High-field $^{29}$ Si-NMR study of URuSi

Sakai, Hironori ; Tokunaga, Yo ; Kambe, Shinsaku ; Urbano, R. R.*; Kuhns, P. L.*; Reyes, A. P.*; Ronning, F.*; Bauer, E. D.*; Thompson, J. D.*

The heavy fermion superconductor URuSi with $T_{rm c}=1.7$ K shows the "hidden order" at $T_{rm O}=17.5$ K. Below 1 K, it shows a first-order-transition at $H_{rm c}sim 35$ T from the hidden order phase to the magnetically ordered phase. The - phase diagram for URuSi above 35 T is known to be complicated but the details in the each phase above 35 T are unknown. We have been investigating the electronic state by means of $^{29}$ Si-NMR in the higher field. The NMR experiment was done at National High Magnetic Field Laboratory (Tallahassee, FL, U.S.A.).

Language	:	Japanese
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Meeting title	:	日本物理学会2012年秋季大会(物性)
Held date	:	2012/09
Location (city)	:	横浜
Location (country)	:	日本
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Keywords	:	no keyword
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Registration No. : BB20121696
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High-field Si-NMR study of URuSi

High-field $^{29}$ Si-NMR study of URuSi