Magnetization, magnetic transition and magnetic entropy changes of bulk MnAs1-xSbx fabricated by underwater shock compaction

Youngkook Kim, Hirofumi Wada, Yeonwon Lee, Shigeru Itoh

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

MnAs1-xSbx (x = 0.068, 0.073) materials were fabricated by means of underwater shock compaction technique. A peak shock pressure of water acting on the powders was about 16 GPa. It was confirmed that underwater shock compaction leads to the compositional inhomogeneity, broad magnetic transition and lower magnetization and magnetic entropy changes of MnAs1-xSbx. However, these problems were improved by a post-annealing. Consequently, the post-annealed samples after the shock compaction exhibit the sharp magnetic transitions and high magnetic entropy changes of in a field of 1 T.

Original languageEnglish
Pages (from-to)114-118
Number of pages5
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume167
Issue number2
DOIs
Publication statusPublished - Mar 15 2010

Fingerprint

Magnetization
Compaction
Entropy
shock
entropy
magnetization
Powders
Annealing
inhomogeneity
Water
annealing
water

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "MnAs1-xSbx (x = 0.068, 0.073) materials were fabricated by means of underwater shock compaction technique. A peak shock pressure of water acting on the powders was about 16 GPa. It was confirmed that underwater shock compaction leads to the compositional inhomogeneity, broad magnetic transition and lower magnetization and magnetic entropy changes of MnAs1-xSbx. However, these problems were improved by a post-annealing. Consequently, the post-annealed samples after the shock compaction exhibit the sharp magnetic transitions and high magnetic entropy changes of in a field of 1 T.",
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T1 - Magnetization, magnetic transition and magnetic entropy changes of bulk MnAs1-xSbx fabricated by underwater shock compaction

AU - Kim, Youngkook

AU - Wada, Hirofumi

AU - Lee, Yeonwon

AU - Itoh, Shigeru

PY - 2010/3/15

Y1 - 2010/3/15

N2 - MnAs1-xSbx (x = 0.068, 0.073) materials were fabricated by means of underwater shock compaction technique. A peak shock pressure of water acting on the powders was about 16 GPa. It was confirmed that underwater shock compaction leads to the compositional inhomogeneity, broad magnetic transition and lower magnetization and magnetic entropy changes of MnAs1-xSbx. However, these problems were improved by a post-annealing. Consequently, the post-annealed samples after the shock compaction exhibit the sharp magnetic transitions and high magnetic entropy changes of in a field of 1 T.

AB - MnAs1-xSbx (x = 0.068, 0.073) materials were fabricated by means of underwater shock compaction technique. A peak shock pressure of water acting on the powders was about 16 GPa. It was confirmed that underwater shock compaction leads to the compositional inhomogeneity, broad magnetic transition and lower magnetization and magnetic entropy changes of MnAs1-xSbx. However, these problems were improved by a post-annealing. Consequently, the post-annealed samples after the shock compaction exhibit the sharp magnetic transitions and high magnetic entropy changes of in a field of 1 T.

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