Magnetostrictive response of metallic glasses

Abstract
The ultimate response of sensors employing the magnetostrictive properties of metallic glasses depends on efficient transfer of strain between the system under investigation and the transducer. In this paper the effect on magnetostriction of applying bonding agents is studied using a model system, which takes account of application to a fiber-optic magnetometer. Measurements are presented of the dc M-H, λ-H, and λ-M loops. Results for as-received and stress-relieved samples are compared, and are discussed in terms of the domain and spin geometry of the specimens. The implications for fiber-optic magnetometers are considered.