Anomalies of magnetoelastic properties and insulator-metal phase transitions induced by a magnetic field in substituted praseodymium manganites

Authors
Popov, YF Kadomtseva, AM Vorob'ev, GP Kamilov, KI Ivanov, VY Mukhin, AA Balbashov, AM
Citation
Yf. Popov et al., Anomalies of magnetoelastic properties and insulator-metal phase transitions induced by a magnetic field in substituted praseodymium manganites, PHYS SOL ST, 43(8), 2001, pp. 1533-1537
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF THE SOLID STATE
ISSN journal
10637834 → ACNP
Volume
43
Issue
8
Year of publication
2001
Pages
1533 - 1537
Database
ISI
SICI code
1063-7834(2001)43:8<1533:AOMPAI>2.0.ZU;2-J
Abstract
The magnetostriction of Pr0.6Ca0.4MnO3 and Pr0.65Ca0.28Sr0.07MnO3 manganite crystals is investigated in pulsed magnetic fields up to 250 kOe. The fiel d-induced phase transitions from the charge-ordered antiferromagnetic (para magnetic) state to the metallic ferromagnetic state are studied. It is foun d that these transitions are accompanied by abrupt negative jumps in the lo ngitudinal and transverse magnetostrictions and a strong hysteresis at low temperatures. The threshold fields of transitions are determined, and the H -T phase diagrams are constructed. (C) 2001 MAIK "Nauka/Interperiodica".