The structure of the new compound YBaCo4O7 with a magnetic feature

Spin-liquid phase and order by disorder of classical Heisenberg spins on the swedenborgite lattice

“…The magnetic Co atoms in this structure reside on the so-called swedenborgite lattice and at present there exist examples of systems that order magnetically and some that do not [15][16][17][18][19][20][21][22]. In this Rapid Communication, we undertake an in-depth study of a minimal model for these compounds and show evidence that both classical spin-liquid phases as well as entropic order-by-disorder are potentially existent in these systems.…”

Controlling structural distortion in the geometrically frustrated layered cobaltate YBaCo4O7+δby Fe substitution and its role on magnetic correlations

“…The geometry of the lattice structures causes spin frustrations allowing to tune magnetic properties by controlling the lattice geometry. In this regards, the new class of geometrically frustrated layered mixed-valence cobaltate YBaCo 4 O 7+δ and its derivatives with an extended Kagomé structure, belonging to the swedenborgite compound family [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16], are of interest to us.…”

Structural and magnetic properties of the cobaltate series (BaSr)4−xLa2xCo

“…In recent years, research has been expanded to include cobaltates containing Co 4+ or Co 3+ in tetrahedral sites, such as the Ba 2 CoO 4 , 9,10 , the oxocobaltates Na 6 Co 2 O 6 , Na 5 CoO 4 , 11 and the geometrically frustrated systems LnBaCo 4 O 7 (where Ln= lanthanides). [12][13][14][15][16] As a result, new and interesting physics has continued to emerge as each of these systems display various exotic magnetic phases. Compounds that exhibit Co 3+ in both octahedral and tetrahedral lattice sites are less often found, and typically rely on an accurate control of the oxygen content (e.g.…”