Thermal evolution of the electric field gradient at Ta-181 in alpha HfNi
Nema prikaza
Autori
Cekić, Božidar Đ.Umićević, Ana
Ivanovski, Valentin N.
Belošević-Čavor, Jelena
Koteski, Vasil J.
Hu, Rongwei
Petrović, Čedomir
Konferencijski prilog
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The perturbed angular correlation method has been employed to study the temperature dependence of the Ta-181 hyperfine interaction parameters in the poly-crystalline intermetallic compound alpha HfNi. At ambient temperature the frequency of the electric quadrupole interaction was omega(Q) = 26.0(2) Mrad/s and the asymmetry parameter eta = 0.22(1). The magnitude of the observed electric field gradient decreases with increasing temperature from 78 to 900 K. The calculations were done using the augmented plane wave plus local orbitals method as implemented in the WIEN2k code, using the generalized gradient approximation. In addition, a supercell calculation with Ta impurity located at the hafnium site was performed. The obtained result is in a good agreement with the experiment.
Ključne reči:
HfNi / Electric field gradient / PAC / APW plus loIzvor:
Hyperfine Interactions, 2010, 196, 1-3, 339-347Napomena:
- 8th International Workshop on Application of Lasers and Storage Devices in Atomic Nuclei Research - Recent Achievements and Future Prospects (LASER 2009), Jun 22-25, 2009, Poznan, Poland
DOI: 10.1007/s10751-009-0135-1
ISSN: 0304-3843
WoS: 000313358300034
Scopus: 2-s2.0-77953321184
Kolekcije
Institucija/grupa
VinčaTY - CONF AU - Cekić, Božidar Đ. AU - Umićević, Ana AU - Ivanovski, Valentin N. AU - Belošević-Čavor, Jelena AU - Koteski, Vasil J. AU - Hu, Rongwei AU - Petrović, Čedomir PY - 2010 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6992 AB - The perturbed angular correlation method has been employed to study the temperature dependence of the Ta-181 hyperfine interaction parameters in the poly-crystalline intermetallic compound alpha HfNi. At ambient temperature the frequency of the electric quadrupole interaction was omega(Q) = 26.0(2) Mrad/s and the asymmetry parameter eta = 0.22(1). The magnitude of the observed electric field gradient decreases with increasing temperature from 78 to 900 K. The calculations were done using the augmented plane wave plus local orbitals method as implemented in the WIEN2k code, using the generalized gradient approximation. In addition, a supercell calculation with Ta impurity located at the hafnium site was performed. The obtained result is in a good agreement with the experiment. C3 - Hyperfine Interactions T1 - Thermal evolution of the electric field gradient at Ta-181 in alpha HfNi VL - 196 IS - 1-3 SP - 339 EP - 347 DO - 10.1007/s10751-009-0135-1 ER -
@conference{ author = "Cekić, Božidar Đ. and Umićević, Ana and Ivanovski, Valentin N. and Belošević-Čavor, Jelena and Koteski, Vasil J. and Hu, Rongwei and Petrović, Čedomir", year = "2010", abstract = "The perturbed angular correlation method has been employed to study the temperature dependence of the Ta-181 hyperfine interaction parameters in the poly-crystalline intermetallic compound alpha HfNi. At ambient temperature the frequency of the electric quadrupole interaction was omega(Q) = 26.0(2) Mrad/s and the asymmetry parameter eta = 0.22(1). The magnitude of the observed electric field gradient decreases with increasing temperature from 78 to 900 K. The calculations were done using the augmented plane wave plus local orbitals method as implemented in the WIEN2k code, using the generalized gradient approximation. In addition, a supercell calculation with Ta impurity located at the hafnium site was performed. The obtained result is in a good agreement with the experiment.", journal = "Hyperfine Interactions", title = "Thermal evolution of the electric field gradient at Ta-181 in alpha HfNi", volume = "196", number = "1-3", pages = "339-347", doi = "10.1007/s10751-009-0135-1" }
Cekić, B. Đ., Umićević, A., Ivanovski, V. N., Belošević-Čavor, J., Koteski, V. J., Hu, R.,& Petrović, Č.. (2010). Thermal evolution of the electric field gradient at Ta-181 in alpha HfNi. in Hyperfine Interactions, 196(1-3), 339-347. https://doi.org/10.1007/s10751-009-0135-1
Cekić BĐ, Umićević A, Ivanovski VN, Belošević-Čavor J, Koteski VJ, Hu R, Petrović Č. Thermal evolution of the electric field gradient at Ta-181 in alpha HfNi. in Hyperfine Interactions. 2010;196(1-3):339-347. doi:10.1007/s10751-009-0135-1 .
Cekić, Božidar Đ., Umićević, Ana, Ivanovski, Valentin N., Belošević-Čavor, Jelena, Koteski, Vasil J., Hu, Rongwei, Petrović, Čedomir, "Thermal evolution of the electric field gradient at Ta-181 in alpha HfNi" in Hyperfine Interactions, 196, no. 1-3 (2010):339-347, https://doi.org/10.1007/s10751-009-0135-1 . .