Pressure-induced Superconductivity in a Ferromagnet UGe${}_2$ -- Resistivity Measurements in Magnetic Field --

Abstract

The electrical resistivity measurements in the magnetic field are carried out on the pressure-induced superconductor UGe${}_2$. The superconductivity is observed from 1.06 to 1.44 GPa. The upper critical field of $H_{C2}$ is anisotropic where $H_{C2}(T)$ exhibits positive curvature for $H//b$ and $c$-axis. The characteristic enhancement of $H_{C2}$ is reconfirmed for $H//a$-axis. In the temperature and field dependence of resistivity at $P>P_C$ where the ferromagnetic ordering disappears, it is observed that the application of the external field along the {\it a}-axis increases the coefficient of Fermi liquid behavior $A{T}^2$ correspondingly to the metamagnetic transition.

To be published in the proceeding of the International Conference on High Pressure Science and Technology(AIRAPT-18),Beijing,China,23-27 July 2001

References in corpus (3)

• Pressure dependence of the magnetization in the ferromagnetic superconductor UGe_2
• Coupled CDW and SDW Fluctuations as an Origin of Anomalous Properties of Ferromagnetic Superconductor UGe_2
• Magnetic Properties of a Pressure-induced Superconductor UGe${}_2$

Cited by in corpus (4)

• Review of U-based Ferromagnetic Superconductors: Comparison between UGe2, URhGe, and UCoGe
• Evidence for Uniform Coexistence of Ferromagnetism and Unconventional Superconductivity in UGe_2: A ^73Ge-NQR Study under Pressure
• Cooperative Phenomenon of Ferromagnetism and Unconventional Superconductivity in UGe${}_2$: A ^73^Ge-NQR Study under Pressure
• Nested mirror optics for neutron extraction, transport, and focusing