{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T10:19:54Z","timestamp":1768558794716,"version":"3.49.0"},"reference-count":18,"publisher":"Cambridge University Press (CUP)","issue":"S1","license":[{"start":{"date-parts":[[2017,2,28]],"date-time":"2017-02-28T00:00:00Z","timestamp":1488240000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["www.cambridge.org"],"crossmark-restriction":true},"short-container-title":["Powder Diffr."],"published-print":{"date-parts":[[2017,9]]},"abstract":"<jats:p>\n                    A combined X-ray powder diffraction (XPD) and high-resolution extended X-ray absorption fine structure (EXAFS) at the Co and Ga\n                    <jats:italic>K<\/jats:italic>\n                    -edges study has been performed for LaCoO\n                    <jats:sub>3<\/jats:sub>\n                    and LaGaO\n                    <jats:sub>3<\/jats:sub>\n                    ceramics, the latter sample was used as a reference without spin transitions. Based on the X-ray diffraction data, we have found that isotropic atomic displacement parameters (ADP) or mean-squared displacement of the Co\u2013O bond exhibit gradual growth below ~50 K, wherein the strain dependencies testify rapid increase below 150 K for the LaCoO\n                    <jats:sub>3<\/jats:sub>\n                    having rhombohedral structure. No similar features could be observed for LaGaO\n                    <jats:sub>3<\/jats:sub>\n                    sample. Above ~100 K the isotropic ADP of the Co\u2013O bond indicate a gradual growth, whereas strain curves show distinct bend near the spin-state transition temperature at about 150 K. According to the EXAFS data, the correlated parallel mean squared relative displacement (MSRD\n                    <jats:sub>||<\/jats:sub>\n                    ) of Co\u2013O and Ga\u2013O bonds exhibit a gradual growth above 150 K; however, in the LaCoO\n                    <jats:sub>3<\/jats:sub>\n                    this parameter is notably bigger. It is supposed that at low temperature the cobalt ions are dominantly in low-spin (LS) state, while certain amount of Co\n                    <jats:sup>3+<\/jats:sup>\n                    ions located within the surface layer of the crystallines have high-spin state (HS). Temperature growth leads to a gradual transformation of the HS state of the cobalt ions into the highly-hybridized intermediate-spin (IS) state, while the cobalt ions located in the inner part of the crystallines remain LS configuration up to 150 K. Further temperature increase leads to a spin transition of the Co\n                    <jats:sup>3+<\/jats:sup>\n                    ions located within the crystallines from the LS state into the IS one.\n                  <\/jats:p>","DOI":"10.1017\/s0885715617000148","type":"journal-article","created":{"date-parts":[[2017,2,28]],"date-time":"2017-02-28T04:57:23Z","timestamp":1488257843000},"page":"S151-S154","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":3,"title":["Anomalous behavior of displacement correlation function and strain in lanthanum cobalt oxide analyzed both from X-ray powder diffraction and EXAFS data"],"prefix":"10.1154","volume":"32","author":[{"given":"V.","family":"Efimov","sequence":"first","affiliation":[]},{"given":"V.","family":"Sikolenko","sequence":"additional","affiliation":[]},{"given":"I. O.","family":"Troyanchuk","sequence":"additional","affiliation":[]},{"given":"D.","family":"Karpinsky","sequence":"additional","affiliation":[]},{"given":"E.","family":"Efimova","sequence":"additional","affiliation":[]},{"given":"S. I.","family":"Tiutiunnikov","sequence":"additional","affiliation":[]},{"given":"B. N.","family":"Savenko","sequence":"additional","affiliation":[]},{"given":"D.","family":"Novoselov","sequence":"additional","affiliation":[]},{"given":"D.","family":"Prabhakaran","sequence":"additional","affiliation":[]}],"member":"56","published-online":{"date-parts":[[2017,2,28]]},"reference":[{"key":"S0885715617000148_ref14","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.79.125105"},{"key":"S0885715617000148_ref6","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.67.144424"},{"key":"S0885715617000148_ref12","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.66.094408"},{"key":"S0885715617000148_ref3","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.80.144423"},{"key":"S0885715617000148_ref1","doi-asserted-by":"publisher","DOI":"10.1007\/s003390101168"},{"key":"S0885715617000148_ref4","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.79.134103"},{"key":"S0885715617000148_ref8","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.66.094404"},{"key":"S0885715617000148_ref5","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.54.5309"},{"key":"S0885715617000148_ref10","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.51.11501"},{"key":"S0885715617000148_ref13","doi-asserted-by":"publisher","DOI":"10.1016\/0921-4526(93)90108-I"},{"key":"S0885715617000148_ref11","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcrysgro.2004.11.120"},{"key":"S0885715617000148_ref7","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.67.224423"},{"key":"S0885715617000148_ref18","article-title":"EXAFS and X-ray diffraction study of LaCoO3 across the spin-state transition","volume":"66","author":"Zobel","year":"2002","journal-title":"Phys. Rev. B"},{"key":"S0885715617000148_ref15","doi-asserted-by":"publisher","DOI":"10.1006\/jssc.1995.1351"},{"key":"S0885715617000148_ref9","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.97.247208"},{"key":"S0885715617000148_ref17","doi-asserted-by":"publisher","DOI":"10.1140\/epjb\/e2010-00063-0"},{"key":"S0885715617000148_ref16","doi-asserted-by":"publisher","DOI":"10.1107\/S0567739476001551"},{"key":"S0885715617000148_ref2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.97.176405"}],"container-title":["Powder Diffraction"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0885715617000148","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T14:59:49Z","timestamp":1768489189000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0885715617000148\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,2,28]]},"references-count":18,"journal-issue":{"issue":"S1","published-print":{"date-parts":[[2017,9]]}},"alternative-id":["S0885715617000148"],"URL":"https:\/\/doi.org\/10.1017\/s0885715617000148","relation":{},"ISSN":["0885-7156","1945-7413"],"issn-type":[{"value":"0885-7156","type":"print"},{"value":"1945-7413","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,2,28]]},"assertion":[{"value":"Copyright \u00a9 International Centre for Diffraction Data 2017\u00a0","name":"license","label":"License","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}}]}}