activity
20202026
most citedOxygen Vacancy-Induced Topological Hall effect in a Nonmagnetic Band Insulator

16 citations · 39 across the 10 of their papers we have counts for

collaborators

10 papers

cond-mat.mtrl-sci2026

Charge transfer and competing symmetry breaking drive orbital reconstruction and emergent ferromagnetism in insulating oxide superlattices

Nandana Bhattacharya, Ranjan Kumar Patel, Siddharth Kumar +13

Electron correlation, hopping, and ligand-to-metal charge transfer collectively lead to diverse electronic and magnetic phenomena in 3 transition-metal oxides, where directional…

cond-mat.mtrl-sci2025★ 2 cited

Interfacial reconstruction effects in insulating double perovskite NdNiMnO/SrTiO and NdNiMnO/NdGaO thin films

Nandana Bhattacharya, Ranjan Kumar Patel, Siddharth Kumar +6

Ferromagnetic insulating (FMI) double perovskite oxides (DPOs) O with near-room-temperature Curie temperatures are promising candidates for ambient-temperature spintron…

cond-mat.supr-con2024

Hydrogen is not necessary for superconductivity in topotactically reduced nickelates

Purnima P. Balakrishnan, Dan Ferenc Segedin, Lin Er Chow +19

A key open question in the study of layered superconducting nickelate films is the role that hydrogen incorporation into the lattice plays in the appearance of the superconducting…

cond-mat.mtrl-sci2023★ 2 cited

Site-selective polar compensation of Mott electrons in a double perovskite heterointerface

Nandana Bhattacharya, Arpita Sen, Ke Qu +17

Double perovskite oxides (DPOs) with two transition metal ions (O) offer a fascinating platform for exploring exotic physics and practical applications. Studyin…

cond-mat.stat-mech2023★ 12 cited

Dynamic hysteresis at a noisy saddle-node shows power-law scaling but nonuniversal exponent

Satyaki Kundu, Ranjan Kumar Patel, Srimanta Middey +1

Dynamic hysteresis, viz., delay in switching of a bistable system on account of the finite sweep rate of the drive has been extensively studied in dynamical and thermodynamic syste…

cond-mat.str-el2023★ 2 cited

Orthorhombic distortion drives orbital ordering in an antiferromagnetic 3 Mott insulator

Prithwijit Mandal, Shashank Kumar Ojha, Duo Wang +9

The orbital, which represents the shape of the electron cloud, very often strongly influences the manifestation of various exotic phenomena, e.g., magnetism, metal-insulator transi…

cond-mat.str-el2022

Hole doping in a negative charge transfer insulator

Ranjan Kumar Patel, Krishnendu Patra, Shashank Kumar Ojha +7

NiO is a negative charge transfer energy system and exhibits a temperature-driven metal-insulator transition (MIT), which is also accompanied by a bond disproportionation (…

cond-mat.mtrl-sci2022★ 5 cited

Electronic and magnetic properties of epitaxial thin film of Nd\tsubscript{0.5}Ba\tsuscriptb{0.5}MnO\tsubscript{3}

Siddharth Kumar, Shashank Kumar Ojha, Ranjan Kumar Patel +3

Contradictory reports about the electronic and magnetic behavior of bulk Nd0:5Ba0:5MnO3 with uniform disorder exist in the literature. In this work, we investigate the thin films o…

cond-mat.mtrl-sci2020★ 16 cited

Oxygen Vacancy-Induced Topological Hall effect in a Nonmagnetic Band Insulator

Shashank Kumar Ojha, Sanat Kumar Gogoi, Manju Mishra Patidar +7

The discovery of skyrmions has sparked tremendous interests about topologically nontrivial spin textures in recent times. The signature of noncoplanar nature of magnetic moments ca…

cond-mat.str-el2020

Probing electronic and magnetic transitions of short periodic nickelate superlattices using synchrotron x-ray

S. Middey, Ranjan Kumar Patel, D. Meyers +6

Transition metal based oxide heterostructures exhibit diverse emergent phenomena e.g. two dimensional electron gas, superconductivity, non-collinear magnetic phase, ferroelectricit…