Magnetic dipole and electric quadrupole interactions of 181Ta probe in Ni-Hf alloy
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2009
Authors
Umićević, AnaCekić, Božidar Đ.
Ivanovski, Valentin N.
Koteski, Vasil J.
Belošević-Čavor, Jelena
Šiljegović, Milorad
Pavlović, S.
Article (Published version)
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The hyperfine interactions of Ta-181 probe in the nickel-2 at.% hafnium alloy have been studied by the perturbed angular correlation method in the temperature range 78-1131K. The magnitude of the magnetic dipole interaction of Hf-181/Ta-181 substituting in ferromagnetic Ni(Hf) solid solution decreases with increasing temperature. As a result of the restricted solid solubility of Hf in Ni, a second phase (HfNi5) in the Ni-Hf sample was detected. Hf-181/Ta-181 which resides in HfNi5 senses weak electric quadrupole interaction. The observed anomalous temperature behavior was ascribed to distortions in the HfNi5 cubic phase. The third measured hyperfine interaction corresponds to the quadrupole interaction of Hf-181/Ta-181 positioned in HfO2 contamination originating from an annealing procedure above 900 K.
Keywords:
Intermetallics / Hyperfine interactions / PACSource:
Journal of Alloys and Compounds, 2009, 475, 1-2, 38-41Funding / projects:
- Strukturne, dinamičke i spektroskopske karakteristike intermetalika i poluprovodnika (RS-MESTD-MPN2006-2010-141022)
DOI: 10.1016/j.jallcom.2008.07.107
ISSN: 0925-8388; 1873-4669
WoS: 000265911700022
Scopus: 2-s2.0-63749132349
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VinčaTY - JOUR AU - Umićević, Ana AU - Cekić, Božidar Đ. AU - Ivanovski, Valentin N. AU - Koteski, Vasil J. AU - Belošević-Čavor, Jelena AU - Šiljegović, Milorad AU - Pavlović, S. PY - 2009 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3694 AB - The hyperfine interactions of Ta-181 probe in the nickel-2 at.% hafnium alloy have been studied by the perturbed angular correlation method in the temperature range 78-1131K. The magnitude of the magnetic dipole interaction of Hf-181/Ta-181 substituting in ferromagnetic Ni(Hf) solid solution decreases with increasing temperature. As a result of the restricted solid solubility of Hf in Ni, a second phase (HfNi5) in the Ni-Hf sample was detected. Hf-181/Ta-181 which resides in HfNi5 senses weak electric quadrupole interaction. The observed anomalous temperature behavior was ascribed to distortions in the HfNi5 cubic phase. The third measured hyperfine interaction corresponds to the quadrupole interaction of Hf-181/Ta-181 positioned in HfO2 contamination originating from an annealing procedure above 900 K. T2 - Journal of Alloys and Compounds T1 - Magnetic dipole and electric quadrupole interactions of 181Ta probe in Ni-Hf alloy VL - 475 IS - 1-2 SP - 38 EP - 41 DO - 10.1016/j.jallcom.2008.07.107 ER -
@article{ author = "Umićević, Ana and Cekić, Božidar Đ. and Ivanovski, Valentin N. and Koteski, Vasil J. and Belošević-Čavor, Jelena and Šiljegović, Milorad and Pavlović, S.", year = "2009", abstract = "The hyperfine interactions of Ta-181 probe in the nickel-2 at.% hafnium alloy have been studied by the perturbed angular correlation method in the temperature range 78-1131K. The magnitude of the magnetic dipole interaction of Hf-181/Ta-181 substituting in ferromagnetic Ni(Hf) solid solution decreases with increasing temperature. As a result of the restricted solid solubility of Hf in Ni, a second phase (HfNi5) in the Ni-Hf sample was detected. Hf-181/Ta-181 which resides in HfNi5 senses weak electric quadrupole interaction. The observed anomalous temperature behavior was ascribed to distortions in the HfNi5 cubic phase. The third measured hyperfine interaction corresponds to the quadrupole interaction of Hf-181/Ta-181 positioned in HfO2 contamination originating from an annealing procedure above 900 K.", journal = "Journal of Alloys and Compounds", title = "Magnetic dipole and electric quadrupole interactions of 181Ta probe in Ni-Hf alloy", volume = "475", number = "1-2", pages = "38-41", doi = "10.1016/j.jallcom.2008.07.107" }
Umićević, A., Cekić, B. Đ., Ivanovski, V. N., Koteski, V. J., Belošević-Čavor, J., Šiljegović, M.,& Pavlović, S.. (2009). Magnetic dipole and electric quadrupole interactions of 181Ta probe in Ni-Hf alloy. in Journal of Alloys and Compounds, 475(1-2), 38-41. https://doi.org/10.1016/j.jallcom.2008.07.107
Umićević A, Cekić BĐ, Ivanovski VN, Koteski VJ, Belošević-Čavor J, Šiljegović M, Pavlović S. Magnetic dipole and electric quadrupole interactions of 181Ta probe in Ni-Hf alloy. in Journal of Alloys and Compounds. 2009;475(1-2):38-41. doi:10.1016/j.jallcom.2008.07.107 .
Umićević, Ana, Cekić, Božidar Đ., Ivanovski, Valentin N., Koteski, Vasil J., Belošević-Čavor, Jelena, Šiljegović, Milorad, Pavlović, S., "Magnetic dipole and electric quadrupole interactions of 181Ta probe in Ni-Hf alloy" in Journal of Alloys and Compounds, 475, no. 1-2 (2009):38-41, https://doi.org/10.1016/j.jallcom.2008.07.107 . .