%0 Journal Article %1 WOS:000080440400007 %A de la Presa, P %A Alonso, RE %A Ayala, A %A Habenicht, S %A Krishnamurthy, VV %A Lieb, KP %A Garcia, AL %A Neubauer, M %A Uhrmacher, M %C THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND %D 1999 %I PERGAMON-ELSEVIER SCIENCE LTD %J JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS %K angular correlation spectroscopy} {perturbed %N 6 %P 749-757 %R 10.1016/S0022-3697(98)00344-8 %T Hyperfine interactions in the perovskites SrHfO3 and BaHfO3 observed with In-111/Cd-111 perturbed angular correlations %V 60 %X The electric field gradients in perovskite SrHfO3 and BaHfO3 powder samples were investigated by means of Perturbed Angular Correlation spectroscopy, using implanted In-111 hyperfine probes. The measurements cover the temperature ranges from 22 to 893 K for SrHfO3 and from 293 to 875 K for BaHfO3, respectively. In both compounds, three quadrupole interactions were established. The largest fraction showing a pronounced dynamic interaction is assigned to In-111/Cd-111 probe atoms on substitutional Hf sites in both compounds. For SrHfO3, the temperature dependence of the dynamic interaction was associated to the Pnma <-> Imma phase transition for SrHfO3 at about 700 K. We discuss the results in relation to those obtained for In-111/Cd-111-probes in PbZrO3 and BaTiO3, and for Hf-181/Ta-181-probes in AHfO(3) (A = Ca, Sr, Ba). (C) 1999 Elsevier Science Ltd. All rights reserved.

@article{WOS:000080440400007, abstract = {The electric field gradients in perovskite SrHfO3 and BaHfO3 powder samples were investigated by means of Perturbed Angular Correlation spectroscopy, using implanted In-111 hyperfine probes. The measurements cover the temperature ranges from 22 to 893 K for SrHfO3 and from 293 to 875 K for BaHfO3, respectively. In both compounds, three quadrupole interactions were established. The largest fraction showing a pronounced dynamic interaction is assigned to In-111/Cd-111 probe atoms on substitutional Hf sites in both compounds. For SrHfO3, the temperature dependence of the dynamic interaction was associated to the Pnma <-> Imma phase transition for SrHfO3 at about 700 K. We discuss the results in relation to those obtained for In-111/Cd-111-probes in PbZrO3 and BaTiO3, and for Hf-181/Ta-181-probes in AHfO(3) (A = Ca, Sr, Ba). (C) 1999 Elsevier Science Ltd. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, author = {de la Presa, P and Alonso, RE and Ayala, A and Habenicht, S and Krishnamurthy, VV and Lieb, KP and Garcia, AL and Neubauer, M and Uhrmacher, M}, biburl = {https://www.bibsonomy.org/bibtex/26c677610af85957ccaaf2420d1589023/ppgfis_ufc_br}, doi = {10.1016/S0022-3697(98)00344-8}, interhash = {6ccd993810bbcd93b245ccf7969ce81a}, intrahash = {6c677610af85957ccaaf2420d1589023}, issn = {0022-3697}, journal = {JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS}, keywords = {angular correlation spectroscopy} {perturbed}, number = 6, pages = {749-757}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Hyperfine interactions in the perovskites SrHfO3 and BaHfO3 observed with In-111/Cd-111 perturbed angular correlations}, tppubtype = {article}, volume = 60, year = 1999 }