| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Emergent Materials Under Extremes and Decisive In Situ Characterizations
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| Presentation Title |
Polar Magnets in High-Pressure Exotic Perovskites |
| Author(s) |
Yifeng Han, Alexandra Navrotsky |
| On-Site Speaker (Planned) |
Yifeng Han |
| Abstract Scope |
Polar magnets exhibit a unique combination of electrical polarization and magnetization, making them promising materials for spintronic devices. Development of new polar magnets is a significant challenge due to the incompatibility of ferroelectricity and ferromagnetism. The archetypal perovskite structure is a simple ABO3 type with larger ions occupied in the A-site with 12-fold coordination and smaller ions in the B-site with 6-fold coordination. Under high-pressure conditions however, it is possible to put ions with smaller radii into the A-site which result structural distortion and a decrease in the tolerance factor. Such distorted perovskites can be polar magnets and often exhibit unique properties, such as low-temperature ion exchange, helical magnetic structure, and universal A-site splits. We present a summary of high-pressure LN-type polar magnets. |