164 citations · 365 across the 13 of their papers we have counts for
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Phase separated behavior in Yttrium doped CaMnO3
Neetika Sharma, A. Das, C. L. Prajapat +2
The effect of electron doping on the structural, transport, and magnetic properties of Mn (IV) - rich Ca1-xYxMnO3 (x < 0.2) samples have been investigated using neutron diffraction…
Microstructural Evolution of Charged Defects in the Fatigue Process of Polycrystalline BiFeO3 Thin Films
Qingqing Ke, Amit Kumar, Xiaojie Lou +4
Fatigue failure in ferroelectrics has been intensively investigated in the past few decades. Most of the mechanisms discussed for ferroelectric fatigue have been built on the "hypo…
Electronic structure and stability of hydrogen defects in diamond and boron doped diamond: A density functional theory study
Ashutosh Upadhyay, Akhilesh Kumar Singh, Amit Kumar
Isolated hydrogen and hydrogen pairs in bulk diamond matrix have been studied using density functional theory calculations. The electronic structure and stability of isolated and p…
Crossover from antiferromagnetic to ferromagnetic ordering in semi-Heusler alloys Cu1-xNixMnSb with increasing Ni concentration
Madhumita Halder, S. M. Yusuf, Amit Kumar +2
The magnetic properties and transition from an antiferromagnetic (AFM) to a ferromagnetic (FM) state in semi Heusler alloys Cu1-xNixMnSb, with x < 0.3 have been investigated in det…
Origin of the Enhanced Polarization in La and Mg Co-substituted BiFeO3 Thin Film during the Fatigue Process
Qingqing Ke, Amit Kumar, Xiaojie Lou +2
We have studied the polarization fatigue of La and Mg co-substituted BiFeO3 thin film, where a polarization peak is observed during the fatigue process. The origin of such anomalou…
Oxygen-vacancy-mediated Negative Differential Resistance in La and Mg co-substituted BiFeO3 Thin Film
Qingqing Ke, Amit Kumar, Xiaojie Lou +2
The conductive characteristics of Bi0.9La0.1Fe0.96Mg0.04O3(BLFM) thin film are investigated at various temperatures and a negative differential resistance (NDR) is observed in the…
Ionically-mediated electromechanical hysteresis in transition metal oxides
Yunseok Kim, Anna N. Morozovska, Amit Kumar +5
Electromechanical activity, remanent polarization states, and hysteresis loops in paraelectric TiO2 and SrTiO3 are observed. The coupling between the ionic dynamics and incipient f…
Nanoscale switching characteristics of nearly tetragonal BiFeO3 thin films
Dipanjan Mazumdar, Vilas Shelke, Milko Iliev +5
We have investigated the nanoscale switching properties of strain-engineered BiFeO3 thin films deposited on LaAlO3 substrates using a combination of scanning probe techniques. Pola…