Influence of Electron Doping on Magnetic Order in CeRu2Al10

Kobayashi, Riki; Kaneko, Koji; Saito, Kotaro; Mignot, Jean-Michel; André, Gilles; Robert, Julien; Wakimoto, Shuichi; Matsuda, Masaaki; Chi, Songxue; Haga, Yoshinori; Matsuda, Tatsuma D.; Yamamoto, Etsuji; Nishioka, Takashi; Matsumura, Masahiro; Tanida, Hiroshi; Sera, Masafumi

doi:10.7566/JPSJ.83.104707

Title: Influence of Electron Doping on Magnetic Order in CeRu₂Al₁₀

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Abstract

The effect of electron doping by the substitution of Rh for Ru on unconventional magnetic order in CeRu₂Al₁₀ was investigated via neutron powder diffraction. In Ce(Ru_1-xRh_x)₂Al₁₀ with x = 0.05, 0.12, and 0.2, reorientation of the ordered moment from the c- to the a-axis takes place in all samples, while the ordering vector q=(0 1 0) remains unchanged within this concentration range. The moment reorientation is accompanied by an enhancement in its size by a factor of ~2.4, from μ=0.43 μ_B at x=0 to μ =1.06, 1.04, and 1.02 μ_B for x=0.05, 0.12 and 0.2, respectively. The continuous decrease in N´eel temperature T₀(T_N), despite an abrupt increase in μ , underlines the strong anisotropy in the exchange interaction in CeRu₂Al₁₀, and the fact that this anisotropy is easily suppressed by electron doping.

Authors:

Kobayashi, Riki ^[1]; Kaneko, Koji ^[1]; Saito, Kotaro ^[2]; Mignot, Jean-Michel ^[3]; André, Gilles ^[3]; Robert, Julien ^[3]; Wakimoto, Shuichi ^[1]; Matsuda, Masaaki ^[4]; Chi, Songxue ^[4]; Haga, Yoshinori ^[5]; Matsuda, Tatsuma D. ^[5]; Yamamoto, Etsuji ^[5]; Nishioka, Takashi ^[6]; Matsumura, Masahiro ^[6]; Tanida, Hiroshi ^[7]; Sera, Masafumi ^[7]

Japan Atomic Energy Agency (JAEA), Tokai (Japan)
Alternative Energies and Atomic Energy Commission (CEA), Saclay (France). Laboratoire Leon Brillouin; Tohoku Univ., Sendai (Japan). Dept. of Physics
Alternative Energies and Atomic Energy Commission (CEA), Saclay (France). Laboratoire Leon Brillouin
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division
Japan Atomic Energy Agency (JAEA), Tokai (Japan). Advanced Science Research Center
Kochi University, Kochi (Japan). Graduate School of Integrated Arts and Sciences
Hiroshima Univ., Higashi-Hiroshima (Japan). Department of Quantum Matter

Publication Date:: Wed Sep 17 00:00:00 EDT 2014

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1159438

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Journal of the Physical Society of Japan

Additional Journal Information:: Journal Volume: 83; Journal Issue: 10; Journal ID: ISSN 0031-9015

Publisher:: Physical Society of Japan

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Kobayashi, Riki, Kaneko, Koji, Saito, Kotaro, Mignot, Jean-Michel, André, Gilles, Robert, Julien, Wakimoto, Shuichi, Matsuda, Masaaki, Chi, Songxue, Haga, Yoshinori, Matsuda, Tatsuma D., Yamamoto, Etsuji, Nishioka, Takashi, Matsumura, Masahiro, Tanida, Hiroshi, and Sera, Masafumi. Influence of Electron Doping on Magnetic Order in CeRu2Al10.  United States: N. p., 2014. 
Web.  doi:10.7566/JPSJ.83.104707.

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                    Kobayashi, Riki, Kaneko, Koji, Saito, Kotaro, Mignot, Jean-Michel, André, Gilles, Robert, Julien, Wakimoto, Shuichi, Matsuda, Masaaki, Chi, Songxue, Haga, Yoshinori, Matsuda, Tatsuma D., Yamamoto, Etsuji, Nishioka, Takashi, Matsumura, Masahiro, Tanida, Hiroshi, & Sera, Masafumi. Influence of Electron Doping on Magnetic Order in CeRu2Al10.  United States.  https://doi.org/10.7566/JPSJ.83.104707

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                    Kobayashi, Riki, Kaneko, Koji, Saito, Kotaro, Mignot, Jean-Michel, André, Gilles, Robert, Julien, Wakimoto, Shuichi, Matsuda, Masaaki, Chi, Songxue, Haga, Yoshinori, Matsuda, Tatsuma D., Yamamoto, Etsuji, Nishioka, Takashi, Matsumura, Masahiro, Tanida, Hiroshi, and Sera, Masafumi. Wed .  
"Influence of Electron Doping on Magnetic Order in CeRu2Al10".  United States.  https://doi.org/10.7566/JPSJ.83.104707.  https://www.osti.gov/servlets/purl/1159438.

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@article{osti_1159438,

  title        = {Influence of Electron Doping on Magnetic Order in CeRu2Al10},

  author       = {Kobayashi, Riki and Kaneko, Koji and Saito, Kotaro and Mignot, Jean-Michel and André, Gilles and Robert, Julien and Wakimoto, Shuichi and Matsuda, Masaaki and Chi, Songxue and Haga, Yoshinori and Matsuda, Tatsuma D. and Yamamoto, Etsuji and Nishioka, Takashi and Matsumura, Masahiro and Tanida, Hiroshi and Sera, Masafumi},

  abstractNote = {The effect of electron doping by the substitution of Rh for Ru on unconventional magnetic order in CeRu2Al10 was investigated via neutron powder diffraction. In Ce(Ru1-xRhx)2Al10 with x = 0.05, 0.12, and 0.2, reorientation of the ordered moment from the c- to the a-axis takes place in all samples, while the ordering vector q=(0 1 0) remains unchanged within this concentration range. The moment reorientation is accompanied by an enhancement in its size by a factor of ~2.4, from μ=0.43 μB at x=0 to μ =1.06, 1.04, and 1.02 μB for x=0.05, 0.12 and 0.2, respectively. The continuous decrease in N´eel temperature T0(TN), despite an abrupt increase in μ , underlines the strong anisotropy in the exchange interaction in CeRu2Al10, and the fact that this anisotropy is easily suppressed by electron doping.},

  doi          = {10.7566/JPSJ.83.104707},

  journal      = {Journal of the Physical Society of Japan},

  number       = 10,

  volume       = 83,

  place        = {United States},

  year         = {Wed Sep 17 00:00:00 EDT 2014},

  month        = {Wed Sep 17 00:00:00 EDT 2014}

}

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Title: Influence of Electron Doping on Magnetic Order in CeRu2Al10

Abstract

Citation Formats

Title: Influence of Electron Doping on Magnetic Order in CeRu₂Al₁₀