P. D. C. King
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View article: Identification of intrinsic and extrinsic in-plane twofold symmetry in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>CsV</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>Sb</mml:mi><mml:mn>5</mml:mn></mml:msub></mml:mrow></mml:math> via transport measurements
Identification of intrinsic and extrinsic in-plane twofold symmetry in via transport measurements Open
The identification of in-plane twofold symmetry in layered superconductors has sparked considerable interest. While transport measurements often reveal pronounced anisotropy, interpretation of their origin remains challenging due to the di…
View article: Substrate pre-sputtering for layer-by-layer van der Waals epitaxy of 2D materials
Substrate pre-sputtering for layer-by-layer van der Waals epitaxy of 2D materials Open
Two-dimensional transition metal chalcogenides, with their atomically layered structure, favorable electronic and mechanical properties, and often strong spin–orbit coupling, are ideal systems for fundamental studies and for applications r…
View article: Dichotomy of electron-phonon interactions in the delafossite <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>PdCoO</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>: From weak bulk to polaronic surface coupling
Dichotomy of electron-phonon interactions in the delafossite : From weak bulk to polaronic surface coupling Open
The metallic delafossites host ultrahigh-mobility carriers in the bulk, while at their polar surfaces, intrinsic electronic reconstructions stabilize markedly distinct electronic phases, from charge-disproportionated insulators to Rashba-s…
View article: Persistence of charge ordering instability to Coulomb engineering in the excitonic insulator candidate TiSe$_2$
Persistence of charge ordering instability to Coulomb engineering in the excitonic insulator candidate TiSe$_2$ Open
TiSe$_2$ has long been considered one of the best candidate materials to host the elusive excitonic insulator (EI) phase. However, a finite coupling to the lattice can generically be expected, while a lack of "smoking-gun" signatures for t…
View article: Resonant interlayer coupling in NbSe$_2$-graphite epitaxial moir{é} superlattices
Resonant interlayer coupling in NbSe$_2$-graphite epitaxial moir{é} superlattices Open
Moir{é} heterostructures, created by stacking two-dimensional (2D) materials together with a finite lattice mismatch or rotational twist, represent a new frontier of designer quantum materials. Typically, however, this requires the painsta…
View article: From ferromagnetic semiconductor to antiferromagnetic metal in epitaxial CrxTey monolayers
From ferromagnetic semiconductor to antiferromagnetic metal in epitaxial CrxTey monolayers Open
Chromium ditelluride, CrTe 2 , is an attractive candidate van der Waals material for hosting 2D magnetism. However, how the room-temperature ferromagnetism of the bulk evolves as the sample is thinned to the single-layer limit has proved c…
View article: Magnetic x-ray spectroscopy of Gd-doped EuO thin films
Magnetic x-ray spectroscopy of Gd-doped EuO thin films Open
We present a detailed x-ray magnetic circular dichroism (XMCD) study of the magnetic properties of Gd-doped EuO thin films, synthesized via molecular-beam epitaxy with Gd doping levels up to over 12%. The impact of Gd doping on the electro…
View article: Charge doping into spin minority states mediates doubling of TC in ferromagnetic CrGeTe3
Charge doping into spin minority states mediates doubling of TC in ferromagnetic CrGeTe3 Open
View article: Dichotomy of electron-phonon interactions in the delafossite PdCoO$_2$: From weak bulk to polaronic surface coupling
Dichotomy of electron-phonon interactions in the delafossite PdCoO$_2$: From weak bulk to polaronic surface coupling Open
The metallic delafossites host ultra-high mobility carriers in the bulk, while at their polar surfaces, intrinsic electronic reconstructions stabilise markedly distinct electronic phases, from charge-disproportionated insulators, to Rashba…
