Metal Thio- and Selenophosphates as Multifunctional van der Waals Layered Materials.
Michael A. Susner,Michael A. Susner,Marius Chyasnavichyus,Michael A. McGuire,Panchapakesan Ganesh,Petro Maksymovych +5 more
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TLDR
A broad family of layered metal thio(seleno)phosphate materials that are moderate- to wide-bandgap semiconductors with incipient ionic conductivity and a host of ferroic properties are reviewed, arguing that this material class has the potential to merge the sought-after properties of complex oxides with electronic functions of 2D and quasi-2D electronic materials.Abstract:
Since the discovery of Dirac physics in graphene, research in 2D materials has exploded with the aim of finding new materials and harnessing their unique and tunable electronic and optical properties. The follow-on work on 2D dielectrics and semiconductors has led to the emergence and development of hexagonal boron nitride, black phosphorus, and transition metal disulfides. However, the spectrum of good insulating materials is still very narrow. Likewise, 2D materials exhibiting correlated phenomena such as superconductivity, magnetism, and ferroelectricity have yet to be developed or discovered. These properties will significantly enrich the spectrum of functional 2D materials, particularly in the case of high phase-transition temperatures. They will also advance a fascinating fundamental frontier of size and proximity effects on correlated ground states. Here, a broad family of layered metal thio(seleno)phosphate materials that are moderate- to wide-bandgap semiconductors with incipient ionic conductivity and a host of ferroic properties are reviewed. It is argued that this material class has the potential to merge the sought-after properties of complex oxides with electronic functions of 2D and quasi-2D electronic materials, as well as to create new avenues for both applied and fundamental materials research in structural and magnetic correlations.read more
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Pressure-induced insulator-to-metal transition in the van der Waals compound CoPS3
TL;DR: In this paper , the van der Waals compound CoPS$_3$ exhibits a structural transformation at 7 GPa accompanied by a 2.9$\% reduction in the volume per formula unit.
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Switchable Giant Bulk Photocurrents and Photo-spin-currents in Monolayer PT-Symmetric Antiferromagnet MnPSe3.
TL;DR: In this article , the authors show that the photovoltaic effects can be achieved in air-stable 2D antiferromagnet (AFM) monolayer MnPSe3, with nonlinear photoconductance >4000 nm·μA/V2 and photo-spin-conductance >2000 (nm·μa/V 2ℏ/2e) in the visible spectrum.
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Layered selenophosphate HgPSe3 single crystal: a new candidate for X-ray to visible light photodetectors
Li Ping Liao,Evgeniya Kovalska,Vlastimil Mazánek,Lukas Valdman,Lukáš Děkanovský,Wu Bing,David Sedmidubský,Jan Luxa,Štěpán Huber,Artur P. Herman,Robert Kudrawiec,Zdeněk Sofer +11 more
TL;DR: In this paper , light detection over a broad spectral range is essential for optoelectronic applications, including spectroscopy, communication sensing and industrial inspection, and even though a few materials can successfully achieve broadband photodetectors, wavelength...
Spin wave spectra of single crystal CoPS$_3$
Andrew Wildes,B. Faak,U. B. Hansen,Melanie Enderle,J. R. Stewart,Luc Testa,Henrik M. Rønnow,C Kim,Je-Geun Park +8 more
TL;DR: In this paper , the authors measured the spin wave in single crystals of the layered van der Waals antiferromagnet CoPS$_3$ using inelastic neutron scattering and showed that four distinct spin wave branches with large energy gaps at the Brillouin zone center indicate significant anisotropy.
Posted Content
Electron-beam induced emergence of mesoscopic ordering in layered MnPS$_{3}$
Kevin M. Roccapriore,Masoud Haghani,Nan Huang,Mark P. Oxley,Vinit Sharma,Timothy Taylor,Swagata Acharya,Dimitar Pashov,Mikhail I. Katsnelson,David Mandrus,Janice L. Musfeldt,Sergei V. Kalinin +11 more
TL;DR: In this article, the formation under the beam of periodic hexagonal patterns with several characteristic length scales, nucleation and transitions between the phases, and local dynamics are demonstrated, attributed to the relative contraction of the layers caused by beam-induced sulphur vacancy formation with subsequent ordering and lattice parameter change.
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