New! Sign up for our free email newsletter.
Science News
from research organizations

Direct observation of topology hidden inside materials

Determining the topological nature of materials by their substances is more important than their appearance

Date:
March 7, 2018
Source:
Osaka University
Summary:
Topology hidden inside materials in the matter group called cerium monopnictides has been determined for the first time in the world.
Share:
FULL STORY

Topology hidden inside materials in the matter group called cerium monopnictides has been determined for the first time in the world.

The topological electronic phase distinguished by the latent topology inside materials is the award-winning subject of the Nobel Prize in Physics 2016, research on which is now being actively conducted all over the world. In the topological electronic phase, an electronic state peculiar to the topological electronic phase occurs at the surface of materials (appearance), reflecting topology hidden inside materials (substances). For this reason, topology of a substance has been judged only by its appearance.

A joint research group succeeded in observing the topological phase transition in which a material changes to the topological electronic phase by using soft X-rays, light suitable for determining the topology of materials by their substances rather than by their appearance. Since this research achievement enables direct determination of the essential topology hidden inside materials without judging the surface of the materials, it is expected that employing this technique will lead to the discovery of more diverse topological electronic phases.


Story Source:

Materials provided by Osaka University. Note: Content may be edited for style and length.


Journal Reference:

  1. Kenta Kuroda, M. Ochi, H. S. Suzuki, M. Hirayama, M. Nakayama, R. Noguchi, C. Bareille, S. Akebi, S. Kunisada, T. Muro, M. D. Watson, H. Kitazawa, Y. Haga, T. K. Kim, M. Hoesch, S. Shin, R. Arita, Takeshi Kondo. Experimental Determination of the Topological Phase Diagram in Cerium Monopnictides. Physical Review Letters, 2018; 120 (8) DOI: 10.1103/PhysRevLett.120.086402

Cite This Page:

Osaka University. "Direct observation of topology hidden inside materials." ScienceDaily. ScienceDaily, 7 March 2018. <www.sciencedaily.com/releases/2018/03/180307095153.htm>.
Osaka University. (2018, March 7). Direct observation of topology hidden inside materials. ScienceDaily. Retrieved June 17, 2024 from www.sciencedaily.com/releases/2018/03/180307095153.htm
Osaka University. "Direct observation of topology hidden inside materials." ScienceDaily. www.sciencedaily.com/releases/2018/03/180307095153.htm (accessed June 17, 2024).

Explore More

from ScienceDaily

RELATED STORIES