TY  - 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 . .

TY  - 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/123456789/7908
UR  - https://arxiv.org/abs/1712.04471
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 . .

TY  - JOUR
AU  - Zorkovska, A.
AU  - Baran, A.
AU  - Bradarić, Ivica
AU  - Savić, Ilija
AU  - Sebek, J.
AU  - Santava, E.
AU  - Svoboda, Pavel
AU  - Marincev, D.
AU  - Kohout, S.
AU  - Keller, Hugo
AU  - Feher, A.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6671
AB  - In order to shed more light on the character of magnetic correlations at low temperatures in CaRuO3, the delicate effect of substituting nonmagnetic Ti4+ for Ru4+ in low concentrations (0.5-15%) has been investigated by magnetization, AC-susceptibility and specific heat measurements. Despite the clear features in magnetic measurement data at 34K no specific heat anomaly has been observed, nevertheless, two temperature regions with different magnetic characters have been identified. . In pure CaRuO3 sisignificant low-temperature upturn of C/T is visible below 15 K. This feature is suppressed by Ti substitution. (c) 2007 Elsevier B.V. All rights reserved.
T2  - Journal of Magnetism and Magnetic Materials
T1  - Influence of Ti4+ on the magnetic state of CaRu1-xTixO3
VL  - 316
IS  - 2
SP  - E699
EP  - E702
DO  - 10.1016/j.jmmm.2007.03.065
ER  - 

@article{
author = "Zorkovska, A. and Baran, A. and Bradarić, Ivica and Savić, Ilija and Sebek, J. and Santava, E. and Svoboda, Pavel and Marincev, D. and Kohout, S. and Keller, Hugo and Feher, A.",
year = "2007",
abstract = "In order to shed more light on the character of magnetic correlations at low temperatures in CaRuO3, the delicate effect of substituting nonmagnetic Ti4+ for Ru4+ in low concentrations (0.5-15%) has been investigated by magnetization, AC-susceptibility and specific heat measurements. Despite the clear features in magnetic measurement data at 34K no specific heat anomaly has been observed, nevertheless, two temperature regions with different magnetic characters have been identified. . In pure CaRuO3 sisignificant low-temperature upturn of C/T is visible below 15 K. This feature is suppressed by Ti substitution. (c) 2007 Elsevier B.V. All rights reserved.",
journal = "Journal of Magnetism and Magnetic Materials",
title = "Influence of Ti4+ on the magnetic state of CaRu1-xTixO3",
volume = "316",
number = "2",
pages = "E699-E702",
doi = "10.1016/j.jmmm.2007.03.065"
}

Zorkovska, A., Baran, A., Bradarić, I., Savić, I., Sebek, J., Santava, E., Svoboda, P., Marincev, D., Kohout, S., Keller, H.,& Feher, A.. (2007). Influence of Ti4+ on the magnetic state of CaRu1-xTixO3. in Journal of Magnetism and Magnetic Materials, 316(2), E699-E702.
https://doi.org/10.1016/j.jmmm.2007.03.065

Zorkovska A, Baran A, Bradarić I, Savić I, Sebek J, Santava E, Svoboda P, Marincev D, Kohout S, Keller H, Feher A. Influence of Ti4+ on the magnetic state of CaRu1-xTixO3. in Journal of Magnetism and Magnetic Materials. 2007;316(2):E699-E702.
doi:10.1016/j.jmmm.2007.03.065 .

Zorkovska, A., Baran, A., Bradarić, Ivica, Savić, Ilija, Sebek, J., Santava, E., Svoboda, Pavel, Marincev, D., Kohout, S., Keller, Hugo, Feher, A., "Influence of Ti4+ on the magnetic state of CaRu1-xTixO3" in Journal of Magnetism and Magnetic Materials, 316, no. 2 (2007):E699-E702,
https://doi.org/10.1016/j.jmmm.2007.03.065 . .