295 citations · 943 across the 40 of their papers we have counts for
43 papers
From Chemical Complexity to Tunable Magnetic Ordering in Highly Disordered High-Entropy Spinel Oxides
Neha Sharma, Sushanta Mandal, Nikita Sharma +10
High-entropy stabilization chemistry is redefining materials design by transforming configurational disorder, arising from the deliberate incorporation of multiple principal cation…
Magnetically coupled charge-transport crossover and giant negative magnetoresistance in iodine-incorporated CrSe
Bikash Das, Shibnath Mandal, Kapildeb Dolui +12
We report the synthesis and comprehensive investigation of iodine-incorporated , a non-van der Waals quasi-two-dimensional magnetic material, using structural, magnetic,…
Tunable Magnetic Frustration in the Cu-Ru-based Double Perovskite LaSmCuRuO (x = 0, 1, 2) Oxides
Soumya Ghorai, Samir Rom, Irina Shamova +7
In this study, we investigate structural, magnetic, and electronic properties of the copper-ruthenate based oxide double perovskite LaSmCuRuO (x = 0, 1, 2), synthes…
Ultra-Soft Ferrimagnetism in a High-Entropy Spinel Oxide Driven by Site-Selective Cation Disorder
Neha Sharma, AmritPal, Nikita Sharma +6
High-entropy materials are complex, multifunctional materials that have reshaped the design of advanced functional materials. Their chemically diverse compositions enable access to…
Percolative Instabilities and Sparse-Limit Fractality in 1T-TaS
Poulomi Maji, Md Aquib Molla, Koushik Dey +13
The low-temperature metallic phase of 1T-TaS2 may originate from current- and voltage-driven destabilization of the commensurate charge density wave (CDW) in a strongly correlated…
Electronic structure of Graphene/Co interfaces
Daniela Pacilé, Simone Lisi, Iolanda Di Bernardo +12
Photoemission, from core levels and valence band, and low-energy electron diffraction (LEED) have been employed to investigate the electronic and structural properties of novel gra…
Probing the magnetic ground state and magnetoelastic coupling in double perovskite ruthenate: Ca2ScRuO6
Asha Ann Abraham, Anjali Kumari, Md Aktar Hossain +4
Ruthenates, materials with a single magnetic Ruthenium (Ru) atom, often display an exotic array of ground states ranging from superconductivity to altermagnetism. In this work, we…
First-order phase transition driven by competing charge-order fluctuations in 1T'-TaTe
S. K. Mahatha, A. Kar, J. Corral-Sertal +20
First-order phase transitions, characterized by a discontinuous change in the order parameter, are intriguing phenomena in condensed matter physics. However, the underlying, materi…
Dimensional crossover and emergence of novel phases in puckered PdSe under pressure
Tanima Kundu, Soumik Das, Koushik Dey +6
We investigate the pressure-driven structural and electronic evolution of PdSe\(_2\) using powder X-ray diffraction, Raman spectroscopy, and first-principles calculations. Beyond 2…
Validating Mean Field Theory in a New Complex, Disordered High-Entropy Spinel Oxide
Neha Sharma, Nikita Sharma, Jyoti Sharma +4
The advent of novel high-entropy oxides has sparked substantial research interest due to their exceptional functional properties, which often surpass the mere sum of their constitu…
Structural, magnetic and x-ray absorption spectroscopy studies of new Cr-based low, medium and high-entropy spinel oxides
Sushanta Mandal, Jyoti Sharma, Tirthankar Chakraborty +2
The emergence of high-entropy oxides has spurred significant research interest in recent times. These compounds exhibit exotic functional properties that often transcend simple lin…
In-Plane Anisotropy-Driven Directional Charge Transport in van der Waals p-n Heterojunction
Rahul Paramanik, Tanima Kundu, Soumik Das +8
Low-symmetry two-dimensional (2D) van der Waals (vdW) materials enable anisotropic charge transport, crucial for polarization-sensitive optoelectronics. In this study, a -GeS/$n…
