Magnetoresistance of ErNi2B2C under high pressure
1997
Abstract The transverse magnetoresistance (MR) of ErNi 2 B 2 C at 4.2 K has been measured in the field direction parallel and perpendicular to the c -axis ( H ∥ c and H ⊥ c ) under high pressure up to 2.2 GPa. It is found that the upper critical field H c2 is anisotropic and decreases with increasing pressure having a rate of d H c2 /d P = −0.02 T/GPa and −0.01 T/GPa for H ∥ c and H ⊥ c , respectively. For H ⊥ c , metamagnetic transition occurs at H ′ = 2T and H ′ increases with pressure with +0.1T/GPa.
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