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Report No.

$$^{33}$$S-NMR study in $$beta$$-US$$_2$$

Sakai, Hironori   ; Hattori, Taisuke; Higa, Nonoka; Tokunaga, Yo  ; Tateiwa, Naoyuki   ; Yamamoto, Etsuji  ; Haga, Yoshinori  ; Kambe, Shinsaku  ; Reyes, A. P.*; Bauer, E. D.*; Ronning, F.*; Thompson, J. D.*

$$beta$$-US$$_2$$ is a paramagnetic narrow-gap semiconductor with the energy band gap of 90 K. A characteristic feature of $$beta$$-US$$_2$$ is the strong response of the electrical resistivity to magnetic field. On the other hand, ferromagnetism is easily induced by pressure of about 1 GPa. Consequently, it is considered to be close to a ferromagnetic instability. To elucidate microscopically this very sensitive electronic states to external fields, $$^{33}$$S-NMR study has been performed. We will show our recent $$^{33}$$S-NMR results and discuss the electronic states.



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