596 citations
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9 papers · 2 filters
Quantum phases of a frustrated spin-1 system: The 5/7 skewed ladder
Sambunath Das, Dayasindhu Dey, Manoranjan Kumar +1
The quantum phases in a spin-1 skewed ladder system formed by alternately fusing five- and seven-membered rings are studied numerically using the exact diagonalization technique up…
Ground state properties and exact thermodynamics of a 2-leg anisotropic spin ladder system
Sk Saniur Rahaman, Shaon Sahoo, Manoranjan Kumar
We study a frustrated two-leg spin ladder with alternate isotropic Heisenberg and Ising rung exchange interactions, whereas, interactions along legs and diagonals are Ising-type. A…
Bond-bond correlations, gap relations and thermodynamics of spin- chains with spin-Peierls transitions and bond-order-wave phases
Sudip Kumar Saha, Manoranjan Kumar, Zoltán G. Soos
The spin- chain with antiferromagnetic exchange and between first and second neighbors, respectively, has both gapless and gapped () quantum phase…
Continuous transition from weakly localized regime to strong localization regime in Nd_{0.7}La_{0.3}NiO_{3} films
Ravindra Singh Bisht, Gopi Nath Daptary, Aveek Bid +1
We report an investigation of Metal Insulator Transition (MIT) using conductivity and magnetoconductance (MC) measurements down to 0.3 K in Nd_{0.7}La_{0.3}NiO_{3} films grown on c…
Anomalous band renormalization due to high energy in the colossal thermoelectric material KRhO
Susmita Changdar, G. Shipunov, N. B. Joseph +6
We report on low-energy electronic structure and electronic correlations of KRhO, studied using high-resolution angle-resolved photoemission spectroscopy (ARPES) techn…
Understanding the Curious Magnetic State of SrOsO
Shreya Das, Anita Halder, Atasi Chakraborty +2
Motivated by the recent report on high T ferromagnetic insulating state of single transition metal containing double perovskite compound, SrOsO (Wakabayashi et. al., Na…