Searching for superconducting hydrides — The experimental achievements

Abstract

In this article, recent advances in the experimental searching are reviewed. To date, there have been several tens of theoretical papers that predict the superconductivity of hydrides. On the other hand, there have been a few publications about experimental observations of the superconductivity despite the huge efforts in exploration. In this review, we introduce the ideas on how to approach to high critical temperature by hydrides, and the current achievements by experiments are summarized.