Study on anomalous Hall resistivity of Nd 2Mo 2-xTi xO 7

Taketomo Kageyama, Satoshi Iikubo, Shunsuke Yoshii, Yasuyuki Kondo, Masatoshi Sato, Yasuhiro Iye

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23 Citations (Scopus)

Abstract

Hall resistivity ρ H has been studied for single crystals of Nd 2Mo 2O 7, which has the ferromagnetic and chiral ordered state. Effects of Ti-doping on ρ H have also been studied down to 3 K under the magnetic field (H) up to 7 T. The T- and H-regions of the measurements have been extended for non-doped samples to 50 mK and 15 T. respectively. From the results, it has been confirmed that two components of the anomalous Hall resistivity exist. One is proportional to the net magnetization of Mo atoms, M Mo. It changes its sign with the doping. The other is proportional to the net magnetization of Nd atoms, M Nd and does not exhibit the sign change. The Hall resistivity has a finite and almost T-independent value at very low temperatures. These results on the behavior of ρH are discussed by considering the existing theories including the one recently proposed by a mechanism related to the spin chiral order.

Original languageEnglish
Pages (from-to)3006-3010
Number of pages5
Journaljournal of the physical society of japan
Volume70
Issue number10
DOIs
Publication statusPublished - 2001 Oct

Keywords

  • Anomalous Hall resistivity
  • Pyrochlore molybdate
  • Spin chirality

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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