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Professor T. Takahashi -- Discovery of a new topological material --

-Significant progress toward the development of next generation energy-saving devices-

The research group consisting of Associate Professor Takafumi Sato of the Graduate School of Science, Tohoku University; Professor Yoichi Ando, The Institute of Scientific and Industrial Research, Osaka University; and Professor Takashi Takahashi, Advanced Institute for Material Research, Tohoku University, has established that tin telluride (SnTe) semiconductors, which has been studied as ordinary narrow-gap semiconductor for over 40 years, is a completely new type of topological material. The research group found that SnTe bears a topological current protected in a enewf principle essentially different from the known topological materials. This achievement would contribute to developing the materials to be utilized in spintronic technology underlying the next-geaneration energy-saving devices.

The research results have been published onine in Nature Physics on September 30, 2012 (GMT).

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