Date9th, Dec 2021

Summary:

Ultra-thin metal oxide LaNiO3 sandwiched between two insulating layers of LaAlO3 exhibits a 10-fold increase of voltage caused by thermoelectric energy conversion, scientists from Tokyo Tech have demonstrated. This discovery opens up new avenues for development of high-performance thermoelectric materials by designing the laminate structure of different oxides.

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Authors :

Masatoshi Kimura1, Xinyi He1, Takayoshi Katase1,2*, Terumasa Tadano3, Jan M. Tomczak4, Makoto Minohara5, Ryotaro Aso6, Hideto Yoshida7, Keisuke Ide1, Shigenori Ueda8,9,10, Hidenori Hiramatsu1,11, Hiroshi Kumigashira12,13, Hideo Hosono11, and Toshio Kamiya1,11*

Affiliations :

1 Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Japan

2 PRESTO, Japan Science and Technology Agency, Japan

3 National Institute for Materials Science, Japan

4 Institute of Solid State Physics, Vienna University of Technology, Austria

5 Research Institute for Advanced Electronics and Photonics, National Institute of Advanced Industrial Science and Technology, Japan

6 Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Japan

7 The Institute of Scientific and Industrial Research, Osaka University, Japan

8 Research Center for Functional Materials, National Institute for Materials Science, Japan

9 Research Center for Advanced Measurement and Characterization, National Institute for Materials Science, Japan

10 Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, Japan

11 Materials Research Center for Element Strategy, Tokyo Institute of Technology, Japan

12 Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Japan

13 Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Japan