234 citations · 877 across the 36 of their papers we have counts for
11 papers · 1 filter
A new skyrmion topological transition driven by higher-order exchange interactions in Janus MnSeTe
Megha Arya, Moritz A. Goerzen, Lionel Calmels +4
Two-dimensional (2D) van der Waals magnets offer a promising platform for pushing skyrmion technology to the single-layer limit with high tunability. While Dzyaloshinskii-Moriya in…
Lifetime of bimerons and antibimerons in two-dimensional magnets
Moritz A. Goerzen, Tim Drevelow, Soumyajyoti Haldar +3
Soliton-based computing architectures have recently emerged as a promising avenue to overcome fundamental limitations of conventional information technologies, the von Neumann bott…
Strain-driven domain wall network with chiral junctions in an antiferromagnet
Vishesh Saxena, Mara Gutzeit, Arturo Rodríguez-Sota +6
Materials with antiferromagnetic order have recently emerged as promising candidates in spintronics based on their beneficial characteristics such as vanishing stray fields and ult…
Role of higher-order exchange interactions for skyrmion stability
Souvik Paul, Soumyajyoti Haldar, Stephan von Malottki +1
Transition-metal interfaces and multilayers are a very promising class of systems to realize nanometer-sized, stable magnetic skyrmions for future spintronic devices. For room temp…
Quantifying Exchange Forces of a Non-Collinear Magnetic Structure on the Atomic Scale
Nadine Hauptmann, Soumyajyoti Haldar, Tzu-Chao Hung +5
The large interest in chiral magnetic structures for realization of nanoscale magnetic storage or logic devices has necessitated methods which can quantify magnetic interactions at…
Skyrmion lifetimes in ultrathin films
Stephan von Malottki, Pavel F. Bessarab, Soumyajyoti Haldar +2
We show that thermal stability of magnetic skyrmions can be strongly affected by entropic effects. The lifetimes of isolated skyrmions in atomic Pd/Fe bilayers on Ir(111) and on Rh…
A systematic study of structural, electronic and optical properties of atomic scale defects in 2D transition metal dichalcogenides MX (M = Mo,W; X = S, Se, Te)
Soumyajyoti Haldar, Hakkim Vovusha, Manoj Kumar Yadav +2
In this work, we have systematically studied structural, electronic and magnetic properties of atomic scale defects in 2D transition metal dichalcogenides MX, (M = Mo and W; X…
Functionalization of edge reconstructed graphene nanoribbons by H and Fe: A density functional study
Soumyajyoti Haldar, Sumanta Bhandary, Satadeep Bhattacharjee +3
In this paper, we have studied functionalization of 5-7 edge-reconstructed graphene nanoribbons by ab initio density functional calculations. Our studies show that hydrogenation at…
Magnetic impurities in graphane with dehydrogenated channels
Soumyajyoti Haldar, Dilip G. Kanhere, Biplab Sanyal
We have investigated the electronic and magnetic response of a single Fe atom and a pair of interacting Fe atoms placed in patterned dehydrogenated channels in graphane within the…
Metallic clusters on a model surface: quantum versus geometric effects
S. A. Blundell, Soumyajyoti Haldar, D. G. Kanhere
We determine the structure and melting behavior of supported metallic clusters using an ab initio density-functional-based treatment of intracluster interactions and an approximate…
A Systematic Study of Electronic Structure from Graphene to Graphane
Prachi Chandrachud, Bhalchandra S Pujari, Soumyajyoti Haldar +2
While graphene is a semi-metal, a recently synthesized hydrogenated graphene called graphane, is an insulator. We have probed the transformation of graphene upon hydrogenation to g…