Status of PRESS-MAG-O: The experimental apparatus to probe materials and phenomena under extreme conditions at Frascati

Daniele Di Gioacchino , Augusto Marcelli , Mariangela Cestelli Guidi , Massimo Piccinini , Alessandro Puri (1) , Paolo Postorino , Emanuele Pace , Antonio de Sio , Lisa Gambicorti

1 Dipartimento di Fisica

In this contribution we up-to-date the status of the PRESS-MAG-O device, a new instrument under commissioning at the INFN designed to perform magnetic and spectroscopic experiments on samples under extreme conditions. The system has been designed to work at SINBAD, the IR synchrotron radiation beamline operational at DAΦNE. The instrument, that is the result of a significant R&D, will allow performing concurrent high harmonic ac magnetic susceptibility measurements and magneto-optic experiments on a sample under high pressure, with a variable DC magnetic field in a wide temperature range. The vacuum vessel has been designed with four crossing windows to allow optical measurements in the transmission geometry on the sample loaded inside a Diamond Anvil Cell. A new superconducting miniaturized micro-SQUID gradiometer has been also developed to detect the low magnetic signal of the sample and a customized optical system has been also designed to perform IR synchrotron radiation experiments.

Mots clés: Phase transition; High pressure; High harmonic magnetic ac susceptibility measurements; IR spectroscopy

Daniele Di Gioacchino, Augusto Marcelli, Mariangela Cestelli Guidi, Massimo Piccinini, Alessandro Puri, et al.. Status of PRESS-MAG-O: The experimental apparatus to probe materials and phenomena under extreme conditions at Frascati. Journal of Physics and Chemistry of Solids, 2010, 71 (8), pp.1042. ⟨10.1016/j.jpcs.2010.03.003⟩. ⟨hal-00661918⟩