Related Experiment Video
Updated: Jun 3, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
Magnetic properties and phase change features in Fe-doped Ge-Sb-Te
Wen-Dong Song1, Lu-Ping Shi, Tow-Chong Chong
1Data Storage Institute, (A *STAR) Agency of Science, Technology and Research, DSI Building, 5 Engineering Drive 1, 117608, Singapore.
Abstract:
The relationship between magnetic property and phase change features in Fe-doped Ge-Sb-Te has been studied. Fe-doped Ge-Sb-Te is a phase change magnetic material, which exhibits a fast phase change feature and different magnetic, optical and electrical properties between amorphous and crystalline states. However, the crystallization temperature increases and crystallization rate drops with an increase of Fe doping content. Fe doping content should be less than the solid solubility limit so that Fe-doped Ge-Sb-Te has both magnetic property and phase change features. Fe-doped Ge-Sb-Te at crystalline state shows p-type conduction and has a high hole concentration. The Ruderman-Kittel-Kasuya-Yosida indirect interaction via carriers is the origin of the ferromagnetism in Fe-doped Ge-Sb-Te.
Related Concept Videos
Ferromagnetism
Diamagnetism
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets.
Types Of Superconductors
