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Title: Flux Crystal Growth of the RE 2Ru 3Ge 5 ( RE = La, Ce, Nd, Gd, Tb) Series and Their Magnetic and Metamagnetic Transitions

Previously synthesized only as powders, single crystals of the RE 2Ru 3Ge 5 (RE = La, Ce, Nd, Gd, Tb) series of compounds have been now been obtained from molten In. We report that these materials crystallize with the U 2Co 3Si 5-type structure in orthorhombic space group Ibam with lattice parameters a ~ 10.00-9.77 Å (La-Tb), b ~ 12.51-12.35 Å, and c ~ 5.92-5.72 Å. The structure is a three-dimensional framework consisting of RuGe 5 and RuGe 6 units, as well as Ge-Ge zigzag chains. This structure type, along with the other five (Sc 2Fe 3Si 5, Lu 2Co 3Si 5, Y 2Rh 3Sn 5, Yb 2Ir 3Ge 5, and Yb 2Pt 3Sn 5) to compose the RE 2T 3X 5 phase space, are discussed in depth. For the three compounds with RE = Nd, Gd, and Tb, multiple magnetic transitions and metamagnetic behavior are observed. Lastly, electronic band structure calculations performed on La 2Ru 3Ge 5 indicate that these materials have a negative band gap and are semimetallic in nature.
Authors:
ORCiD logo [1] ;  [2] ;  [3] ;  [4] ;  [5] ; ORCiD logo [6]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division ; Northwestern Univ., Evanston, IL (United States). Department of Chemistry
  3. Iowa State Univ., Ames, IA (United States). Department of Physics and Astronomy; Ames Lab., Ames, IA (United States). Division of Materials Science & Engineering
  4. Northwestern Univ., Evanston, IL (United States). Department of Chemistry
  5. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  6. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division ; Northwestern Univ., Evanston, IL (United States). Department of Chemistry
Publication Date:
Grant/Contract Number:
AC02-06CH11357; AC02-07CH11358
Type:
Accepted Manuscript
Journal Name:
Inorganic Chemistry
Additional Journal Information:
Journal Volume: 56; Journal Issue: 23; Journal ID: ISSN 0020-1669
Publisher:
American Chemical Society (ACS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE
OSTI Identifier:
1418275

Bugaris, Daniel E., Malliakas, Christos D., Bud?ko, Sergey L., Calta, Nicholas P., Chung, Duck Young, and Kanatzidis, Mercouri G.. Flux Crystal Growth of the RE2Ru3Ge5 (RE = La, Ce, Nd, Gd, Tb) Series and Their Magnetic and Metamagnetic Transitions. United States: N. p., Web. doi:10.1021/acs.inorgchem.7b02389.
Bugaris, Daniel E., Malliakas, Christos D., Bud?ko, Sergey L., Calta, Nicholas P., Chung, Duck Young, & Kanatzidis, Mercouri G.. Flux Crystal Growth of the RE2Ru3Ge5 (RE = La, Ce, Nd, Gd, Tb) Series and Their Magnetic and Metamagnetic Transitions. United States. doi:10.1021/acs.inorgchem.7b02389.
Bugaris, Daniel E., Malliakas, Christos D., Bud?ko, Sergey L., Calta, Nicholas P., Chung, Duck Young, and Kanatzidis, Mercouri G.. 2017. "Flux Crystal Growth of the RE2Ru3Ge5 (RE = La, Ce, Nd, Gd, Tb) Series and Their Magnetic and Metamagnetic Transitions". United States. doi:10.1021/acs.inorgchem.7b02389. https://www.osti.gov/servlets/purl/1418275.
@article{osti_1418275,
title = {Flux Crystal Growth of the RE2Ru3Ge5 (RE = La, Ce, Nd, Gd, Tb) Series and Their Magnetic and Metamagnetic Transitions},
author = {Bugaris, Daniel E. and Malliakas, Christos D. and Bud?ko, Sergey L. and Calta, Nicholas P. and Chung, Duck Young and Kanatzidis, Mercouri G.},
abstractNote = {Previously synthesized only as powders, single crystals of the RE2Ru3Ge5 (RE = La, Ce, Nd, Gd, Tb) series of compounds have been now been obtained from molten In. We report that these materials crystallize with the U2Co3Si5-type structure in orthorhombic space group Ibam with lattice parameters a ~ 10.00-9.77 Å (La-Tb), b ~ 12.51-12.35 Å, and c ~ 5.92-5.72 Å. The structure is a three-dimensional framework consisting of RuGe5 and RuGe6 units, as well as Ge-Ge zigzag chains. This structure type, along with the other five (Sc2Fe3Si5, Lu2Co3Si5, Y2Rh3Sn5, Yb2Ir3Ge5, and Yb2Pt3Sn5) to compose the RE2T3X5 phase space, are discussed in depth. For the three compounds with RE = Nd, Gd, and Tb, multiple magnetic transitions and metamagnetic behavior are observed. Lastly, electronic band structure calculations performed on La2Ru3Ge5 indicate that these materials have a negative band gap and are semimetallic in nature.},
doi = {10.1021/acs.inorgchem.7b02389},
journal = {Inorganic Chemistry},
number = 23,
volume = 56,
place = {United States},
year = {2017},
month = {11}
}