TY - JOUR AU - S.R Shinde AU - S.E Lofland AU - C.S Ganpule AU - S.M Bhagat AU - S.B Ogale AU - Ramamoorthy Ramesh AU - T Venkatesan AB - We report on the effects of using SrFe7Al5O19 as a buffer layer for growth of high-quality epitaxial barium-ferrite thin films on sapphire substrates. X-ray diffraction studies reveal that the buffer layer causes the interfacial strains in the barium-ferrite films to relax. As a result, the ferromagnetic resonance linewidth decreases even in the as-deposited case. However, the more striking result is the drastic reduction in the linewidth that occurs when the barium-ferrite film is deposited on the buffer layer and subsequently annealed at 1000°C for 2 h, allowing the observation of a large number of spin-wave resonances (up to the 15th mode), indicating an improvement in both the surface and interface characteristics. © 1999 American Institute of Physics. BT - Applied Physics Letters DO - 10.1063/1.123156 LA - eng M1 - 4 N1 - cited By 23 N2 - We report on the effects of using SrFe7Al5O19 as a buffer layer for growth of high-quality epitaxial barium-ferrite thin films on sapphire substrates. X-ray diffraction studies reveal that the buffer layer causes the interfacial strains in the barium-ferrite films to relax. As a result, the ferromagnetic resonance linewidth decreases even in the as-deposited case. However, the more striking result is the drastic reduction in the linewidth that occurs when the barium-ferrite film is deposited on the buffer layer and subsequently annealed at 1000°C for 2 h, allowing the observation of a large number of spin-wave resonances (up to the 15th mode), indicating an improvement in both the surface and interface characteristics. © 1999 American Institute of Physics. PB - American Institute of Physics Inc. PY - 1999 SP - 594 EP - 596 T2 - Applied Physics Letters TI - Improvement in spin-wave resonance characteristics of epitaxial barium-ferrite thin films by using an aluminum-doped strontium-ferrite buffer layer VL - 74 SN - 00036951 ER -