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24. Anisotropic magnon transport in an antiferromagnetic superlattice: is BiFeO3 an altermagnet?
S Husain, M Ramesh, S Prokhorenko, SK Ojha, X Li, Y Nahas, Y Kumar, P Gupta, T Chang, AJ Jung, R Sousa, JG Analytis, L W Martin, Y Han, Z Yao, SW Cheong, L Bellaiche, M Bibes, D G Schlom, and R Ramesh (Submitted)
23. Low energy domain wall racetracks with multiferroic topologies.
A Ghosal, A Qualls, Y Nahas, SK Ojha, P Meisenheimer, S Zhou, M Ramesh, J Mundy, D Schlom, Z Yao, S Prokhorenko, L Bellaiche, R Ramesh, P Stevenson, and L Caretta (Under Review)
22. Does strain destroy the spin cycloid in BiFeO3?
M Ramesh†∗, X Li†∗, SK Ojha†∗, S Husain†∗, X Guo, B Gregory, P Meisenheimer, X Lin, M Congdon, A Singer, Z Hong, L Caretta, S Kim, LW Martin, P. Stevenson, Y Han, Z Yao, R Ramesh, and DG Schlom (Under preparation)
21. Colossal enhancement in spin transmission through magnon confinement.
S Husain, M Ramesh, X Li, S Prokhorenko, SK Ojha, A Ross, K Das, B Han, HW Park, P Meisenheimer, Y Nahas, M Xia, LCaretta, LW Martin, SK Kim, B Xu, Z Yao, S Salahuddin, H Wen, LQ Chen, Y Han, Rde Sousa, L Bellaiche, M Bibes, DG Schlom, and R Ramesh arXiv:2503.23724 (Under Review)
20. Deterministic Switching of Single Spin Cycloid in Multiferroic BiFeO3 Thin Films.
P Pal, JL Schad, AM Vibhakar, SK Ojha, GY Kim, SS Payyanur, F Xue, MS Rzchowski, RD Johnson, SY Choi, LQ Chen, R Ramesh, PG Radaelli, and CB Eom arXiv:2410.22447 (Under review)
2025
19. Morphogenesis of Spin Cycloids in a Non-collinear Antiferromagnet.
SK Ojha†, P Pal , S Prokhorenko, S Husain†, M Ramesh, Xinyan Li, Deokyoung Kang, P Meisenheimer, DG Schlom, P Stevenson†, L Caretta, Y Nahas, Yimo Han, LW Martin, L Bellaiche, CB Eom, R Ramesh† PNAS 122 (17), e2423298122 (2025)
18. Site-Selective Polar Compensation of Mott Electrons in a Double-Perovskite Heterointerface
N Bhattacharya, A Sen, K Qu, A Sinha, RK Patel, S Kumar, J Zhang, P Mandal, SC Joshi, SK Ojha, J Maity, Z Zhang,
H Zhou, F Rodolakis, P Shafer, C Klewe, JW Freeland, Z Yang, U Waghmare, and S Middey Physical Review Letters 134, 176201 (2025).
17. Direct control of metallicity in high entropy oxides via nanoscale chemistry and epitaxial strain.
N Bhattacharya∗, SC Joshi∗, RK Patel∗, J Zhang∗, A Saha, P Mandal, SK Ojha, A Gloskovskii, C Schlueter, JW Freeland, Z Zhang, H Zhou, Z Yang, and S Middey† Advanced Materials 2418490 (2025)
16. Glassy dynamics of SrTiO3-based two-dimensional electron gas.
J Maity∗, SK Ojha†∗, P Mandal, M Beniwal, N Bhattacharya, A Gloskovskii, C Schlueter, S Middey†. Communications Materials 6, 84 (2025)
2024
15. Anisotropic Ferroelectricity in Polar Vortices.
P Behera , AM Ross, N Shanker, P Meisenheimer, M Manna, CC Lin, SL Hsu, I Harris, P Kavle, S Husain, SK Ojha, S Das, A Raja, LW Martin, S Susarla, S Salahuddin, LQ Chen, R Ramesh Advanced Materials 2410149 (2024).
