Enhanced magnetization of CuCr2O4 thin films by substrate-induced strain

Laser-induced magnetization dynamics of lanthanide-doped permalloy thin films.

We investigate the effect of Ho, Dy, Tb, and Gd impurities on the femtosecond laser-induced magnetization dynamics of thin Permalloy films using the time-resolved magneto-optical Kerr effect. Varying the amount of Ho, Dy, Tb content from 0% to 8%, we observe a gradual change of the characteristic demagnetization time constant from approximately 60 to approximately 150 fs. In contrast, Gd concen...

Enhanced methanol sensing performance of oblique deposited WO3 thin films

Methanol (CH3OH) is a colorless liquid with a mild odor. The wide ranges of applications, toxicity and clinical implications of methanol have made necessary to develop reliable and high-performance methanol sensors. In this paper, WO3 thin films were deposited on SiO2/Si substrates by e-beam evaporation technique under normal and oblique angles and then post-annealed at 500 °C with a flow of ox...

Millimicrosecond Magnetization Reversal in Thin Magnetic Films

From ferromagnetic resonance xperiments and from calculations based on the modified Landau-Lifschitz equation, switching times for the coherent rotation of the magnetization in thin, permalloy-type films have been predicted to lie in the range of 1 mi1limicrosecond.l First measurements by D. 0. Smith et a1,2 utilizing a travellingwave oscilloscope with a response time of 2 mpec, indicated swi...

Thin Films: Understanding Strain‐Induced Phase Transformations in BiFeO3 Thin Films (Adv. Sci. 8/2015)

The Effects of Multiphase Formation on Strain Relaxation and Magnetization in Multiferroic BiFeO3 Thin Films

Multiferroic materials simultaneously display ferroelectric and ferromagnetic properties in the same phase. [1] In the 1960s to 1970s, these materials were first investigated to understand the magnetoelectric (ME) coupling effect. Recently, there is increased interest in multiferroic materials because of their potential applications in novel devices using the magnetoelectric effects including s...