Magnetoelastic Properties of La_{0.744}Ba_{0.186}MnO_3 Single Crystals

• Authors: Yu. Bukhantsev , Ya. Mukovskii , S. Vasiliev , B. Kundys , H. Szymczak
• Languages of publication: EN

Abstracts

EN

Magnetoelastic properties of La_{0.744}Ba_{0.186}MnO_3 single crystals have been studied. The basic magnetoelastic constants of the crystal have been estimated using the data of magnetostriction and magnetization measurements, which have been carried out in [010] and [110] crystallographic directions in a wide temperature range from 10 K to 150 K. The anomaly of the thermal expansion has been observed at about 185 K. Near this anomaly two almost degenerated phase transitions have been observed. One of these transitions may be related to the structural phase transition, while the second one to the occurrence of spontaneous strains. The magnetostriction of La_{0.744} Ba_{0.186}MnO_3 single crystal seems to arise due to the effect of applied field on the spontaneous strains.

Keywords

EN

75.47.Lx; 75.30.Gw; 75.80.+q

Discipline

• 75.30.Gw: Magnetic anisotropy
• 75.47.Lx: Magnetic oxides
• 75.80.+q: Magnetomechanical effects, magnetostriction(for magnetostrictive devices, see 85.70.Ec)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2004
• Volume: 105
• Issue: 1-2
• Pages: 155-162

Dates

published

2004-01/02

received

2003-09-15

Contributors

author

Yu. Bukhantsev

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland

author

Ya. Mukovskii

• Moscow State Steel & Alloys Institute, Moscow 117936, Russia

author

S. Vasiliev

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland

author

B. Kundys

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland

author

H. Szymczak

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland

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Identifiers

DOI

10.12693/APhysPolA.105.155