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Ultrasonic studies in the La1.85Sr0.15CuO4 single crystal under the magnetic field

✍ Scribed by Tetsuo Hanaguri; Risaku Toda; Tetsuo Fukase; Isao Tanaka; Hironao Kojima

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
159 KB
Volume
185-189
Category
Article
ISSN
0921-4534

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✦ Synopsis

Temperature dependence of the ultrasonic attenuation a and the sound velocity Vs have been measured in a Lal.85Sro.15CuO4 single crystal under the magnetic field. A jump and a kink in Vs have been observed at the superconducting transition temperature Tc in the C33 and the CI! mode, respectively. A peak in ~ has been also observed at Tc in the C33 mode. Furthermore, an anomalous stiffening in V$ and an attenuation peak have been observed below 10K. Magnetic field effects on these elastic anomalies and a possibility of a new phase transition below 10K are presented.

πŸ“œ SIMILAR VOLUMES

Thermal conductivity of single crystal L
Thermal conductivity of single crystal La1.85Sr0.15CuO4βˆ’y
✍ Katsunori Mori; Yoshiaki Ogiso; Yosikazu Isikawa; Kiyoo Sato; Michiaki Matsukawa πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 148 KB

We have measured the temperature dependence of the thermal conductivity ~b in direction parallel to the copper-oxygen planes for a single crystal of LaLssSr0.1sCuO4-~ in the temperature range from I.gK to 50K. tcab shows the enhancement at the superconducting transition temperature T~. Below 15K, tz