collaborators

5 papers

cond-mat.str-el2026

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…

cond-mat.str-el2026

Spin-orbit-entangled frustrated magnetism in fcc Ba(Yb,Nd)NbO double perovskites

S. M. Hossain, Sk. Soyeb Ali, S. Mohanty +7

The search for candidate Kitaev materials has largely focused on 4 and 5 transition-metal compounds with various lattice geometries. In contrast, investigations of rare-earth…

cond-mat.mtrl-sci2026

Crystal electric field excitations and spin dynamics in a spin-orbit coupled distorted honeycomb magnet BiErGeO

S. Mohanty, S. Guchhait, S. S. Islam +9

The magnetic properties and crystal electric field (CEF) scheme of BiErGeO are investigated via magnetization, heat capacity, muon spin relaxation (muSR), and inelastic neutron…

cond-mat.str-el2026

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…

cond-mat.str-el2024

Atypical antiferromagnetic ordering in single crystalline quasi-2D honeycomb magnet YbI

Nashra Pistawala, Luminita Harnagea, Sitaram Ramakrishnan +4

Here, we study YbI, a quasi-2D layered material with Yb atoms arranged on an ideal honeycomb network of edge-sharing YbI octahedra, analogous to the low-temperature phase o…