Barium Archives - IEEE Transactions on Magnetics

Ferromagnetic Hysteresis Behavior of Ferroic and Multiferroic Ceramics From 100 to 400 K for Nonlinear Pulse Forming Line Applications

Microwave generation in ferromagnetic nonlinear pulse forming lines (NPFLs) depends strongly on material properties, particularly the damped gyromagnetic precession of a ferrite’s magnetic moments. Additionally, temperature-dependent material properties, such as saturation magnetization and coercivity, are critical for assuring stable operation due to their influence on the output center frequency. In this study, we measured the […]

Magnetic order and sign of the Dzyaloshinskii-Moriya interaction in 2D antiferromagnet Ba2CoGe2O7 under applied magnetic field

May 1, 2021Henrik Thoma, Vladimir Hutanu, Rajesh Dutta, Arsen Gukasov, Vilmos Kocsis, Yusuke Tokunaga, Yasujiro Taguchi, Yoshinori Tokura, István Kézsmárki, Georg Roth, Manuel AngstEarly AccessBarium, Crystals, Frequency modulation, Germanium, Magnetic moments, Neutrons, Perpendicular magnetic anisotropy

The Dzyaloshinskii-Moriya interaction (DMI), that is the antisymmetric part of the exchange coupling tensor, favors the perpendicular arrangement of magnetic moment, thus, induces canting in otherwise collinear structures. The DMI is the prerequisite for the emergence of weak ferromagnetism in antiferromagnets, but can stabilize twisted magnetic textures, such as spin spirals, soliton lattices and magnetic […]