25 research outputs found
Outcomes of patients with loco-regionally recurrent or new primary squamous cell carcinomas of the head and neck treated with curative intent reirradiation at Mayo Clinic
Realization of Giant Magnetoelectricity in Helimagnets
We show that low field magnetoelectric (ME) properties of helimagnets Ba0.5Sr1.5Zn2(Fe1-xAlx)(12)O-22 can be efficiently tailored by the Al-substitution level. As x increases, the critical magnetic field for switching electric polarization is systematically reduced from similar to 1 T down to similar to 1 mT, and the ME susceptibility is greatly enhanced to reach a giant value of 2.0 x 10(4) ps/m at an optimum x = 0.08. We find that control of the nontrivial orbital moment in the octahedral Fe sites through the Al substitution is crucial for fine-tuning the magnetic anisotropy and obtaining the conspicuously improved ME characteristics.open11961sciescopu