View article: On the engineering of higher-order Van Hove singularities in two dimensions
On the engineering of higher-order Van Hove singularities in two dimensions Open
View article: Avoided metallicity in a hole-doped Mott insulator on a triangular lattice
Avoided metallicity in a hole-doped Mott insulator on a triangular lattice Open
View article: From ferromagnetic semiconductor to anti-ferromagnetic metal in epitaxial Cr$_x$Te$_y$ monolayers
From ferromagnetic semiconductor to anti-ferromagnetic metal in epitaxial Cr$_x$Te$_y$ monolayers Open
Chromium ditelluride, CrTe$_2$, is an attractive candidate van der Waals material for hosting 2D magnetism. However, how the room-temperature ferromagnetism of the bulk evolves as the sample is thinned to the single-layer limit has proved …
View article: Surface reconstructions and electronic structure of metallic delafossite thin films
Surface reconstructions and electronic structure of metallic delafossite thin films Open
The growing interest in the growth and study of thin films of low-dimensional metallic delafossites, with the general formula ABO2, is driven by their potential to exhibit electronic and magnetic characteristics that are not accessible in …
View article: Chemical Trends of the Bulk and Surface Termination-Dependent Electronic Structure of Metal-Intercalated Transition Metal Dichalcogenides
Chemical Trends of the Bulk and Surface Termination-Dependent Electronic Structure of Metal-Intercalated Transition Metal Dichalcogenides Open
The addition of metal intercalants into the van der Waals gaps of transition metal dichalcogenides has shown great promise as a method for controlling their functional properties. For example, chiral helimagnetic states, current-induced ma…
View article: Epitaxial Growth of Large‐Area Monolayers and van der Waals Heterostructures of Transition‐Metal Chalcogenides via Assisted Nucleation
Epitaxial Growth of Large‐Area Monolayers and van der Waals Heterostructures of Transition‐Metal Chalcogenides via Assisted Nucleation Open
The transition‐metal chalcogenides include some of the most important and ubiquitous families of 2D materials. They host an exceptional variety of electronic and collective states, which can in principle be readily tuned by combining diffe…
View article: Spin-orbit coupling induced Van Hove singularity in proximity to a Lifshitz transition in Sr4Ru3O10
Spin-orbit coupling induced Van Hove singularity in proximity to a Lifshitz transition in Sr4Ru3O10 Open
Van Hove singularities (VHss) in the vicinity of the Fermi energy often play a dramatic role in the physics of strongly correlated electron materials. The divergence of the density of states generated by VHss can trigger the emergence of p…
View article: Epitaxial growth of AgCrSe2 thin films by molecular beam epitaxy
Epitaxial growth of AgCrSe2 thin films by molecular beam epitaxy Open
AgCrS e 2 exhibits remarkably high ionic conduction, an inversion symmetry-breaking structural transition, and is host to complex non-colinear magnetic orders. Despite its attractive physical and chemical properties and its potential for t…
View article: The role of ion dissolution in metal and metal oxide surface inactivation of SARS-CoV-2
The role of ion dissolution in metal and metal oxide surface inactivation of SARS-CoV-2 Open
Anti-viral surface coatings are under development to prevent viral fomite transmission from high-traffic touch surfaces in public spaces. Copper’s anti-viral properties have been widely documented, but the anti-viral mechanism of copper su…
View article: Electron doping as a handle to increase the Curie temperature in ferrimagnetic Mn<sub>3</sub>Si<sub>2</sub>X<sub>6</sub> (X = Se, Te)
Electron doping as a handle to increase the Curie temperature in ferrimagnetic Mn<sub>3</sub>Si<sub>2</sub>X<sub>6</sub> (X = Se, Te) Open
The strong magnetic frustration formed by neighboring Mn ions in Mn 3 Si 2 X 6 (X = Se, Te) can be reduced by electron doping, with an increased Curie temperature.