A compact approach to higher-resolution resonant inelastic X-ray scattering detection using photoelectrons
Jan O. Schunck, Jens Buck, Robin Y. Engel +11
The detection of inelastically scattered soft X-rays with high energy resolution usually requires large grating spectrometers. Recently, photoelectron spectrometry for analysis of…
Self-stacked 1-1 layers in 6-NbSeTe and the emergence of charge and magnetic correlations due to ligand disorder
S. K. Mahatha, J. Phillips, J. Corral-Sertal +14
The emergence of correlated phenomena arising from the combination of 1 and 1 van der Waals layers is the focus of intense research. Here, we synthesize a n…
Isostructural phase transition in Tb2Ti2O7 under pressure and temperature: Insights from synchrotron X-ray diffraction
Subrata Das, Sanjoy Kr Mahatha, Konstantin Glazyrin +3
Tb2Ti2O7, a pyrochlore system, has garnered significant interest due to its intriguing structural and physical properties and their dependence on external physical parameters. In t…
Plasmonic polarons induced by alkali-atom deposition in hafnium disulfide (1-HfS)
Christoph Emeis, Sanjoy Kr Mahatha, Sebastian Rohlf +2
We combine ab-initio calculations based on many-body perturbation theory and the cumulant expansion with angle-resolved photoemission spectroscopy (ARPES) to quantify the electron-…
Silicene on Ag(111): an honeycomb lattice without Dirac bands
Sanjoy Kr. Mahatha, Paolo Moras, Valerio Bellini +4
The discovery of (4x4) silicene formation on Ag(111) raised the question on whether silicene maintains its Dirac fermion character, similar to graphene, on a supporting substrate.…
Femtosecond concerted rotation of molecules on a 2D material interface
Kiana Baumgärtner, Misa Nozaki, Marvin Reuner +20
Interfaces between molecules and 2D materials exhibit energy-driven functionalities, wherein charge transfer directs molecular motion. Unlike equilibrium systems, where molecular a…
Tunable Electron Transport in Defect-Engineered PdSe
Tanima Kundu, Barnik Pal, Bikash Das +8
Tuning the ambipolar behavior in charge carrier transport via defect-engineering is crucial for achieving high mobility transistors for nonlinear logic circuits. Here, we present t…
Unconventional topological phase transition from semimetal to insulator in SnBi2Te4: Role of anomalous thermal expansion
T. K. Dalui, B. Das, C. K. Barman +8
We propose SnBi2Te4 to be a novel candidate material exhibiting temperature (T) mediated transitions between rich topological phases. From a combined theoretical and experimental s…
Fourier-based methods for removing mesh anomalies from angle resolved photoemission spectra
Shouzheng Liu, Erica Kotta, Yishuai Xu +6
Recent improvements to spatial resolution in angle-resolved photo-emission spectroscopy (ARPES) have made it common to perform measurements with a very brief dwell time, for the pu…
Spectroscopic view of ultrafast charge carrier dynamics in single- and bilayer transition metal dichalcogenide semiconductors
P. Majchrzak, K. Volckaert, A. G. Cabo +24
The quasiparticle spectra of atomically thin semiconducting transition metal dichalcogenides (TMDCs) and their response to an ultrafast optical excitation critically depend on inte…
Phonon collapse and van der Waals melting of the 3D charge density wave of VSe
Josu Diego, A. H. Said, S. K. Mahatha +7
Among transition metal dichalcogenides (TMDs), VSe is considered to develop a purely 3-dimensional (3D) charge-density wave (CDW) at T=110 K. Here, by means of high res…
Oxide Fermi liquid universality revealed by electron spectroscopy
M. Horio, K. P. Kramer, Q. Wang +27
We present a combined soft x-ray and high-resolution vacuum-ultraviolet angle-resolved photoemission spectroscopy study of the electron-overdoped cuprate PrLaCe$_…