5 papers
Microscopic Origin of Random Singlet Behavior in B-site Disordered Spin-1/2 Perovskite BaCu_1/3Nb_2/3O_3 Revealed by EXAFS and Thermodynamics
Sagar Mahapatra, Francesco De Angelis, Martin Etter +5
We report a combined structural and thermodynamic study of the ABO-type disordered perovskite BaCuNbO (BCNO), whose B site is jointly occupied by Cu and Nb…
Emergent Random Spin Singlets in Disordered Spin-1/2 perovskite BaCuTaO
Sagar Mahapatra, Francesco De Angelis, Dibyata Rout +8
We investigate the disordered perovskite BaCuTaO, where Cu (spin-1/2) and Ta randomly occupy a pseudo-cubic lattice. Synchrotron X-ray diffraction and X-ray abs…
Interplay of phonons, intertwined density waves, and induced spin density wave in trilayer nickelates Pr4-xLaxNi3O10
Sonia Deswal, Dibyata Rout, Nirmalya Jana +3
Lattice degrees of freedom (DoF) play a central role in correlated electron systems, strongly influencing the dynamics of the underlying charge carriers and spin excitations. In ni…
Dynamics of electron-electron correlated to electron-phonon coupled phase progression in trilayer nickelate La4Ni3O10
Sonia Deswal, Deepu Kumar, Dibyata Rout +2
Trilayer nickelates are a rich class of materials exhibiting diverse correlated phenomena, including superconductivity, density wave transitions, non-Fermi liquid behavior along wi…
Investigating the cause of crossover from charge/spin stripe insulator to correlated metallic phase in layered T' nickelates -- RNiO
Dibyata Rout, Sanchayeta Ranajit Mudi, Suman Karmakar +2
The infinite layered nickelates have recently garnered significant attention owing to the discovery of superconductivity in hole-doped RNiO (R La, Pr, or Nd),…