Your browser doesn't support javascript.
loading
Emergent antiferromagnetism out of the "hidden-order" state in URu2Si2: high magnetic field nuclear magnetic resonance to 40 T.
Sakai, H; Tokunaga, Y; Kambe, S; Urbano, R R; Suzuki, M-T; Kuhns, P L; Reyes, A P; Tobash, P H; Ronning, F; Bauer, E D; Thompson, J D.
Afiliação
  • Sakai H; Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan.
  • Tokunaga Y; Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan.
  • Kambe S; Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan.
  • Urbano RR; Instituto de Física "Gleb Wataghin", Universidade Estadual de Campinas, 13083-859 Campinas, SP, Brazil and National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA.
  • Suzuki MT; CCSE, Japan Atomic Energy Agency, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8587, Japan.
  • Kuhns PL; National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA.
  • Reyes AP; National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA.
  • Tobash PH; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Ronning F; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Bauer ED; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Thompson JD; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Phys Rev Lett ; 112(23): 236401, 2014 Jun 13.
Article em En | MEDLINE | ID: mdl-24972218
ABSTRACT
Very high field (29)Si-NMR measurements using a fully (29)Si-enriched URu(2)Si(2) single crystal were carried out in order to microscopically investigate the "hidden order" (HO) state and adjacent magnetic phases in the high field limit. At the lowest measured temperature of 0.4 K, a clear anomaly reflecting a Fermi surface instability near 22 T inside the HO state is detected by the (29)Si shift, (29)K(c). Moreover, a strong enhancement of (29)K(c) develops near a critical field H(c) ≃ 35.6 T, and the ^{29}Si-NMR signal disappears suddenly at H(c), indicating the total suppression of the HO state. Nevertheless, a weak and shifted (29)Si-NMR signal reappears for fields higher than H(c) at 4.2 K, providing evidence for a magnetic structure within the magnetic phase caused by the Ising-type anisotropy of the uranium ordered moments.
Buscar no Google
Imprimir
XML
PubMed Links

Base de dados: MEDLINE Idioma: En Ano de publicação: 2014 Tipo de documento: Article
Buscar no Google
Imprimir
XML
PubMed Links

Base de dados: MEDLINE Idioma: En Ano de publicação: 2014 Tipo de documento: Article