Structural and magnetic phase transitions in Pr0.7Ca0.3MnO3 at high pressures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F10%3A00356861" target="_blank" >RIV/68378271:_____/10:00356861 - 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

Structural and magnetic phase transitions in Pr0.7Ca0.3MnO3 at high pressures

Original language description

The crystal structure and Raman spectra of Pr0.7Ca0.3MnO3 manganite at high pressures of up to 30 GPa and the magnetic structure at pressures of up to 1 GPa have been studied. A structural phase transition from the orthorhombic phase of the Pnma symmetryto the high-pressure orthorhombic phase of the Imma symmetry has been observed at P 15 GPa and room temperature. Anomalies of the pressure dependences of the bending and stretching vibrational modes have been observed in the region of the phase transition. A magnetic phase transition from the initial ferromagnetic ground state (TC = 120 K) to the A-type antiferromagnetic state (TN = 140 K) takes place at a relatively low pressure of P = 1 GPa in the low-temperature region. The structural mechanisms ofthe change of the character of the magnetic ordering have been discussed.

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

2010

Confidentiality

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

Name of the periodical

JETP Letters

ISSN

0021-3640

e-ISSN

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Volume of the periodical

92

Issue of the periodical within the volume

9

Country of publishing house

US - UNITED STATES

Number of pages

5

Pages from-to

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UT code for WoS article

000286335700005

EID of the result in the Scopus database

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