Physics – Condensed Matter
Scientific paper
2001-07-29
Physics
Condensed Matter
To be published in the proceeding of the International Conference on High Pressure Science and Technology(AIRAPT-18),Beijing,C
Scientific paper
10.1088/0953-8984/14/44/376
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 $AT^{2}$ correspondingly to the metamagnetic transition.
Amaya K.
Haga Yoshinori
Hanazono K.
Kobayashi Tatsuo C.
Onuki Yoshichika
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