127 citations · 717 across the 18 of their papers we have counts for
18 papers
Observation of Nonlinear Spin-Charge Conversion in the Thin Film of Nominally Centrosymmetric Dirac Semimetal SrIrO3 at Room Temperature
Y. Kozuka, S. Isogami, K. Masuda +5
Spin-charge conversion via spin-orbit interaction is one of the core concepts in the current spintronics research. The efficiency of the interconversion between charge and spin cur…
Growth and atomically resolved polarization mapping of ferroelectric thin film
Jihwan Jeong, Junsik Mun, Saikat Das +5
Aurivillius ferroelectric (BWO) encompasses a broad range of functionalities, including robust fatigue-free ferroelectricity, high photocatalytic activity, and ionic con…
Deterministic influence of substrate-induced oxygen vacancy diffusion on thin film growth
Saikat Das, Tadakatsu Ohkubo, Shinya Kasai +1
In oxide epitaxy, the growth temperature and background oxygen partial pressure are considered as the most critical factors that control the phase stability of an oxide thin film.…
PeV-EeV neutrinos from gamma-ray blazars due to ultrahigh-energy cosmic-ray propagation
Saikat Das, Nayantara Gupta, Soebur Razzaque
Blazars are potential candidates of cosmic-ray acceleration up to ultrahigh energies ( eV). For an efficient cosmic-ray injection from blazars, collisions wit…
Modeling the spectrum and composition of ultrahigh-energy cosmic rays with two populations of extragalactic sources
Saikat Das, Soebur Razzaque, Nayantara Gupta
We fit the ultrahigh-energy cosmic-ray (UHECR, EeV) spectrum and composition data from the Pierre Auger Observatory at energies eV, i.e., beyo…
Milky Way globular cluster dynamics: are they preferentially co-rotating?
Saikat Das, Nirupam Roy
The motion of the baryonic components of the Milky Way is governed by both luminous and dark matter content of the Galaxy. Thus, the dynamics of the Milky Way globular clusters can…
Electronic band structure of (111) thin filman angle-resolved photoemission spectroscopy study
Hanyoung Ryu, Yukiaki Ishida, Bongju Kim +16
We studied the electronic band structure of pulsed laser deposition (PLD) grown (111)-oriented SrRuO (SRO) thin films using \textit{in situ} angle-resolved photoemission spectr…
Ultrahigh-energy cosmic ray interactions as the origin of very high energy rays from BL Lacs
Saikat Das, Nayantara Gupta, Soebur Razzaque
We explain the observed multiwavelength photon spectrum of a number of BL Lac objects detected at very high energy (VHE, GeV), using a lepto-hadronic emission model.…
Enhanced flexoelectricity at reduced dimensions revealed by mechanically tunable quantum tunnelling
Saikat Das, Bo Wang, Tula R. Paudel +5
Flexoelectricity is a universal electromechanical coupling effect whereby all dielectric materials polarize in response to strain gradients. In particular, nanoscale flexoelectrici…
Thickness of
Saikat Das
In this paper we have examined hyperbolicity and relative hyperbolicity of , where , is a finite free product and each is a fini…
Ultrahigh energy cosmic rays and neutrinos from light nuclei composition
Saikat Das, Soebur Razzaque, Nayantara Gupta
The baryonic mass composition of ultrahigh energy ( eV) cosmic rays (UHECRs) at injection accompanied by their interactions on universal photon backgrounds during…
Electronic Reconstruction Enhanced Tunneling Conductance at Terrace Edges of Ultrathin Oxide Films
Lingfei Wang, Rokyeon Kim, Yoonkoo Kim +10
Quantum mechanical tunneling of electrons across ultrathin insulating oxide barriers has been studied extensively for decades due to its great potential in electronic device applic…
Controlled manipulation of oxygen vacancies using nanoscale flexoelectricity
Saikat Das, Bo Wang, Ye Cao +8
Oxygen vacancies, especially their distribution, are directly coupled to the electromagnetic properties of oxides and related emergent functionalities that have implication in devi…
Overcoming the Fundamental Barrier Thickness Limits of Ferroelectric Tunnel Junctions through BaTiO3/SrTiO3 Composite Barriers
Lingfei Wang, Myung Rae Cho, Yeong Jae Shin +5
Ferroelectric tunnel junctions (FTJs) have attracted increasing research interest as a promising candidate for non-volatile memories. Recently, significant enhancements of tunnelin…
X-ray absorption spectroscopy study of the electronic and magnetic proximity effects in YBaCuO/LaCaMnO and LaSrCuO/LaCaMnO multilayers
M. A. Uribe-Laverde, S. Das, K. Sen +10
With x-ray absorption spectroscopy we investigated the orbital reconstruction and the induced ferromagnetic moment of the interfacial Cu atoms in YBaCuO/LaCa$…
Influence of La and Mn vacancies on the electronic and magnetic properties of LaMnO thin films grown by pulsed laser deposition
Ivan Marozau, Proloy T. Das, Max Döbeli +6
With pulsed laser deposition we have grown c-axis oriented thin films of the nominal composition LaMnO (LMO) on LSAT(001) substrates. We find that, depending on the oxygen ba…
Magnetic proximity effect in and superlattices
D. K. Satapathy, M. A. Uribe-Laverde, I. Marozau +21
Using neutron reflectometry and resonant x-ray techniques we studied the magnetic proximity effect (MPE) in superlattices composed of superconducting YBaCuO (YBCO) and…
Pulsed laser deposition growth of heteroepitaxial YBa2Cu3O7/La0.67Ca0.33MnO3 superlattices on NdGaO3 and Sr0.7La0.3Al0.65Ta0.35O3 substrates
V. K. Malik, I. Marozau, S. Das +9
Heteroepitaxial superlattices of [YBa2Cu3O7(n)/ La0.67Ca0.33MnO3(m)]x, where n and m are the number of YBCO and LCMO monolayers and x the number of bilayer repetitions, have been g…