Observation of multiple peaks in the magnetization curves of single crystals

M. Koblischka, A. van Dalen, T. Higuchi, K. Sawada, S. Yoo, M. Murakami

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Induced current densities (Formula presented) were measured in a wide temperature ((Formula presented) K) and field range ((Formula presented) T) on single crystals of (Formula presented) using a superconducting quantum interference device magnetometer. The samples exhibit the fishtail or peak effect at temperatures above 30 K. In a small temperature window between 50 and 74 K, three peaks are seen in the (Formula presented) curves. The temperature and field behavior of the induced current densities is analyzed using a model describing a magnetization curve as composed of two independent contributions at low and high fields. By means of this analysis, it is demonstrated that the third peak corresponds to the fishtail peak, whereas the position of the second peak is practically independent of temperature. It is shown that the appearance of the second peak is due to the large values of the position of the fishtail peak.

Original languageEnglish
Pages (from-to)R6893-R6896
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number10
Publication statusPublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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