4 papers
Glucose Sensing Using Pristine and Co-doped Hematite Fiber-Optic sensors: Experimental and DFT Analysis
Namrata Pattanayak, Preeti Das, Mihir Ranjan Sahoo +6
Glucose monitoring plays a critical role in managing diabetes, one of the most prevalent diseases globally. The development of fast-responsive, cost-effective, and biocompatible gl…
Quasi-static remanence as a generic-feature of spin-canting in Dzyaloshinskii-Moriya Interaction driven canted-antiferromagnets
Namrata Pattanayak, Arun Kumar, A. K Nigam +3
We consistently observe a unique pattern in remanence in a number of canted-antiferromagnets (AFM) and piezomagnets. A part of the remanence is in nature an…
Dielectric and Raman Spectroscopy in Hematite crystallites across the Morin Transition
Namrata Pattanayak, Jitender Kumar, Partha Pratim Patra +2
We report complex dielectric and Raman spectroscopy measurements in four samples of - FeO, consisting of crystallites which are either hexagonal shaped plates or cuboids…
Weak Ferromagnetism and Time-Stable Remanence in Hematite: Effect of Shape, Size and Morphology
Namrata Pattanayak, Arpan Bhattacharyya, Shruti Chakravarty +1
We have recently established that a number of Dzyaloshinskii-Moriya interaction driven canted antiferromagnets or weak ferrromagnets (WFM) including hematite exhibit an ultra-slow…