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Small Moment, Itinerant Ferromagnetism Discovered in Single Crystalline La<sub>5</sub>Co<sub>2</sub>Ge<sub>3</sub>

ORAL

Abstract

Single crystals of monoclinic La5Co2Ge3 were grown using a self-flux method and were characterized by room-temperature powder X-ray diffraction, anisotropic temperature and field dependent magnetization, temperature dependent resistivity, specific heat, and muon spin resonance. La5Co2Ge3 has a Curie temperature (TC) of ∼3.8 K, as well as a clear loss of spin disorder scattering in resistivity data and a sharp specific heat anomaly. The magnetism associated with La5Co2Ge3 has μeff = 0.92 μB per mol-Co, μsat = 0.11 μB per mol-Co, and a change in the entropy at TC of ∼0.05 R ln2 per mol-Co making it a rare, itinerant, low TC compound.

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Presenters

  • Scott Saunders

    Iowa State University

Authors

  • Scott Saunders

    Iowa State University

  • Li Xiang

    Ames Laboratory and Iowa State University, Iowa State University, Ames Laboratory, Iowa State University

  • Rustem Khasanov

    Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute, Switzerland, Paul Scherrer Institut

  • Tai Kong

    Chemistry, Pinceton University, Princeton University

  • Qisheng Lin

    Iowa State University

  • Sergey L. Bud'ko

    Iowa State University, Ames Laboratory and Iowa State University, Ames Lab, Ames laboratory, Ames, IA, Department of Physics & Astronomy, Iowa State University/Ames Laboratory, Ames Laboratory, Department of Physics and Astronomy, Iowa State University/Ames Laboratory, Iowa State University and Ames Laboratory, Iowa State University, Ames Laboratory, Division of Materials Sciences & Engineering, Ames Lab and Iowa State University, Iowa State University/Ames Laboratory

  • Paul C Canfield

    Iowa State University, Ames Laboratory and Iowa State University, Ames Lab, Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA, Ames laboratory, Ames, IA, Ames Laboratory, Iowa State University, Department of Physics & Astronomy, Iowa State University/Ames Laboratory, Department of Physics and Astronomy, Iowa State University/Ames Laboratory, Iowa State University and Ames Laboratory, Iowa State University, Ames Laboratory, Department of Physics and Astronomy, Iowa State University, Division of Materials Sciences & Engineering, Ames Lab and Iowa State University, Department of Physics and Astronomy, Ames Laboratory/Iowa State Univeristy, Iowa State University/Ames Laboratory