期刊
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
卷 259, 期 4, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.202100503
关键词
metal-insulator transition; quantum continuum excitation; ruthenates; strongly correlated electrons systems
资金
- Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0014461]
- Department of Commerce
- National Science Center in Poland
Ruthenates provide a comprehensive research platform to study various novel properties, such as quantum magnetism, superconductivity, and magnetic fluctuation mediated metal-insulator transition (MIT). This overview focuses on the quantum mechanical phenomenology in calcium ruthenium oxide with different compositions.
Ruthenates provide a comprehensive platform to study a plethora of novel properties, such as quantum magnetism, superconductivity, and magnetic fluctuation mediated metal-insulator transition (MIT). Herein, an overview of quantum mechanical phenomenology in calcium ruthenium oxide with varying compositions is provided. While the stoichiometric composition of CaRuO3 exhibits non-fermi liquid (FL) behavior with quasi-criticality, chemically doped compounds depict prominent signatures of quantum magnetic fluctuations at low temperature that in some cases are argued to mediate in metal-insulator transition. In the case of cobalt-doped CaRuO3, an unusual continuum fluctuation is found to persist deep inside the glassy phase of the material. These observations reflect the richness of the ruthenate research platform in the study of quantum magnetic phenomena of fundamental importance.
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