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Meeting MS&T23: Materials Science & Technology
Symposium Emergent Materials Under Extremes and Decisive In Situ Characterizations
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.


Capturing Laser Induced Dynamics of Materials via Single-Shot Ultrafast Transmission Electron Microscopy
HP-XAFS and Its Application to Topological Insulator Bi2Te3
In-situ Observations of the High Temperature Melting Behaviour of Ce-brannerite
In-situ Raman Studies on Synthesis and Oxidation of UC1-xNx
In-situ/Operando Characterization of Emerging Materials with MeV Ultrafast Electron Diffraction at SLAC National Accelerator Laboratory
In Situ Characterization and Modeling of Spent UO2 Fuel under Ion Irradiation
Irradiation Induced Structural and Thermal Conductivity Changes in Nuclear Fuels
Magnetic Scattering and Spectroscopy at High Pressures at APS and APS-U
Modulation of Structure-function Motifs in Optoelectronic Metal Halides Using High Pressure
Neutron Scattering for Studying Materials Under Extreme Conditions
Perspectives of IXS and NRS Studies in the APSU Era
Polar Magnets in High-Pressure Exotic Perovskites
Pressure-induced Non-monotonic Crossover of Steady Relaxation Dynamics in a Metallic Glass
Pressure Driving Dual-layer Superconductivity in 4Hb-TaSe2 TMD
Structural Manipulation of Ceramic Materials via Extreme Conditions
Will High-entropy Carbides Be Enabling Materials for Extreme Environments?

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