Frustrated antiferromagnetic honeycomb-tunnel-like latticeCuR2Ge2O8(R=Pr, Nd, Sm, and Eu)
| Autor: | Nahyun Lee, Hasung Sim, Marie Kratochvilova, Hwanbeom Cho, Je-Geun Park |
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| Rok vydání: | 2017 |
| Předmět: |
Diffraction
Physics Condensed matter physics Geometrical frustration 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Heat capacity Behavioral traits Lattice (order) 0103 physical sciences Antiferromagnetism Condensed Matter::Strongly Correlated Electrons 010306 general physics 0210 nano-technology |
| Zdroj: | Physical Review B. 96 |
| ISSN: | 2469-9969 2469-9950 |
| DOI: | 10.1103/physrevb.96.224427 |
| Popis: | New frustrated antiferromagnetic compounds $\mathrm{Cu}{R}_{2}{\mathrm{Ge}}_{2}{\mathrm{O}}_{8}$ ($R=\mathrm{Pr}$, Nd, Sm, Eu) have been investigated using high-resolution x-ray diffraction, magnetic, and heat capacity measurements. These systems show different magnetic lattices depending on rare-earth element. The nonmagnetic Eu compound is a $S=1/2$ two-dimensional triangular antiferromagnetic lattice oriented in the $ac$ plane with geometrical frustration. On the other hand, the Pr, Nd, and Sm compounds show a three-dimensional honeycomb-tunnel-like lattice made of ${R}^{3+}$ running along the $a$ axis with the characteristic behavior of frustrated antiferromagnets. |
| Databáze: | OpenAIRE |
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