High-Pressure Low-Temperature Study of LnCa4O(BO3)3 (Ln = Pr, Nd, Gd, Er, Tm)
Year: 2024
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide We investigated the site-disorder and thermal expansion of LnCa 4 O(BO 3 ) 3 ( Ln = Pr, Nd, Gd, Er, Tm) through a single crystal structural study conducted between 100 and 300 K. Additionally, a high-pressure synchrotron X-ray diffraction study at low temperatures was conducted to determine the compressibility of both ordered and disordered prototype oxyborate lanthanides, specifically NdCa 4 O(BO 3 ) 3 and ErCa 4 O(BO 3 ) 3 . The study revealed distinct behaviors consistent with their respective ionic radii. Furthermore, satellite reflections at 50 K, along with the onset of a triple a -parameter in the Nd crystal, indicate that the ground state of this extensively studied family may be different from what was previously reported.
Source: ACS Omega
Institutions: École Nationale Supérieure de Chimie de Montpellier, Centre National de la Recherche Scientifique, Institut Charles Gerhardt Montpellier, Institut Universitaire de France, Shandong University, State Key Laboratory of Crystal Materials, University of Wollongong, Elettra-Sincrotrone Trieste S.C.p.A.
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,935
OpenAlex ID: W4404511923