Synthesis and Characterization of Pure Infinite Layer Ni+ Nickelates: LnNiO2 (Ln = La, Nd, Pr) and La3Ni2O6

Autor:	Konstantin A. Lokshin, Daniel Mitchell, Maxim V. Lobanov, Viktor Struzhkin, Takeshi Egami
Rok vydání:	2022
Předmět:	Electronic Optical and Magnetic Materials
Zdroj:	ECS Journal of Solid State Science and Technology. 11:044008
ISSN:	2162-8777 2162-8769
DOI:	10.1149/2162-8777/ac6623
Popis:	A synthesis method of pure low valence nickelates using a custom built H2 circulation apparatus is described. Pure infinite layer LnNiO2 (Ln = La, Nd, Pr) and La3Ni2O6 nickelates have been successfully prepared using this method and characterized by x-ray diffraction. Resistivity of La3Ni2O6 was measured as a function of temperature and pressure up to ∼2 GPa and revealed significant pressure-induced changes in both magnitude and pressure dependence of resistivity. The existence of a hidden insulator-metal transition in La3Ni2O6 is proposed at pressures above 100 GPa.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c90ce4b8b780a64dfc213d0564788ef9 https://doi.org/10.1149/2162-8777/ac6623 Zobrazit plný text záznamu