Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session C08: Superconductivity: Copper Oxide - Pseudogap
2:30 PM–5:18 PM,
Monday, March 4, 2019
BCEC Room: 150
Sponsoring Units: DMP DCMP
Chair: Pengcheng Dai, Rice University
Abstract: C08.00013 : Ultrasonic study of La-based high-Tc superconductor under high magnetic field*
4:54 PM–5:06 PM
(Institut de Chimie de la Matière Condensée de Bordeaux)
(Muroran Institute Of Technology)
In order to further investigate the relationship between magnetism and superconductivity we have performed measurements of ultrasonic velocity and attenuation in LSCO. Around p=1/8, several anomalies are observed in the sound velocity and attenuation, associated with superconductivity and magnetic freezing. The competition between the two orders parameters is tuned with a magnetic field which enhances magnetic correlations at the expense of superconductivity2.
 M. H. Julien, Physica B 329-333 (2000) 693.
 J. Chang et al., Phys. Rev. B 78 (2008) 104525.
*We acknowledge support from CNRS, European Magnetic Field Laboratory, French ANR (UNESCOS, contract ANR-14-CE05-0007), the Laboratoire d’Excellence LANEF (ANR-10-LABX-51-01) and the Université Grenoble-Alpes (SMIng-AGIR)
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