{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T11:04:32Z","timestamp":1753873472703,"version":"3.41.2"},"reference-count":60,"publisher":"AIP Publishing","issue":"22","funder":[{"name":"BMBF German 388 research program","award":["05K10TS2"],"award-info":[{"award-number":["05K10TS2"]}]},{"name":"BMBF German 388 research program","award":["05KK7TS2"],"award-info":[{"award-number":["05KK7TS2"]}]},{"name":"European Union FP7-through ENSAR","award":["262010"],"award-info":[{"award-number":["262010"]}]},{"name":"FCT Portugal","award":["Norte-070124-FEDER-000070"],"award-info":[{"award-number":["Norte-070124-FEDER-000070"]}]},{"name":"FCT-Portugal","award":["SFRH\/BD\/80112\/2011"],"award-info":[{"award-number":["SFRH\/BD\/80112\/2011"]}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2014,12,14]]},"abstract":"<jats:p>This work presents an atomic scale study of the electric field gradient (EFG) in the tetragonally distorted CdMn2O4 spinel manganite. The EFG temperature dependence at the Cd and Mn sites was followed via perturbed angular correlation measurements with the 111In and 111mCd probes, from 873 down to 12\u2009K at Isolde-CERN. The results show that in the 12\u2013600\u2009K temperature range, a single Jahn-Teller distorted local phase exists. However above 100\u2009K, a dynamic lattice distortion, evidenced by time dependent EFG fluctuations, sets in suggesting a structural instability. Above 600\u2009K, a local MnO6 octahedra with relaxed Jahn-Teller distortions emerge and grow in the low temperature matrix, although no macroscopic tetragonal to cubic phase transition was observed.<\/jats:p>","DOI":"10.1063\/1.4903949","type":"journal-article","created":{"date-parts":[[2014,12,12]],"date-time":"2014-12-12T19:43:38Z","timestamp":1418413418000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":11,"title":["Local symmetry lowering in CdMn2O4 spinel"],"prefix":"10.1063","volume":"116","author":[{"given":"G. N. P.","family":"Oliveira","sequence":"first","affiliation":[{"name":"Universidade de Lisboa 1 CFNUL - Centro de F\u00edsica Nuclear, , Av. 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