Powder Diffraction Refinements of the Structure of Magnetite (Fe3O4) Below the Verwey Transition

MRS Advances Springer Nature 658 (2000) gg2.6

Authors:

Jon P Wright, J Paul Attfield, Paolo G Radaelli

Structure and superconductivity of YSr2Cu3O7-d

PHYSICA C 341 (2000) 605-606

Authors:

E Gilioli, PG Radaelli, A Gauzzi, F Licci, M Marezio

ChemInform Abstract: Phase Segregation in Manganese Perovskites

ChemInform Wiley 30:41 (1999) no-no

Authors:

PG Radaelli, DN Argyriou, DE Cox, L Capogna, H Casalta, K Andersen, S‐W Cheong, JF Mitchell, M Marezio

Spatial cross-over of polarons across the CMR transition in La0.75Ca0.25MnO3 system.

J Synchrotron Radiat 6:Pt 3 (1999) 776-778

Authors:

A Lanzara, F Natoli, NL Saini, A Bianconi, PG Radaelli

Transition from itinerant to polaronic conduction in La1-xSrxCoO3 perovskites

Europhysics Letters 45:3 (1999) 399-405

Authors:

R Caciuffo, J Mira, J Rivas, MA Señarís-Rodríguez, PG Radaelli, F Carsughi, D Fiorani, JB Goodenough

Abstract:

Neutron diffraction and small-angle scattering on La1-xSrxCoO3 (0 < x ≤ 0.30) show that for x = 0.3 the system is near a two-phase percolation threshold and undergoes a transition from itinerant to polaronic conduction at the Curie temperature TC-The stabilization of superparamagnetic clusters on warming through TC is revealed by an anomalous thermal expansion of the volume and a deviation of the paramagnetic susceptibility from the Curie-Weiss law. The development of a temperature-dependent small-angle-scattering signal confirms that regions of short-range ferromagnetic order are present above TC.