Single Crystals of Cubic Rare-Earth Pyrochlore Germanates: RE2Ge2O7 (RE = Yb and Lu) Grown by a High-Temperature Hydrothermal Technique | Zendy

Liurukara D. Sanjeewa | Zendy; Kate A. Ross | Zendy; Colin L. Sarkis | Zendy; Harikrishnan S. Nair | Zendy; Colin D. McMillen | Zendy; Joseph W. Kolis | Zendy

Open Access

Single Crystals of Cubic Rare-Earth Pyrochlore Germanates: RE₂Ge₂O₇ (RE = Yb and Lu) Grown by a High-Temperature Hydrothermal Technique

Author(s) -

Liurukara D. Sanjeewa,

Kate A. Ross,

Colin L. Sarkis,

Harikrishnan S. Nair,

Colin D. McMillen,

Joseph W. Kolis

Publication year - 2018

Publication title -

inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 233

eISSN - 1520-510X

pISSN - 0020-1669

DOI - 10.1021/acs.inorgchem.8b01810

Subject(s) - pyrochlore , hydrothermal circulation , chemistry , crystallography , frustration , neutron diffraction , phase (matter) , single crystal , cubic crystal system , geometrical frustration , crystal structure , mineralogy , condensed matter physics , geology , physics , organic chemistry , seismology

Large single crystals of Yb 2 Ge 2 O 7 in the cubic Fd3̅ m space group, are synthesized and characterized from a high-temperature hydrothermal method (650°C/200 MPa in 1 M KF). The cubic phase displays spin frustration and possibly nonclassical quantum-spin behavior at low temperature. This is the first report of single crystals of this important phase of size and quality suitable for single-crystal neutron diffraction.

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