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JST Press Release

July 31, 2013
Japan Science and Technology Agency (JST)
5-3, Yonbancho, Chiyoda-ku, Tokyo 102-8666
URL http://www.jst.go.jp/EN/index.html

Opening the door to predictive calculation of high temperature superconductors

Theoretical materials design of high temperature superconductors is a true Holy Grail of condensed matter physics. To achieve this goal, a predictive method to calculate superconducting transition temperatures is highly desired. We expand the frontier of density functional theory, and formulated a new non-empirical scheme which is applicable not only for conventional superconductors mediated by phonons, but also unconventional superconductors mediated by plasmons. We applied the new method to a typical plasmon-assisted superconductor, elemental lithium under high pressures, and obtained an excellent agreement between theory and experiment.

Researcher Information

Research Area: "New Materials Science and Element Strategy",
Research Theme: "Theoretical materials design of next-generation devices exploiting non-bulk environments"

Journal Information

Ryosuke Akashi and Ryotaro Arita
“Development of Density-Functional Theory for a Plasmon-Assisted Superconducting State: Application to Lithium Under High Pressures&lrquo;
Phys. Rev. Lett. 111, 057006 (2013)
doi: 10.1103/PhysRevLett.111.057006


[About Research]
Ryotaro Arita, Ph.D.
Associate Professor, Faculty of Engineering, University of Tokyo,

[About Program]
Fumiharu Kimura, Masashi Furukawa, Hiromi Oaku
Green Innovation Group, Department of Innovation Research, JST


JST, an integrated organization of science and technology in Japan, establishes an infrastructure for the entire process from the creation of knowledge to the return to the society. For more information, visit http://www.jst.go.jp/EN/