Refine your search:     
Report No.
 - 
Search Results: Records 1-3 displayed on this page of 3
  • 1

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Spin-orbital short-range order on a honeycomb-based lattice

Nakatsuji, Satoru*; Kuga, Kentaro*; Kimura, Kenta*; Satake, Ryuta*; Katayama, Naoyuki*; Nishibori, Eiji*; Sawa, Hiroshi*; Ishii, Rieko*; Hagiwara, Masayuki*; Bridges, F.*; et al.

Science, 336(6081), p.559 - 563, 2012/05

 Times Cited Count:108 Percentile:95.76(Multidisciplinary Sciences)

Frustrated magnetic materials can remain disordered to the lowest temperatures. Such is the case for Ba$$_3$$CuSb$$_2$$O$$_9$$, which is magnetically anisotropic at the atomic scale but curiously isotropic on mesoscopic length and time scales. We find that the frustration on the triangular lattice is imprinted in a nanostructured honeycomb lattice of Cu$$^{2+}$$ ions that resists a coherent static Jahn-Teller distortion. The resulting two-dimensional random-bond spin-1/2 system on the honeycomb lattice has a broad spectrum of spin-dimer like excitations and low-energy spin degrees of freedom that retain.

Journal Articles

Investigation of bulk superconductivity in PrPt$$_5$$

Ito, Takashi; Nishida, Nobuhiko*; Oishi, Kazuki; Higemoto, Wataru; Karaki, Yoshitomo*; Ishimoto, Hidehiko*

Journal of the Physical Society of Japan, 75(Suppl.), p.189 - 191, 2006/08

no abstracts in English

Oral presentation

Hyperfine-enhanced nuclear magnetism in $$^{141}$$Pr-based compounds observed by muon spin relaxation

Ito, Takashi; Higemoto, Wataru; Oishi, Kazuki; Nishida, Nobuhiko*; Karaki, Yoshitomo*; Ishimoto, Hidehiko*

no journal, , 

Several novel phenomena about higher order multipoles have recently been found in $$^{141}$$Pr-based compounds with a nonmagnetic crystalline-electric-field (CEF) ground state. Previous $$mu$$SR studies in such compounds reported an anomalous muon spin relaxation at low temperatures in spite of the CEF ground state with the nonmagnetic nature, and a hyperfine-enhanced nuclear magnetism was discussed as the origin. A Van-Vleck paramagnet PrPt$$_5$$ is a typical system of the enhanced nuclear magnetism, which exhibits a ferromagnetic nuclear ordering at $$T_c$$=1.7 mK. This compound has been well characterized and is an ideal system to clarify a relation between the enhanced nuclear magnetism and the anomalous muon spin relaxation in $$^{141}$$Pr-based compounds. We performed $$mu$$SR measurements down to 50 mK. An internal field observed at the muon site is much larger in magnitude than ones due to bare nuclear dipole moments, suggesting an induction of 4$$f$$ magnetic moments. A fluctuation rate $$nu$$ of the field was estimated in the order of a few MHz and the value for $$nu$$ is consistent with one estimated from $$T_c$$. Our observations demonstrate that the $$mu$$SR is an ideal tool to investigate the dynamics of the hyperfine-enhanced nuclear spins in $$f$$ electron systems.

3 (Records 1-3 displayed on this page)
  • 1