Mixed Valency in Yb7Co4InGe12: A Novel Intermetallic Compound Stabilized in Liquid Indium
Source abstract
Abstract
The quaternary compounds RE 7 Co 4 InGe 12 (RE = Dy, Ho, Yb) were obtained from In flux reactions as thin silver needles. RE 7 Co 4 InGe 12 crystallizes in the tetragonal P4/m space group under a new structure type which is characterized by columnar units forming three different types of channels with the RE atoms situated within these channels. Investigation of the Yb analog with magnetic susceptibility measurements, X-ray photoelectron spectroscopy (XPS) and X-ray absorption near edge spectroscopy (XANES) revealed that Yb 7 Co 4 InGe 12 is a mixed-valence compound and that the relative Yb 3+ /Yb 2+ ratio is slightly temperature-dependent. Additionally, resistivity measurements for Yb 7 Co 4 InGe 12 exhibited negative magnetoresistance at low temperatures.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Rare-earth and actinide compounds · Magnetic Properties of Alloys · Iron-based superconductors research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, Advanced Photon Source and Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
References (36)
Show source-provided references
1. Kanatzidis M. G. · Angew. Chem., Int. Ed. · 2005 · 44 · 702310.1002/anie.200462170 ↗
2. Chen X. Z. · Chem. Mater. · 1998 · 10 · 3211
3. Sieve B. · J. Am. Chem. Soc. · 2001 · 123 · 704710.1021/ja010135k ↗
4. Sieve B. · Z. Anorg. Allg. Chem. · 2002 · 628 · 157410.1002/1521-3749(200207)628:7<1568::AID-ZAAC1568>3.0.CO;2-A ↗
5. Chen X. Z. · Chem. Mater. · 1999 · 11 · 83
6. Zhuravleva M. A. · Z. Naturforsch., Sect. B · 2003 · 58 · 657
7. Chen X. Z. · Chem. Mater. · 2000 · 12 · 2522
8. Zhuravleva M. A. · Inorg. Chem. · 2003 · 42 · 642410.1021/ic0341892 ↗
9. Zhuravleva M. A. · J. Am. Chem. Soc. · 2007 · 129 · 308310.1021/ja069195m ↗
10. Salvador J. R. · Inorg. Chem. · 2005 · 44 · 867910.1021/ic050941i ↗
11. Salvador J. R. · Inorg. Chem. · 2004 · 43 · 141010.1021/ic035303j ↗
12. Bailey M. S. · J. Solid State Chem. · 2005 · 178 · 349910.1016/j.jssc.2005.09.004 ↗
13. Benbow E. M. · J. Solid State Chem. · 2006 · 179 · 399610.1016/j.jssc.2006.09.001 ↗
14. Klunter W. · J. Solid State Chem. · 2006 · 179 · 288810.1016/j.jssc.2006.01.032 ↗
15. Lukachuk M. · J. Solid State Chem. · 2005 · 178 · 273310.1016/j.jssc.2005.06.021 ↗
16. Zaremba V. I. · J. Solid State Chem. · 2006 · 179 · 89710.1016/j.jssc.2005.12.022 ↗
17. Salvador J. R. · Inorg. Chem. · 2006 · 45 · 709910.1021/ic0605017 ↗
18. Lawrence J. M. · Rep. Prog. Phys. · 1981 · 44 · 8410.1088/0034-4885/44/1/001 ↗
19. Kindler B. · Phys. Rev. B · 1994 · 50 · 70710.1103/PhysRevB.50.704 ↗
20. Sheldrick G. M. SADABS · 1995
21. Sheldrick G. M. SHELXTL · 1995
22. Farrugia L. J. · 1997
23. Zaremba V. I. · Z. Kristallogr.−New Cryst. Struct. · 1997 · 212 · 29110.1524/ncrs.1997.212.1.291 ↗
24. Tobash P. H. · Chem. Mater. · 2005 · 17 · 557310.1021/cm051618g ↗
25. Katoh K. · Physica B · 2006 · 373 · 11910.1016/j.physb.2005.11.098 ↗
26. Mruz O. Y. · Ukr. Fiz. Zh. · 1987 · 32 · 1858
27. Welter R. · J. Alloys Compd. · 1993 · 201 · 19610.1016/0925-8388(93)90883-O ↗
28. Patil N. G. · Phys. Rev. B · 1999 · 59 · 958910.1103/PhysRevB.59.9581 ↗
29. Becker B. · Phys. Rev. B · 1999 · 59 · 726910.1103/PhysRevB.59.7266 ↗
30. Braun H. F. · Acta Crystallogr., Sect. B · 1980 · 36 · 2399
31. Chung J. S. · J. Phys. Rev. B · 1990 · 41 · 552810.1103/PhysRevB.41.5524 ↗
32. Szytula A. · J. Alloys Compd. · 2003 · 360 · 4610.1016/S0925-8388(03)00344-X ↗
33. Rao C. N. R. · Chem. Phys. Lett. · 1980 · 76 · 415
34. Hatwar T. K. · Solid State Commun. · 1980 · 34 · 62010.1016/0038-1098(80)90939-4 ↗
35. Moreschini L. · Phys. Rev. B · 2007 · 7510.1103/PhysRevB.75.035113 ↗
36. Bauer E. · Phys. Rev. B · 1995 · 52 · 433510.1103/PhysRevB.52.4327 ↗