Novel magnetic phase transitions and magnetoresistance of GdMn2Ge2

Hirofumi Wada, Hironori Yoshioka, Tsuneaki Goto

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9 Citations (Scopus)

Abstract

The magnetization and magnetoresistance (MR) were measured for GdMn2Ge2, which shows a first-order transition from a low-temperature ferrimagnetic (Fi) state to a high-temperature antiferromagnetic (AF) state at T1 = 95 K. The field-induced transition from the Fi state to the high-field state was observed below T1. The transition field decreases with increasing temperature and it falls to zero at T1 for H ⊥ c, while the transition disappears above 90 K for H ∥ c. A large positive MR jump was observed associated with the fieldinduced transition for H ⊥ c. These results suggest that this may be the transition from the Fi to AF state caused by a magnetic field.

Original languageEnglish
Pages (from-to)L687-L693
JournalJournal of Physics Condensed Matter
Volume14
Issue number41
DOIs
Publication statusPublished - Oct 21 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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