Magnetism and superconductivity in CeCu2Ge2 under high pressures and magnetic fields

作者:Honda Fuminori*; Maeta Takashi; Hirose Yusuke; Onuki Yoshichika; Miyake Atsushi; Settai Rikio
来源:Journal of the Korean Physical Society, 2013, 63(3): 345-348.
DOI:10.3938/jkps.63.345

摘要

We measured the electrical resistivity of CeCu2Ge2 under various high pressures and strong magnetic fields. Beyond the previous antiferromagnetic critical pressure P (c) similar to 8 GPa, the antiferromagnetic phase is found to exist at much higher pressure of 10.9 GPa even in magnetic fields up to 8 T. The pressure vs. temperature phase diagram and the magnetic field vs. temperature phase diagram under high pressure were constructed. The pressure-induced antiferromagnetic phase is still observed and coexists with pressure-induced superconductivity at 10.9 GPa.

  • 出版日期2013-8