Enhanced dielectric and electrical performance of phosphonic acid-modified tantalum (Ta)-doped potassium sodium niobate (KNaNbO3)-P(VDF-HFP) compositesDebajani Tripathy, Subhendu Chakroborty, Ankita Subhrasmita Gadtya, Ram Naresh Mahaling, Srikanta Moharana, Arundhati Barik and Kaushik PalEur. Phys. J. E, 46 3 (2023) 21DOI: https://doi.org/10.1140/epje/s10189-023-00279-6