Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping
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2018
Authors
Bradarić, IvicaMatić, Vladimir M.
Savić, Ilija
Rakočević, Zlatko Lj.
Popović, Maja
Destraz, Daniel
Keller, Hugo
Article (Published version)
,
© 2018 American Physical Society
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Calcium ruthenate (CaRuO3) is widely believed to be located close to a quantum critical point due to the strong non-Fermi-liquid behavior expressed in the temperature dependence of electronic transport, specific heat, optical conductivity, etc. However, the corresponding anomalous behavior, marking crossover temperature regimes in the magnetic response of CaRuO3, is still lacking. Here we report detailed AC and DC magnetic susceptibility measurements of CaRuO3 and CaR u0.97 Ti 0.03 O3. The AC magnetic susceptibility measurements of CaRuO3 show a slight dependence on the frequency of AC magnetic field below ∼40K, and an additional subtle change of curvature around 12 K. We interpret these results as a critical slowing down of spin fluctuations towards T = 0 K. We confirm these observations by magnetic measurements of CaRu0.97 Ti 0.03 O3, which show a pronounced magnetic response corresponding to the above temperatures.
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Physical Review B, 2018, 98, 13, 134436-Funding / projects:
- Superconductivity, Magnetism, and Fluctuation Phenomena (RS-MESTD-Basic Research (BR or ON)-171027)
- Functional, Functionalized and Advanced Nanomaterials (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
- Swiss National Science Foundation (PP00P2_150573)
DOI: 10.1103/PhysRevB.98.134436
ISSN: 2469-9950; 2469-9969
WoS: 000447917300002
Scopus: 2-s2.0-85055346585
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VinčaTY - JOUR AU - Bradarić, Ivica AU - Matić, Vladimir M. AU - Savić, Ilija AU - Rakočević, Zlatko Lj. AU - Popović, Maja AU - Destraz, Daniel AU - Keller, Hugo PY - 2018 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7907 AB - Calcium ruthenate (CaRuO3) is widely believed to be located close to a quantum critical point due to the strong non-Fermi-liquid behavior expressed in the temperature dependence of electronic transport, specific heat, optical conductivity, etc. However, the corresponding anomalous behavior, marking crossover temperature regimes in the magnetic response of CaRuO3, is still lacking. Here we report detailed AC and DC magnetic susceptibility measurements of CaRuO3 and CaR u0.97 Ti 0.03 O3. The AC magnetic susceptibility measurements of CaRuO3 show a slight dependence on the frequency of AC magnetic field below ∼40K, and an additional subtle change of curvature around 12 K. We interpret these results as a critical slowing down of spin fluctuations towards T = 0 K. We confirm these observations by magnetic measurements of CaRu0.97 Ti 0.03 O3, which show a pronounced magnetic response corresponding to the above temperatures. T2 - Physical Review B T1 - Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping VL - 98 IS - 13 SP - 134436 DO - 10.1103/PhysRevB.98.134436 ER -
@article{ author = "Bradarić, Ivica and Matić, Vladimir M. and Savić, Ilija and Rakočević, Zlatko Lj. and Popović, Maja and Destraz, Daniel and Keller, Hugo", year = "2018", abstract = "Calcium ruthenate (CaRuO3) is widely believed to be located close to a quantum critical point due to the strong non-Fermi-liquid behavior expressed in the temperature dependence of electronic transport, specific heat, optical conductivity, etc. However, the corresponding anomalous behavior, marking crossover temperature regimes in the magnetic response of CaRuO3, is still lacking. Here we report detailed AC and DC magnetic susceptibility measurements of CaRuO3 and CaR u0.97 Ti 0.03 O3. The AC magnetic susceptibility measurements of CaRuO3 show a slight dependence on the frequency of AC magnetic field below ∼40K, and an additional subtle change of curvature around 12 K. We interpret these results as a critical slowing down of spin fluctuations towards T = 0 K. We confirm these observations by magnetic measurements of CaRu0.97 Ti 0.03 O3, which show a pronounced magnetic response corresponding to the above temperatures.", journal = "Physical Review B", title = "Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping", volume = "98", number = "13", pages = "134436", doi = "10.1103/PhysRevB.98.134436" }
Bradarić, I., Matić, V. M., Savić, I., Rakočević, Z. Lj., Popović, M., Destraz, D.,& Keller, H.. (2018). Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping. in Physical Review B, 98(13), 134436. https://doi.org/10.1103/PhysRevB.98.134436
Bradarić I, Matić VM, Savić I, Rakočević ZL, Popović M, Destraz D, Keller H. Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping. in Physical Review B. 2018;98(13):134436. doi:10.1103/PhysRevB.98.134436 .
Bradarić, Ivica, Matić, Vladimir M., Savić, Ilija, Rakočević, Zlatko Lj., Popović, Maja, Destraz, Daniel, Keller, Hugo, "Anomalous magnetic properties of CaRuO3 probed by AC and DC magnetic measurements and by low Ti impurity doping" in Physical Review B, 98, no. 13 (2018):134436, https://doi.org/10.1103/PhysRevB.98.134436 . .