Kapellasite: a kagome quantum spin liquid with competing interactions.... The Hamiltonian is determined from a fit of a high-temperature series expansion to bulk susceptibility data and possesses competing exchange interactions....
Magnetic ground state of coupled edge-sharing cuo_2 spin-chains... Wedetermine the ground state magnetic structure as function of the spin-chainfilling and quantify the competing exchange interactions.Comment:...
Frustrated heisenberg antiferromagnet on a pyrochlore lattice... When the ratio of the two competing exchange couplings is varied,the first-order (second-order) quantum phase transition occurs between the twospin gap phases (the spin-gap and the antiferromagnetic phases)....
Auctions, haggling, and fixed prices: a survey of recent literature... We provide a description of competing exchange mechanisms, explain their roles, highlight their uses and strengths, and outline some strategic implications of the various structures for buyers and sellers
