes and Radii journal March 1964
Consistent van der Waals Radii for the Whole Main Group journal May 2009
Discovery of intrinsic ferromagnetism in two-dimensional van der Waals crystals journal April 2017
Topological quantum chemistry journal July 2017
Superconductivity in Weyl semimetal candidate MoTe2 journal March 2016
Pressure-driven dome-shaped superconductivity and electronic structural evolution in tungsten ditelluride journal July 2015
Classical and quantum routes to linear magnetoresistance journal September 2008
Edge conduction in monolayer WTe2 journal April 2017
Lorentz-violating type-II Dirac fermions in transition metal dichalcogenide PtTe2 journal August 2017
Two-dimensional itinerant ferromagnetism in atomically thin Fe3GeTe2 journal August 2018
Emergent phenomena and proximity effects in two-dimensional magnets and heterostructures journal September 2020
Van der Waals heterostructures for spintronics and opto-spintronics journal July 2021
A complete catalogue of high-quality topological materials journal February 2019
Weak Anti-localization and Quantum Oscillations of Surface States in Topological Insulator Bi2Se2Te journal October 2012
Atomically-thin crystalline films and ribbons of bismuth telluride journal February 2010
A precise method for visualizing dispersive features in image plots journal April 2011
Micro-Raman spectroscopy of mechanically exfoliated few-quintuple layers of Bi 2 Te 3 , Bi 2 Se 3 , and Sb 2 Te 3 materials journal March 2012
Commentary: The Materials Project: A materials genome approach to accelerating materials innovation journal July 2013
Invited Article: High resolution angle resolved photoemission with tabletop 11 eV laser journal January 2016
Nonsaturating large magnetoresistance in semimetals journal October 2018
Use of frit-disc crucibles for routine and exploratory solution growth of single crystalline samples journal December 2015
PdTe: a strongly coupled superconductor journal January 2012
Crystallographic, magnetic and electronic structures of a new layered ferromagnetic compound Cr 2 Ge 2 Te 6 journal January 1995
Wannier90 as a community code: new features and applications journal January 2020
Theoretical prediction of room-temperature two-dimensional ferromagnetism in an yttrium iodide electride journal May 2021
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Quantum magnetoresistance journal August 1998
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Classical magnetotransport of inhomogeneous conductors journal September 2005
Topological insulators with inversion symmetry journal July 2007
Bulk Fermi surface coexistence with Dirac surface state in Bi 2 Se 3 : A comparison of photoemission and Shubnikov–de Haas measurements journal May 2010
Linear magnetoresistance in metals: Guiding center diffusion in a smooth random potential journal November 2015
Type-I superconductivity in the Dirac semimetal PdTe 2 journal December 2017
Coherence-Incoherence Crossover and the Mass-Renormalization Puzzles in Sr 2 RuO 4 journal March 2011
Experimental Realization of Type-II Dirac Fermions in a PdTe 2 Superconductor journal July 2017
Generalized Gradient Approximation Made Simple journal October 1996
Angle-resolved photoemission studies of the cuprate superconductors journal April 2003
The superconductivity of Sr 2 RuO 4 and the physics of spin-triplet pairing journal May 2003
Reinvestigation of the structure of tellurium journal June 1989
A short history of SHELX journal December 2007
The crystal structures of WTe 2 and high-temperature MoTe 2 journal February 1966
Intrinsic magnetic topological insulators in van der Waals layered MnBi 2 Te 4 -family materials journal June 2019
Observation of Unconventional Quantum Spin Textures in Topological Insulators journal February 2009
Experimental Realization of a Three-Dimensional Topological Insulator, Bi2Te3 journal June 2009
Massive Dirac Fermion on the Surface of a Magnetically Doped Topological Insulator journal August 2010
Quantum spin Hall effect in two-dimensional transition metal dichalcogenides journal November 2014
Observation of topological superconductivity on the surface of an iron-based superconductor journal March 2018
All topological bands of all nonmagnetic stoichiometric materials journal May 2022
Toward Single Atom Chains with Exfoliated Tellurium journal August 2017
Overlooked trigonal symmetry in structures reported with monoclinic centred Bravais lattices; trigonal description of Li 8 Pb 3 , PtTe, Pt 3 Te 4 , Pt 2 Te 3 , LiFe 6 Ge 4 , LiFe 6 Ge 5 , CaGa 6 Te 10 and La 3.266 Mn 1.1 S 6 journal December 1990
Enhancement of coercive field in atomically-thin quenched Fe 5 GeTe 2 journal March 2020