Spin-liquid-like state in a spin-1/2 square-lattice antiferromagnet perovskite induced by d 10–d 0 cation mixing
| العنوان: | Spin-liquid-like state in a spin-1/2 square-lattice antiferromagnet perovskite induced by d 10–d 0 cation mixing |
|---|---|
| المؤلفون: | Elisa Baggio-Saitovitch, K. P. Schmidt, Helen Walker, Maarit Karppinen, F. J. Litterst, C. Baines, Sami Vasala, Ichiro Terasaki, Otto Mustonen, E. Sadrollahi |
| المساهمون: | Department of Chemistry and Materials Science, Centro Brasileiro de Pesquisas Físicas, Technical University of Braunschweig, Paul Scherrer Institute, Rutherford Appleton Laboratory, Department of Applied Physics, Aalto-yliopisto, Aalto University |
| المصدر: | Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018) Nature Communications |
| بيانات النشر: | Nature Portfolio, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Materials science, Magnetism, Science, General Physics and Astronomy, FOS: Physical sciences, 02 engineering and technology, 01 natural sciences, General Biochemistry, Genetics and Molecular Biology, Article, Condensed Matter - Strongly Correlated Electrons, 0103 physical sciences, Antiferromagnetism, 010306 general physics, Spin (physics), lcsh:Science, Mixing (physics), Perovskite (structure), Condensed Matter - Materials Science, Multidisciplinary, Condensed matter physics, Strongly Correlated Electrons (cond-mat.str-el), Materials Science (cond-mat.mtrl-sci), General Chemistry, Muon spin spectroscopy, 021001 nanoscience & nanotechnology, Square lattice, lcsh:Q, Condensed Matter::Strongly Correlated Electrons, Quantum spin liquid, 0210 nano-technology |
| الوصف: | A quantum spin liquid state has long been predicted to arise in spin-1/2 Heisenberg square-lattice antiferromagnets at the boundary region between N\'eel (nearest-neighbor interaction dominates) and columnar (next-nearest-neighbor dominates) antiferromagnetic order. However, there are no known compounds in this region. Here we use $d^{10}$-$d^0$ cation mixing to tune the magnetic interactions on the square lattice while simultaneously introducing disorder. We find spin-liquid-like behavior in the double perovskite Sr$_2$Cu(Te$_{0.5}$W$_{0.5}$)O$_6$, where the isostructural end phases Sr$_2$CuTeO$_6$ and Sr$_2$CuWO$_6$ are N\'eel and columnar type antiferromagnets, respectively. We show that magnetism in Sr$_2$Cu(Te$_{0.5}$W$_{0.5}$)O$_6$ is entirely dynamic down to 19 mK. Additionally, we observe at low temperatures for Sr$_2$Cu(Te$_{0.5}$W$_{0.5}$)O$_6$, similar to several spin liquid candidates, a plateau in muon spin relaxation rate and a strong $T$-linear dependence in specific heat. Our observations for Sr$_2$Cu(Te$_{0.5}$W$_{0.5}$)O$_6$ highlight the role of disorder in addition to magnetic frustration in spin liquid physics. Comment: 19+4 pages, 4+3 figures. Accepted for publication in Nature Communications |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2041-1723 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e185085f7ae9cfdfefeff7ce370e3c44 https://doaj.org/article/e7b367119d544894b1ac876daed47caa |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....e185085f7ae9cfdfefeff7ce370e3c44 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20411723 |
|---|