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Competing interactions and magnetic frustration in Yb4LiGe4

CARRETTA, PIETRO;
2011-01-01
2011
The Physics category includes resources of a broad, general nature that contain materials from all areas of physics, The category also includes resources specifically concerned with the following physics sub-fields: mathematical physics, particle and nuclear physics, physics of fluids and plasmas, quantum physics, and theoretical physics.
PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS
sì
WOS:000297294400010
2-s2.0-82455217243
Sì, ma tipo non specificato
Inglese
Internazionale
STAMPA
84
174429
8
We have studied polycrystalline Yb4LiGe4, a ternary variant of the R5T4 family of layered compounds characterized by a very strong coupling between the magnetic and crystallographic degrees of freedom. The system is mixed valent, with nonmagnetic Yb2+ and magnetic Yb3+ present, and is characterized by coexisting ferromagnetic (FM) and antiferromagnetic (AFM) correlations. We present measurements of resistivity, AC-susceptibility, specific heat, and muon spin relaxation (μSR), below 1 K. The low temperature measurements suggest a transition to a mesoscopically inhomogeneous magnetically ordered state below 2 K characterized by fluctuations well below the ordering temperature. This unusual state is believed to result from the enhanced two-dimensionality produced by Li substitution and frustration effects inherent in the Yb-sublattice geometry.
9
info:eu-repo/semantics/article
262
S. M., Disseler; J. N., Svensson; S. C., Peter; C. P., Byers; C., Baines; A., Amato; S. R., Giblin; Carretta, Pietro; M. J., Graf1
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/456277
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