Magnetoelastic Anomalies and Suppression of Jahn-Teller Distortions in La_{1-x}Sr_{x}MnO_{3} by Pulsed Magnetic Fields

• Authors: A. Kadomtseva , Yu. Popov , G. Vorob'ev , K. Kamilov , V. Ivanov , A. Mukhin , A. Balbashov
• Languages of publication: EN

Abstracts

EN

Thermal expansion Δl/l(T) and magnetostriction λ_{∥, ⊥ }(H,T) in the pulsed magnetic fields H up to 250 kOe were studied in the single La_{1-x}Sr_{x}MnO_{3} crystals (x=0.1, 0 .125, and 0.15) at temperatures T=10-320 K. Anomalies in the Δl/l (T) curves were observed near a charge (polaron) ordering (T_{p}) and structural transitions between orthorhombic Jahn-Teller distorted O' phase and high temperature orthorhombic (pseudocubic) O^{*} one (T'_{s}). A noticeable increase in the field-induced magnetostriction λ_{∥, ⊥ }(H) was revealed in the O' phase at T_{p}

Keywords

EN

75.30.Kz; 75.50.Pp

Discipline

• 75.50.Pp: Magnetic semiconductors
• 75.30.Kz: Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)(for ferroelectric phase transitions, see 77.80.B-; for superconductivity phase diagrams, see 74.25.Dw)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 97
• Issue: 3
• Pages: 599-602

Dates

published

2000-03

Contributors

author

A. Kadomtseva

• Moscow State University, Leninskie Gori, 119899 Moscow, Russia

author

Yu. Popov

• Moscow State University, Leninskie Gori, 119899 Moscow, Russia

author

G. Vorob'ev

• Moscow State University, Leninskie Gori, 119899 Moscow, Russia

author

K. Kamilov

• Moscow State University, Leninskie Gori, 119899 Moscow, Russia

author

V. Ivanov

• General Physics Institute of the RAS, 38 Vavilov St., 117942 Moscow, Russia

author

A. Mukhin

• General Physics Institute of the RAS, 38 Vavilov St., 117942 Moscow, Russia

author

A. Balbashov

• Moscow Power Engineering Inst., 14 Krasnokazarmen St., 105835 Moscow, Russia

Identifiers

DOI

10.12693/APhysPolA.97.599