View article: Controlling the Charge Density Wave Transition in Single-Layer TiTe<sub>2<i>x</i></sub>Se<sub>2(1–<i>x</i>)</sub> Alloys by Band Gap Engineering
Controlling the Charge Density Wave Transition in Single-Layer TiTe<sub>2<i>x</i></sub>Se<sub>2(1–<i>x</i>)</sub> Alloys by Band Gap Engineering Open
Closing the band gap of a semiconductor into a semimetallic state gives a powerful potential route to tune the electronic energy gains that drive collective phases like charge density waves (CDWs) and excitonic insulator states. We explore…
View article: Dynamics and resilience of the unconventional charge density wave in ScV6Sn6 bilayer kagome metal
Dynamics and resilience of the unconventional charge density wave in ScV6Sn6 bilayer kagome metal Open
View article: Charge doping into spin minority states mediates doubling of $T_\mathrm{C}$ in ferromagnetic CrGeTe$_3$
Charge doping into spin minority states mediates doubling of $T_\mathrm{C}$ in ferromagnetic CrGeTe$_3$ Open
The recent discovery of the persistence of long-range magnetic order when van der Waals layered magnets are thinned towards the monolayer limit has provided a tunable platform for the engineering of novel magnetic structures and devices. H…
View article: Avoided metallicity in a hole-doped Mott insulator on a triangular lattice
Avoided metallicity in a hole-doped Mott insulator on a triangular lattice Open
Doping of a Mott insulator gives rise to a wide variety of exotic emergent states, from high-temperature superconductivity to charge, spin, and orbital orders. The physics underpinning their evolution is, however, poorly understood. A majo…
View article: On the engineering of higher-order Van Hove singularities in two dimensions
On the engineering of higher-order Van Hove singularities in two dimensions Open
The properties of correlated electron materials are often intricately linked to Van Hove singularities (VHS) in the vicinity of the Fermi energy. The class of these VHS is of great importance, with higher-order ones -- with power-law diver…
View article: Spin-orbit coupled spin-polarised hole gas at the CrSe2-terminated surface of AgCrSe2
Spin-orbit coupled spin-polarised hole gas at the CrSe2-terminated surface of AgCrSe2 Open
In half-metallic systems, electronic conduction is mediated by a single spin species, offering enormous potential for spintronic devices. Here, using microscopic-area angle-resolved photoemission, we show that a spin-polarised two-dimensio…
View article: The role of ion dissolution in metal and metal oxide surface inactivation of SARS-CoV-2
The role of ion dissolution in metal and metal oxide surface inactivation of SARS-CoV-2 Open
Antiviral surface coatings are under development to prevent viral fomite transmission from high-traffic touch surfaces in public spaces. Copper’s antiviral properties have been widely documented; but the antiviral mechanism of copper surfa…
View article: Observation of Termination-Dependent Topological Connectivity in a Magnetic Weyl Kagome Lattice
Observation of Termination-Dependent Topological Connectivity in a Magnetic Weyl Kagome Lattice Open
Engineering surfaces and interfaces of materials promises great potential in the field of heterostructures and quantum matter designers, with the opportunity to drive new many-body phases that are absent in the bulk compounds. Here, we foc…
View article: Electronic structure of intertwined kagome, honeycomb, and triangular sublattices of the intermetallics <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>M</mml:mi><mml:msub><mml:mi>Co</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow><mml:msub><mml:mi>Al</mml:mi><mml:mn>9</mml:mn></mml:msub></mml:math> (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>M</mml:mi></mml:math> = Sr, Ba)
Electronic structure of intertwined kagome, honeycomb, and triangular sublattices of the intermetallics ( = Sr, Ba) Open
Intermetallics are an important playground to stabilize a large variety of physical phenomena, arising from their complex crystal structure. The ease of their chemical tuneabilty makes them suitable platforms to realize targeted electronic…
View article: Observation of termination-dependent topological connectivity in a magnetic Weyl kagome-lattice
Observation of termination-dependent topological connectivity in a magnetic Weyl kagome-lattice Open
Engineering surfaces and interfaces of materials promises great potential in the field of heterostructures and quantum matter designer, with the opportunity of driving new many-body phases that are absent in the bulk compounds. Here, we fo…
View article: Covalency, correlations, and interlayer interactions governing the magnetic and electronic structure of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Mn</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>Si</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Te</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math>
Covalency, correlations, and interlayer interactions governing the magnetic and electronic structure of Open
Mn3Si2Te6 is a rare example of a layered ferrimagnet. It has recently been shown to host a colossal angular magnetoresistance as the spin orientation is rotated from the in- to out-of-plane direction, proposed to be underpinned by a topolo…