247 citations · 651 across the 12 of their papers we have counts for
12 papers
Room Temperature Ferroelectricity, Ferromagnetism, and Anomalous Hall Effect in Half-metallic Monolayer CrTe
Imran Ahamed, Atasi Chakraborty, Pushpendra Yadav +4
Two-dimensional materials hosting ferroelectricity and ferromagnetism are crucial for low-power and high-speed information processing technologies. However, intrinsic 2D multiferro…
Structural and Magnetic Properties of Molecular Beam Epitaxy Grown Chromium Selenide Thin Films
Anupam Roy, Rik Dey, Tanmoy Pramanik +5
Chromium selenide thin films were grown epitaxially on AlO(0001) and Si(111)-(77) substrates using molecular beam epitaxy (MBE). Sharp streaks in reflection h…
Angular dependence of magnetization reversal in epitaxial chromium telluride thin films with perpendicular magnetic anisotropy
Tanmoy Pramanik, Anupam Roy, Rik Dey +5
We investigate magnetic anisotropy and magnetization reversal mechanism in chromium telluride thin films grown by molecular beam epitaxy. We report existence of strong perpendicula…
Intra-Domain Periodic Defects in Monolayer MoS
Anupam Roy, Rudresh Ghosh, Amritesh Rai +8
We present an ultra-high vacuum scanning tunneling microscopy (STM) study of structural defects in molybdenum disulfide thin films grown on silicon substrates by chemical vapor dep…
Detection of current induced spin polarization in epitaxial BiTe thin film
Rik Dey, Anupam Roy, Tanmoy Pramanik +5
We electrically detect charge current induced spin polarization on the surface of molecular beam epitaxy grown BiTe thin film in a two-terminal device with a ferromagnetic…
Air Stable Doping and Intrinsic Mobility Enhancement in Monolayer by Amorphous Encapsulation
Amritesh Rai, Amithraj Valsaraj, Hema C. P. Movva +12
To reduce Schottky-barrier-induced contact and access resistance, and the impact of charged impurity and phonon scattering on mobility in devices based on 2D transition metal dicha…
Large Magnetoresistance at Room Temperature in Ferromagnet/Topological Insulator Contacts
Sarmita Majumder, Samaresh Guchhait, Rik Dey +2
We report magnetoresistance for current flow through iron/topological insulator (Fe/TI) and Fe/evaporated-oxide/TI contacts when a magnetic field is used to initially orient the ma…
Voltage-Controlled Low-Energy Switching of Nanomagnets through Ruderman-Kittel-Kasuya-Yosida Interactions for Magnetoelectric Device Applications
Bahniman Ghosh, Rik Dey, Leonard F. Register +1
In this letter, we consider through simulation Ruderman-Kittel-Kasuya-Yosida (RKKY) interactions between nanomagnets sitting on a conductive surface, and voltage-controlled gating…
Structural and Electrical Properties of MoTe and MoSe Grown by Molecular Beam Epitaxy
Anupam Roy, Hema C. P. Movva, Biswarup Satpati +7
We demonstrate the growth of thin films of molybdenum ditelluride and molybdenum diselenide on sapphire substrates by molecular beam epitaxy. In-situ structural and chemical analys…
Perpendicular magnetic anisotropy and spin glass-like behavior in molecular beam epitaxy grown chromium telluride thin films
Anupam Roy, Samaresh Guchhait, Rik Dey +4
Reflection high energy electron diffraction (RHEED), scanning tunneling microscopy (STM), vibrating sample magnetometry and other physical property measurements are used to investi…
Voltage Controlled Magnetic Anisotropy Based Low Energy Switching of a Ferromagnet on a Topological Insulator
Bahniman Ghosh, Rik Dey, Leonard F. Register +1
We present a novel memory device that consists of a thin ferromagnetic layer of Fe deposited on topological insulator thin film, Bi2Se3. The ferromagnetic layer has perpendicular a…
Voltage Induced Switching of Nanomagnets in Topological Insulator Magnetoelectric Devices through Ruderman-Kittel-Kasuya-Yosida Interactions
Bahniman Ghosh, Urmimala Roy, Rik Dey +3
In this letter, we demonstrate switching of nanomagnets through RKKY interactions in topological insulator-based magnetoelectric devices. The switching speed is dependent on the si…