Pressure evolution of the metamagnetic transition in UCoAl As measured using 59 Co NMR

Hisashi Kotegawa, Hiroki Nohara, Hideki Tou, Tatsuma D. Matsuda, Etsuji Yamamoto, Yoshinori Haga, Zachary Fisk, Yoshichika Ōnuki, Dai Aoki, Jacques Flouquet

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1 Citation (Scopus)

Abstract

We have performed NMR measurements under pressure in UCoAl with a quantum critical endpoint of the metamagnetic transition from the paramagnetic phase to the ferromagnetic (FM) phase. 59 Co-NMR sensitively detects the evolution of the internal field caused by applying the external field. The metamagnetic field H m increases with increasing pressure consistently with other experimental methods, accompanied by the suppression of the magnetization in the field-induced FM phase and the magnetization jump at H m . The loss of the NMR signal on approaching the QCEP indicates the development of the spin fluctuations.

Original languageEnglish
Pages (from-to)341-344
Number of pages4
JournalJournal of the Korean Physical Society
Volume63
Issue number3
DOIs
Publication statusPublished - 2013 Aug

Keywords

  • NMR
  • Quantum Critical Endpoint
  • UCoAl

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Kotegawa, H., Nohara, H., Tou, H., Matsuda, T. D., Yamamoto, E., Haga, Y., Fisk, Z., Ōnuki, Y., Aoki, D., & Flouquet, J. (2013). Pressure evolution of the metamagnetic transition in UCoAl As measured using 59 Co NMR Journal of the Korean Physical Society, 63(3), 341-344. https://doi.org/10.3938/jkps.63.341