2 papers
cond-mat.str-el2025
Refined spin Hamiltonian on the Cairo pentagonal lattice of Bi2Fe4O9
Emma Y. Lenander, Frida B. Nielsen, Jakob Lass +14
The frustrated magnet Bi2Fe4O9 has been reported to exhibit complex spin dynamics coexisting with conventional spin wave excitations. The magnetic Fe3+ (S = 5/2) ions are arranged…
cond-mat.str-el2025
Bond-dependent interactions and ill-ordered state in the honeycomb cobaltate BaCo(AsO)
A. Devillez, J. Robert, E. Lhotel +13
The ground state and Hamiltonian of the honeycomb lattice material BaCo(AsO) hosting magnetic Co, have been debated for decades. The recent proposal for an…