Pressure-induced two-step spin transition with structural symmetry breaking: X-ray diffraction, magnetic, and Raman studies
| hal.structure.identifier | Department of Chemistry | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| hal.structure.identifier | Laboratoire de chimie de coordination [LCC] | |
| dc.contributor.author | SHEPHERD, Helena | |
| hal.structure.identifier | Leiden Institute of Chemistry | |
| dc.contributor.author | BONNET, Sylvestre | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GUIONNEAU, Philippe | |
| hal.structure.identifier | Laboratoire de chimie de coordination [LCC] | |
| dc.contributor.author | BEDOUI, Salma | |
| hal.structure.identifier | European Synchrotron Radiation Facility [ESRF] | |
| dc.contributor.author | GARBARINO, Gastón | |
| hal.structure.identifier | Laboratoire de chimie de coordination [LCC] | |
| dc.contributor.author | NICOLAZZI, William | |
| hal.structure.identifier | Laboratoire de chimie de coordination [LCC] | |
| dc.contributor.author | BOUSSEKSOU, Azzedine | |
| hal.structure.identifier | Laboratoire de chimie de coordination [LCC] | |
| dc.contributor.author | MOLNÁR, Gábor | |
| dc.date.issued | 2011 | |
| dc.identifier.issn | 1098-0121 | |
| dc.description.abstractEn | We have used single-crystal x-ray diffraction, Raman spectroscopy, and magnetometry to investigate the effect of hydrostatic pressures up to 16 kbar on the molecular spin crossover complex [Fe<sup>II</sup>(bapbpy)(NCS)<sub>2</sub>]. A stepped first-order transition from the high-spin (HS) to low-spin (LS) phase was observed upon compression of single-crystal samples. The intermediate phase (IP) is stable between 4 and 11 kbar at room temperature. This phase is characterized by supercell reflections and tripling of the c-axis of the unit cell (C2/c) due to the formation of a periodic [HS-LS-LS] structural motif, as seen in the thermal stepped transition. The pressure-temperature phase diagram reveals an anomalous increase of the thermal hysteresis widths with increasing pressure and the stabilization of the IP across the investigated P-T space. | |
| dc.language.iso | en | |
| dc.publisher | American Physical Society | |
| dc.title.en | Pressure-induced two-step spin transition with structural symmetry breaking: X-ray diffraction, magnetic, and Raman studies | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PhysRevB.84.144107 | |
| dc.subject.hal | Chimie/Chimie de coordination | |
| dc.subject.hal | Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci] | |
| bordeaux.journal | Physical Review B: Condensed Matter and Materials Physics (1998-2015) | |
| bordeaux.page | 144107 | |
| bordeaux.volume | 84 | |
| bordeaux.issue | 14 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00633891 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00633891v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20B:%20Condensed%20Matter%20and%20Materials%20Physics%20(1998-2015)&rft.date=2011&rft.volume=84&rft.issue=14&rft.spage=144107&rft.epage=144107&rft.eissn=1098-0121&rft.issn=1098-0121&rft.au=SHEPHERD,%20Helena&BONNET,%20Sylvestre&GUIONNEAU,%20Philippe&BEDOUI,%20Salma&GARBARINO,%20Gast%C3%B3n&rft.genre=article |
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