Magnetic phase diagram of the charge oredered manganite Pr0.8Na0.2MnO3

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F01%3A00004133" target="_blank" >RIV/60461373:22310/01:00004133 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Magnetic phase diagram of the charge oredered manganite Pr0.8Na0.2MnO3

Original language description

Pr1-xNaxMnO3 solid solutions up to x=0.25 were prepared. Irrespective of magnetic order all samples are electrically insulating. The TC reaches maximum at 125 K for x = 0.15; the samples with x ł 0.2 are charge-ordered antiferromagnets. The x = 0.2 antiferromagnetic charge-ordered insulator (AFCO) can be switched to the ferromagnetic metallic state (FMM) by application of a relatively weak external magnetic field. This accompanied by huge CMR effect, irreversible at low temperatures. The neutron diffraction data show a decoupling of charge order (TCO=215 K) and long range AF order of the "pseudo" CE (TN=175 K). The specific heat at 14 T confirmed the transformation of the x = 0.2 sample to FMM state and nature of the AFCO-FMM transition was probed bymagnetic moment and electrical resistivity relaxation measurements. This compherensive characterization of the sample led to a complete determination of the magnetic phase diagram which demonstrated the near degeneracy of the ferro- and ant

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2001

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal Applied Phys.

ISSN

0021-8979

e-ISSN

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Volume of the periodical

89

Issue of the periodical within the volume

11

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

2

Pages from-to

7413-7415

UT code for WoS article

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EID of the result in the Scopus database

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