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Report No.

Observation of an unusual magnetic anomaly in the superconducting mixed state of heavy-fermion compound UBe$$_{13}$$ by precise dc magnetization measurements

Shimizu, Yusei*; Haga, Yoshinori  ; Ikeda, Yoichi*; Yanagisawa, Tatsuya*; Amitsuka, Hiroshi*

Precise dc magnetization measurements were performed on a heavy fermion superconductor UBe$$_{13}$$. We observed a magnetic anomaly in the superconducting mixed state, implying an unusual superconducting state. The origin of the anomaly is discussed based on an unusual superconducting response or a peculiar normal-state magnetization at the vortex cores.



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Category:Physics, Multidisciplinary



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