Temperature and frequency dependence of linewidth in BaFe<inf>12</inf>O<inf>19</inf>

A cut-off millimeter wave resonator technique for mapping magnetic parameters in hexagonal ferrites

“…Hence, the relaxation linewidth H = 2ω r /γ = 74 ± 4 Oe. The typical value for the FMR linewidth in monocrystal barium hexaferrite falls in the range 30-50 Oe [17][18][19]. Thus, the value obtained in this work is in agreement with previous reports.…”

Recent advances in processing and applications of microwave ferrites

“…The smallest linewidths obtained for LPE grown epitaxial barium hexaferrite on single crystal hexagallate (SrGa 12 O 19 ) substrates were $45 Oe at 60 GHz [66]. These values should be compared with DHo10 Oe for the best barium hexaferrite single crystal sphere [54,67,68] and a value of $10 Oe predicted for Mn-doped hexagonal ferrite [69,70]. Recently, hexagonal ferrite films having the c-axis perpendicular to the substrate plane have been grown by LPE on PLD grown seed layers on commercially available substrates [71][72][73][74][75].…”

Magnetic anisotropy and domain structure in epitaxial CoFe2O4 thin films

“…Potential applications of these materials include microwave devices, magnetic and magneto-optic recording. 5,6 Despite the complex stoichiometry of ferrites the introduction of new deposition techniques such as pulsed laser deposition ͑PLD͒ has allowed the preparation of films with the right composition and exotic properties, different from those typically known in the bulk phase. The reasons for such performance are multiple but mainly due to following: ͑a͒ the growth can be easily achieved in high oxygen pressure, allowing one to overcome the problem of oxygen deficiency in the films; and ͑b͒ the high energy of atoms in the PLD plume to some extent can help to stabilize the growth process in nonequilibrium materials.…”