14. Quantum fluctuations lead to glassy electron dynamics in the good metal regime of electron-doped KTaO3.
SK Ojha†, S Hazra, S Bera, SK Gogoi, P Mandal, J Maity, A. Gloskovskii, C. Schlueter, S Karmakar, M Jain, S Banerjee, V Gopalan, and S Middey. Nature Communications 15, 3830 (2024) arXiv:2306.14464.
Chosen as Featured Article in the Condensed Matter section of Nature Communications
2023
13. Flux-flow instability across Berezinskii Kosterlitz Thouless phase transition in KTaO3 (111) based superconductor.
SK Ojha†∗, P Mandal∗, S Kumar, J Maity, S Middey. Communications Physics 6, 123 (2023).
Behind the paper - Nature Communities.
Appeared in Newsletter from IISc Quantum Technology Initiative.
12. Thickness dependent OER electrocatalysis of epitaxial thin film of high entropy oxide.
RK Patel, RN Jenjeti, R Kumar, N Bhattacharya, S Kumar, SK Ojha, Z Zhang, H Zhou, K Qu, Z Wang, Z Yang, C Klewe, P Shafer, S Sampath, and S Middey. Applied Physics Reviews 10, 031407 (2023).
Chosen as featured article.
11. Orthorhombic distortion drives orbital ordering in an antiferromagnetic 3d1 Mott insulator.
P Mandal, SK Ojha, D Wang, RK Patel, S Kumar, J Maity, Z Zhang, H Zhou, C Klewe, P Shafer, B Sanyal, S Middey. Physical Review B 108, 045145 (2023).
2022
10. Hole doping in a negative charge transfer insulator.
R K Patel, K Patra, SK Ojha, S Kumar, S Sarkar, A Saha, N Bhattacharya, JW Freeland, JW Kim, PJ Ryan, P Mahadevan, S Middey. Communications Physics 5, 216 (2022).
9. Electronic and magnetic properties of epitaxial thin film of Nd0.5Ba0.5MnO3.
S Kumar, SK Ojha, RK Patel, P Mandal, N Bhattacharya, S Middey. Applied Physics Letters 120, 061602 (2022).
2021
8. Observation of the Anomalous Hall Effect in NdTiO3/SrTiO3 Heterostructures.
P Mandal, SK Ojha, Ranjan Kumar Patel, S Kumar, S Middey. The Journal of Physical Chemistry C 125, 12968 (2021).
7. Electron trapping and detrapping in an oxide two-dimensional electron gas: The role of ferroelastic twin walls.
SK Ojha†, S Hazra, P Mandal, RK Patel, S Nigam, S Kumar, S Middey. Physical Review Applied 15, 054008 (2021).
6. Spin-liquid behavior of the three-dimensional magnetic system Ba3NiIr2O9 with S = 1.
S Kumar, SK Panda, MM Patidar, SK Ojha, P Mandal, G Das, JW Freeland, V Ganesan, PJ Baker, and S Middey. Physical Review B 103, 184405 (2021).
5. Oxygen vacancy induced electronic structure modification of KTaO3.
SK Ojha∗, SK Gogoi∗, P Mandal, SD Kaushik, JW Freeland, M Jain, and S Middey. Physical Review B 103, 0851205 (2021).
2020
4. Oxygen Vacancy-Induced Topological Hall Effect in a Nonmagnetic Band Insulator.
SK Ojha, SK Gogoi, MM Patidar, Ranjan Kumar Patel, P Mandal, S Kumar, R Venkatesh, V Ganesan, M Jain, S Middey. Advanced Quantum Technologies 3, 2000021 (2020).
3. Epitaxial stabilization of ultra thin films of high entropy perovskite.
RK Patel, SK Ojha, S Kumar, A Saha, P Mandal, JW Freeland, S Middey. Applied Physics Letters 116 (7), 071601 (2020).
2019
2. Anomalous electron transport in epitaxial NdNiO3 films.
SK Ojha, S Ray, T Das, S Middey, S Sarkar, P Mahadevan, Z Wang, Y Zhu, X Liu, M Kareev, and J Chakhalian. Physical Review B 99, 235153 (2019).
2018
1. Epitaxial strain modulated electronic properties of interface controlled nickelate superlattices.
S Middey, D Meyers, SK Ojha, M Kareev, X Liu, Y Cao, JW Freeland, and J Chakhalian. Physical Review B 98, 045115 (2018).
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