8 papers
Coupled phase transitions in crystalline solids with extreme chemical disorder
Subha Dey, Rukma Nevgi, Suresh Chandra Joshi +13
Structural phase transitions often couple to magnetic and electronic degrees of freedom, enabling emergent phenomena in solids. In high-entropy oxides (HEOs), which typically stabi…
Extreme disorder in crystalline perovskite oxide: a new paradigm in quantum materials research
Srimanta Middey, Nandana Bhattacharya, Rukma Nevgi +2
Perovskite oxides (O) have long been central to the advancement of modern condensed matter physics, owing to their rich and tunable electronic and magnetic properties. The…
Mean field magnetism and spin frustration in a double perovskite oxide with compositional complexity
Nandana Bhattacharya, Ravi Kiran Dokala, Sourav Chowdhury +9
The rise of high-entropy oxides as a major functional materials design principle in recent years has prompted us to investigate how compositional disorder affects long-range magnet…
Janus-faced influence of oxygen vacancy in high entropy oxide films with Mott electrons
Suresh Chandra Joshi, Nandana Bhattacharya, Manav Beniwal +5
Contrary to traditional approaches, high entropy oxides (HEOs) strategically employ cationic disorder to engineer tunable functionalities. This disorder, stemming from multiple ele…
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…
Local structural distortions drive magnetic molecular field in compositionally complex spinel oxide
Rukma Nevgi, Subha Dey, Nandana Bhattacharya +8
Understanding how local distortions determine the functional properties of high entropy materials, containing five or more elements at a crystallographic site, is an open challenge…