# Fileset

[tsta_a_2691690_sm0610.pdf](https://mdr.nims.go.jp/filesets/f60bc24a-4732-480b-9d66-bbdadfa025dc/download)

## Creator

[Satoshi Nakano](https://orcid.org/0000-0002-7010-9867), [Hiroshi Fujihisa](https://orcid.org/0000-0001-9308-153X), [Hiroshi Yamawaki](https://orcid.org/0000-0002-0145-9935), [Yuki Shibazaki](https://orcid.org/0000-0002-0550-6719), [Takumi Kikegawa](https://orcid.org/0000-0001-8207-9987), [Shin-Ichi Orimo](https://orcid.org/0000-0002-4216-0446)

## Rights

[Creative Commons BY Attribution 4.0 International](https://creativecommons.org/licenses/by/4.0/)

## Other metadata

[Pressure-temperature stable conditions of the hydride-ion conductive phase in BaH                    <sub>2</sub>                    and SrH                    <sub>2</sub>](https://mdr.nims.go.jp/datasets/ca1c1d1c-fd79-443f-96f1-db2063cffa66)

## Fulltext

supplementary material  Pressure-temperature stable conditions of the hydride-ion conductive phase in BaH2 and SrH2 Satoshi Nakano a* Hiroshi Fujihisab Hiroshi Yamawakib Yuki Shibazakic Takumi Kikegawac Shin-ichi Orimod,e aResearch Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, Japan; bNational Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan; cPhoton Factory (PF), Institute of Materials Structure Science (IMSS), High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, Japan; dAdvanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, Miyagi, Japan; eInstitute for Materials Research (IMR), Tohoku University, Sendai, Miyagi, Japan  * Corresponding author: Satoshi Nakano, e-mail: NAKANO.Satoshi@nims.go.jp, address: National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan   mailto:NAKANO.Satoshi@nims.go.jp      Intensity (a.u.)2624222018161412108642θ (degrees, λ=0.417342Å)011102O111211013 113 020302 311213122204O313411115322413/131224 315106/404/502511/231331233126217/135515/142431202112/210002101(a) cotunnite-type BaH20.1 GPa, RT Pnmaa = 6.794(1), b = 4.168(1), c = 7.860(2)Intensity (a.u.)2624222018161412108642θ (degrees, λ=0.417342Å)Ni2In-type BaH25.2 GPa, RT P63/mmca = 4.315(1),  c = 5.654(2)(b)010011002O012110020O021112 013022O1211004/120023 122030114123032015/220131222132/025O O     Figure S1. X-ray diffraction (XRD) pattern of BaH2 with (a) the cotunnite-type structure obtained at 0.1 GPa, (b) Ni2In-type structure obtained at 5.2 GPa, and (c) AlB2-type structure obtained at 68.7 GPa and room temperature (RT). The three-digit number indicates the Miller index of the diffraction peak. “O” denotes diffraction peaks of MgO contamination. Intensity (a.u.)2624222018161412108642θ (degrees, λ=0.417342Å)(c) AlB2-type BaH268.7 GPa, RT Fm-3ma = 3.189(3),  c = 2.906(5)001010011110002111020012 021 112 120022121