High quality atomically thin PtSe2 films grown by molecular beam epitaxy

Abstract

Atomically thin PtSe2 films have attracted extensive research interests for potential applications in high-speed electronics, spintronics and photodetectors. Obtaining high quality, single crystalline thin films with large size is critical. Here we report the first successful layer-by-layer growth of high quality PtSe2 films by molecular beam epitaxy. Atomically thin films from 1 ML to 22 ML have been grown and characterized by low-energy electron diffraction, Raman spectroscopy and X-ray photoemission spectroscopy. Moreover, a systematic thickness dependent study of the electronic structure is revealed by angle-resolved photoemission spectroscopy (ARPES), and helical spin texture is revealed by spin-ARPES. Our work provides new opportunities for growing large size single crystalline films for investigating the physical properties and potential applications of PtSe2.

References in corpus (8)

• Anomalous Lattice Vibrations of Single and Few-Layer MoS2
• The Valley Hall Effect in MoS2 Transistors
• Observation of giant bandgap renormalization and excitonic effects in a monolayer transition metal dichalcogenide semiconductor
• Two dimensional semiconductors with possible high room temperature mobility
• Electronic structures and theoretical modelling of two-dimensional group-VIB transition metal dichalcogenides
• High-performance hybrid electronic devices from layered PtSe2 films grown at low temperature
• Type-II Dirac fermions in the PtSe${}_2$ class of transition metal dichalcogenides
• Experimental evidence of type-II Dirac fermions in PtSe2

Cited by in corpus (19)

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• A library of ab initio Raman spectra for automated identification of 2D materials
• Crossover from 2D metal to 3D Dirac semimetal in metallic PtTe2 films with local Rashba effect
• Band gap engineering of PtSe2
• Semiconductor materials stacks for quantum dot spin qubits
• Correlating Nanocrystalline Structure with Electronic Properties in 2D Platinum Diselenide
• High carrier mobility in single-crystal PtSe2 grown by molecular beam epitaxy on ZnO(0001)
• High carrier mobility epitaxially aligned PtSe2 films grown by one-zone selenization
• Tunable Electronic Properties and Large Rashba Splittings Found in Few-Layer Bi${}_2$Se${}_3$/PtSe${}_2$ Van der Waals Heterostructures
• Giant Rashba splitting in PtTe/PtTe${}_2$ heterostructure
• Magnetic Proximity induced efficient charge-to-spin conversion in large area PtSe${}_2$/Ni${}_{80}$Fe${}_{20}$ heterostructures
• Seeded growth of high-quality transition metal dichalcogenide single crystals via chemical vapor transport
• Raman spectroscopy of monolayer to bulk PtSe2 exfoliated crystals
• Tuning the Magnetism in Ultrathin CrxTey Films by Lattice Dimensionality
• Helicity resolved Raman spectroscopy of mono- and a few-layers thick PtSe${}_2$
• Alloying 2D VSe2 with Pt: from a charge density wave state to a disordered insulator
• Visualization of intervalley coherent phase in PtSe2/HOPG heterojunction