A. Kar

collaborators

5 papers

cond-mat.str-el2025

Flat band driven itinerant magnetism in the Co-pnictides CaCo $_{2}$ As $_{2}$ and LaCo $_{2}$ P $_{2}$

D. Subires, M. GarcÃa-DÃez, A. Kar +12

Flat bands can induce strong electron correlation effects that help stabilize both magnetic and superconducting states. Here, we carry out angle-resolved photoemission spectroscopy…

cond-mat.str-el2025

First-order phase transition driven by competing charge-order fluctuations in 1T'-TaTe $_{2}$

S. K. Mahatha, A. Kar, J. Corral-Sertal +20

First-order phase transitions, characterized by a discontinuous change in the order parameter, are intriguing phenomena in condensed matter physics. However, the underlying, materi…

cond-mat.str-el2025

Unravelling disorder in kagome Yb $_{0.5}$ Co $_{3}$ Ge $_{3}$

A. Korshunov, C. A. Fuller, C. -Y. Lim +7

The presence of phonon instabilities that leads to the formation of charge modulated states in kagome metals has allowed their classification based on the atomic displacements. Her…

cond-mat.str-el2025

Magnetoelastic coupling in intercalated transition metal dichalcogenides

A. Kar, R. Basak, Xue Li +27

The large van der Waals gap in transition metal dichalcogenides (TMDs) offers an avenue to host external metal atoms that modify the ground state of these 2D materials. Here, we ex…

cond-mat.str-el2025

Cascade of pressure induced competing CDWs in the kagome metal FeGe

A. Korshunov, A. Kar, C. -Y. Lim +14

Electronic ordering is prevalent in correlated systems, which commonly exhibit competing interactions. Here, we use x-ray diffraction to demonstrate a cascade of pressure induced o…

Flat band driven itinerant magnetism in the Co-pnictides CaCo2​As2​ and LaCo2​P2​

First-order phase transition driven by competing charge-order fluctuations in 1T'-TaTe2​

Unravelling disorder in kagome Yb0.5​Co3​Ge3​

Magnetoelastic coupling in intercalated transition metal dichalcogenides

Cascade of pressure induced competing CDWs in the kagome metal FeGe

Flat band driven itinerant magnetism in the Co-pnictides CaCo $_{2}$ As $_{2}$ and LaCo $_{2}$ P $_{2}$

First-order phase transition driven by competing charge-order fluctuations in 1T'-TaTe $_{2}$

Unravelling disorder in kagome Yb $_{0.5}$ Co $_{3}$ Ge $_{3}$