98 citations · 131 across the 20 of their papers we have counts for
21 papers
Phase Stability and Anisotropic Superconductivity in Ternary M2B4C2 (M=Ca, Mg) Monolayer
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J Ackland
In this work, we investigate the phase stability, electronic structure, and superconducting properties of the two-dimensional ternary borocarbides MBC (M = Ca, Mg) using fi…
Stacking-Dependent Magnetism and Tunable Half-Metallicity in Bilayer Janus 1T-MnSSe
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J. Ackland
We investigate the structural, electronic, and magnetic properties of bilayer Janus 1T-MnSSe using first-principles calculations. Various AA- and AB-type stacking configurations ar…
Triangular Charge-Density Waves (T-CDW) Stabilize Janus Group-VI Chalcogenide Hydrides
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J. Ackland
Hydrogenation is an effective strategy for enhancing electron--phonon coupling (EPC) and superconductivity in two-dimensional materials. However, excessively strong EPC can also in…
Noble-Gas Solubility in Solid and Fluid Metallic Hydrogen
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J Ackland
Metallic hydrogen dominates the deep interiors of giant planets, where trace elements interact with dense quantum matter under extreme pressure. We investigate the thermodynamic st…
Frustrated supermolecules: the high-pressure phases of crystalline methane
Marcin Kirsz, Miguel Martinez-Canales, Ayobami D. Daramola +3
Methane is the simplest hydrocarbon, yet it exhibits an extraordinarily complicated series of crystal phases. Notably, the non-plastic phases have large unit cells with nearly, but…
Competition between Charge Density Wave and Superconductivity in a Janus MXene Mo2NF2
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J Ackland
Charge-density-wave (CDW) order and superconductivity often compete in low-dimensional materials, yet their interplay in Janus MXenes remains largely unexplored. Here, we present a…
Enhanced Electron-Phonon Coupling and Superconductivity in Ba-Alloyed A15 LaH5.75
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J Ackland
Recent experiments have established rare earth A15 type hydrides as a distinct family of high temperature superconductors that can be stabilized at significantly lower pressures co…
Charge Density Wave Order and Superconductivity in Janus MoXH Monolayers
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J Ackland
Two-dimensional Janus hydrogenated transition metal chalcogenides provide an unusual platform where lattice instabilities, electron-phonon coupling, and superconductivity are stron…
Stability, electronic disruption, and anisotropic superconductivity of hydrogenated trilayer metal tetraborides (MBH; M=Be, Mg, Ca, Al)
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J. Ackland
The discovery of superconductivity in MgB (\(T_c = 39\) K) \cite{nagamatsu2001superconductivity} established metal diborides (MB) as a promising class of conventional super…
Superconductivity of two-dimensional hydrogenated transition-metal diborides
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme John Ackland
Since the discovery of MgB2 with Tc=39K, various metal diborides of MB2 have been intensively studied to find possible conventional high-temperature superconductors. A possible 2D…
Two-gap superconductivity in a Janus MoSeLi monolayer
J. Seeyangnok, U. Pinsook, G. J. Ackland
Two-dimensional (2D) lithium-decorated materials have emerged as a significant area of study since the prediction of superconductivity in lithium-decorated graphene at temperatures…
Organic compounds in metallic hydrogen
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme John Ackland
Metallic hydrogen is the most common condensed material in the universe, comprising the centre of gas giant planets. However, experimental studies are extremely challenging, and mo…
Superconductivity in Janus IV-B transition metal chalcogenide hydrides
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme John Ackland
Two-dimensional Janus transition-metal chalcogenide -hydrides (2D-JTMCs) feature a three layered structure, with a central layer of transition metal atoms, with chalcogenides below…
Solid Solubility in Metallic Hydrogen
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J Ackland
Hydrogen in its metallic form is the most common material in our solar system, found under the extreme pressure and temperature conditions found in giant planets. Such conditions a…
Superconductivity and strain-enhanced phase stability of Janus tungsten chalcogenide hydride monolayers
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J Ackland
Janus transition metal-dichalcogenide (JTMD) materials have attracted a great deal of attention due to their remarkable physical properties arising from the two-dimensional geometr…
The Icosahedral (H Supermolecule
Graeme J. Ackland, Jack Binns, Ross Howie +1
We investigate a range of possible materials containing the supermolecular form of hydrogen comprising 13 hydrogen molecules arranged in an icosahedral arrangement. This supermolec…
Transition metal solute interactions with point defects in austenitic iron from first principles
D. J. Hepburn, E. MacLeod, G. J. Ackland
We present a comprehensive set of first principles electronic structure calculations to study transition metal solutes and their interactions with point defects in austenite. Clear…
Defect and solute properties in dilute Fe-Cr-Ni austenitic alloys from first principles
T. P. C. Klaver, D. J. Hepburn, G. J. Ackland
We present results of an extensive set of first-principles density functional theory calculations of point defect formation, binding and clustering energies in austenitic Fe with d…
First Principles Calculations of Defects in Unstable Crystals: Austenitic Iron
G. J. Ackland, T. P. C. Klaver, D. J. Hepburn
First principles calculations have given a new insight into the energies of point defects in many different materials, information which cannot be readily obtained from experiment.…
Rescaled potential for transition metal solutes in a-iron
D. J. Hepburn, G. J. Ackland, P. Olsson
We present empirical potentials for dilute transition metal solutes in a-iron. It is in the Finnis-Sinclair form and is therefore suitable for billion atom molecular dynamics simul…
Interatomic forces for transition metals including magnetism
G. J. Ackland, D. J. Hepburn, J. Wallenius
}We present a formalism for extending the second moment tight-binding model, incorporating ferro- and anti-ferromagn etic interaction terms which are needed for the FeCr system. Fo…