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Magnetic quantum oscillations in the normal state of YNi2B2C

Ignatchik, O.; Coffey, T.; Hagel, J.; Jäckel, M.; Jobiliong, E.; Souptel, D.; Behr, G.; Wosnitza, J.


We present de Haas–van Alphen (dHvA) measurements of different YNi2B2C single crystals in magnetic fields up to 32 T. At high magnetic fields three different dHvA frequencies could be detected. The lowest frequency, Fα; could be well resolved down to lower fields just above the upper critical field. An unexpectedly sudden vanishing of the dHvA signal in the mixed state has been observed

Keywords: Rare earth–transition metal alloys; de Haas–van Alphen effect; Electronic structure; Superconductivity



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