Relation between $c$-$f$ hybridization and magnetic ordering in CeRu$_2$Al$_{10}$: An optical conductivity study of Ce(Ru$_{1-x}$Rh$_x$)$_2$Al$_{10}$ ($x\leq0.05$)

Autor: Kimura, Shin-ichi, Tanida, Hiroshi, Sera, Masafumi, Muro, Yuji, Takabatake, Toshiro, Nishioka, Takashi, Matsumura, Masahiro, Kobayashi, Riki

Publikováno v: Phys. Rev. B 91, 241120(R) (2015)

A Kondo semiconductor CeRu$_2$Al$_{10}$ with an orthorhombic crystal structure shows an unusual antiferromagnetic ordering at rather high temperature $T_0$ of 27.3 K, which is lower than the Kondo temperature $T_{\rm K}\sim$ 60 K. In optical conducti

Externí odkaz: http://arxiv.org/abs/1506.04494

Magnetic instability induced by Rh-doping in Kondo semiconductor CeRu$_2$Al$_{10}$

Autor: Guo, Hanjie, Tanida, Hiroshi, Kobayashi, Riki, Kawasaki, Ikuto, Sera, Masafumi, Nishioka, Takashi, Matsumura, Masahiro, Watanabe, Isao, Xu, Zhu-an

Publikováno v: Phys. Rev. B 88, 115206 (2013)

Magnetic ground state of Rh-doped Kondo semiconductor CeRu$_2$Al$_{10}$ [Ce(Ru$_{1-x}$Rh$_x$)$_2$Al$_{10}$] is investigated by muon-spin relaxation method. Muon-spin precession with two frequencies is observed in the $x$ = 0 sample, while only one fr

Externí odkaz: http://arxiv.org/abs/1308.3285

Neutron scattering study of the long-range ordered state in CeRu2Al10

Autor: Mignot, Jean-Michel, Robert, Julien, André, Gilles, Bataille, Alexandre M., Nishioka, Takashi, Kobayashi, Riki, Matsumura, Masahiro, Tanida, Hiroshi, Tanaka, Daiki, Sera, Masafumi

Elastic and inelastic neutron scattering measurements have been performed on powder and single-crystal samples of orthorhombic CeRu2Al10. The order forming below T0 = 27 K was identified as a long-range antiferromagnetic state with the wave vector k

Externí odkaz: http://arxiv.org/abs/1010.5085

Anisotropic Transport Properties of CeRu$_2$Al$_{10}$

Autor: Tanida, Hiroshi, Tanaka, Daiki, Sera, Masafumi, Moriyoshi, Chikako, Kuroiwa, Yoshihiro, Takesaka, Tomoaki, Nishioka, Takashi, Kato, Harukazu, Matsumura, Masahiro

We studied the transport properties of CeRu_2Al_10 single crystals. All the transport properties show largely anisotropic behaviors below T_0. Those along the a- and c-axes show similar behaviors, but are different from those along the b-axis. This s

Externí odkaz: http://arxiv.org/abs/1005.4536

Long-range order and low-energy magnetic excitations in CeRu2Al10

Autor: Robert, Julien, Mignot, Jean-Michel, André, Gilles, Nishioka, Takashi, Kobayashi, Riki, Matsumura, Masahiro, Tanida, Hiroshi, Tanaka, Daiki, Sera, Masafumi

Publikováno v: Julien Robert, Jean-Michel Mignot, Gilles Andre, Takashi Nishioka, Riki Kobayashi, Masahiro Matsumura, Hiroshi Tanida, Daiki Tanaka, and Masafumi Sera, Phys. Rev. B, Rapid Commun. 82, 100404 (2010) - Published September 7, 2010

The nature of the unconventional ordered phase occurring in CeRu2Al10 below T0 = 27 K was investigated by neutron scattering. Powder diffraction patterns show clear superstructure peaks corresponding to forbidden (h + k)-odd reflections of the Cmcm s

Externí odkaz: http://arxiv.org/abs/1003.4933