Tunneling Conductivity of Manganites with Negative Magnetoresistance

Autor:	A. Abal'oshev, Stanislaw J. Lewandowski, V. Yu. Tarenkov, I. Abal'osheva, V.M. Svistunov, Yu. V. Medvedev
Rok vydání:	2000
Předmět:	Materials science Condensed matter physics Magnetoresistance Ferromagnetism Impurity visual_art visual_art.visual_art_medium General Physics and Astronomy Ceramic Conductivity Quantum tunnelling
Zdroj:	ResearcherID
ISSN:	1898-794X 0587-4246
DOI:	10.12693/aphyspola.97.827
Popis:	Tunneling investigations of ferromagnetic La 0.6 Sr0.4 MnO 3 ceramic samples showing negative magnetoresistance effect were carried out in two types of junctions: symmetric "break junctions" and asymmetric ceramicsinsulator-metal junctions. The results are consistent with the presence of small ferromagnetic clnsters in the insulating barriers of both types of junctions and suggest a two-phase state realized by impurity mechanism of phase separation. PACS numbers: 75.70.Ρa
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56b0595a06c0d356844f8ba74222ab95 https://doi.org/10.12693/aphyspola.97.827 Zobrazit plný text záznamu