Elastic Properties of Bilayered Manganite La2-2xSr1+2xMn2O7
نویسندگان
چکیده
منابع مشابه
Transient differential reflectivity of ferromagnetic and paramagnetic phases in the bilayered manganite
Photoinduced effects in a single crystal of bilayered manganites, La2−2xSr1+2xMn2O7 (x=0.38), were investigated in a wide range of temperatures by pump-probe measurement at a photon energy of 1.6eV. In a ferromagnetic metallic state, significant enhancement of positive rise in differential reflectivity with a slow relaxing time of hundred picoseconds was observed just below TC=127K, indicating ...
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M. Matsukawa,1,* A. Tamura,1 S. Nimori,2 R. Suryanarayanan,3 T. Kumagai,1 Y. Nakanishi,1 M. Apostu,3 A. Revcolevschi,3 K. Koyama,4 and N. Kobayashi4 1Department of Materials Science and Technology, Iwate University, Morioka 020-8551, Japan 2National Institute for Materials Science, Tsukuba 305-0047, Japan 3Laboratoire de Physico-Chimie de L’Etat Solide, CNRS, UMR8182 Université Paris-Sud, 91405...
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Abstract: A pulse-echo technique, based on ultrasonic "long-bar" mode (LBM) velocity measurements, working up to 1700°C is described. Magnetostrictive transducers and ultrasonic lines used in a 40-85 kHz frequency range are detailed. The conditions of choice of fundamental parameters (frequency, line geometry, sample size) are discussed in relation with the nature and the microstructure of ...
متن کاملN ov 2 00 5 Enhancement of the anomalous Hall effect and spin glass behavior in the bilayered manganite
The Hall resistivity and magnetization have been investigated in the ferromagnetic state of the bilayered manganite La2−2xSr1+2xMn2O7 (x=0.36). The Hall resistivity shows an increase in both the ordinary and anomalous Hall coefficients at low temperatures below 50K, a region in which experimental evidence for the spin glass state has been found in a low magnetic field of 1mT. The origin of the ...
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ژورنال
عنوان ژورنال: Journal of the Physical Society of Japan
سال: 2002
ISSN: 0031-9015,1347-4073
DOI: 10.1143/jpsjs.71s.154