Editing Samarium (section)

===Magnets===
An important use of samarium is [[samarium–cobalt magnet]]s, which are nominally {{chem2|SmCo5}} or {{chem2|Sm2Co17}}.<ref>{{cite web |url=https://www.stanfordmagnets.com/two-grades-of-samarium-cobalt-magnets-smco5-sm2co17.html |title=Two Grades of Samarium Cobalt Magnets: SmCo5 & Sm2Co17 |last=Marchio |first=Cathy |date=Apr 16, 2024 |website=Stanford Magnets |access-date=Aug 23, 2024}}</ref> They have high permanent magnetization, about 10,000 times that of iron and second only to [[neodymium magnet]]s. However, samarium magnets resist demagnetization better; they are stable to temperatures above {{convert|700|C|F}} (cf. 300–400&nbsp;°C for neodymium magnets). These magnets are found in small motors, headphones, and high-end magnetic [[Pick up (music technology)|pickup]]s for guitars and related musical instruments.<ref name="emsley" /> For example, they are used in the motors of a [[solar power|solar-powered]] [[electric aircraft]], the [[Solar Challenger]], and in the [[Vintage Noiseless|Samarium Cobalt Noiseless]] electric guitar and bass pickups.