Journal
PHYSICA C
Volume 341, Issue -, Pages 1877-1878Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0921-4534(00)01236-3
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Underdoped YBa2Cu3O7-delta Single crystals exhibit a large, positive c-axis magnetoresistance that is strikingly linear over a wide magnetic field range up to 60 T. This linear magnetoresistance is observed at temperatures near or below T-c, once sufficient magnetic field has been applied to suppress superconductivity. The measurements are done in the longitudinal geometry, with current and magnetic field both along the c-axis (I\\B\\c). The linear magnetoresistance can be large, giving as much as a 35% increase in resistance between 30 T and 60 T. It also exhibits very strong temperature dependence, increasing by as much as an order of magnitude as the temperature is reduced from 100 K to 10 K.
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