2026-06-29T09:28:09Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/601132023-08-28T16:36:18Zcom_20.500.14352_14col_20.500.14352_15

Hysteresis shift in Fe-filled carbon nanotubes due to γ-Fe Prados, C. Crespo del Arco, Patricia González, J. M. Hernando Grande, Antonio Marcos, J. F. Gancedo, R. Grobert, N. Terrones, M. Walton, R. M. Kroto, H. W. 538.9 Physics Condensed matter Física de materiales Física del estado sólido 2211 Física del Estado Sólido ©2002 The American Physical Society The phase distribution of high aspect ratio, Fe-filled carbon nanotubes prepared by pyrolyzing a mixture of powered ferrocene and C_(60) has been determined by means of Mössbauer spectroscopy. Our results for that characterization are closely related to the observation, after field cooling processes, of a hysteresis loop shift and clearly suggest a spatial phase distribution which includes the presence of a g-Fe/α-Fe interface. The temperature ependence of the hysteresis loop shift is discussed in terms of localized regions at that interface exhibiting uncompensated antiferromagnetism within reduced dimensions. Depto. de Física de Materiales Fac. de Ciencias Físicas TRUE pub 2023-06-20T20:20:28Z 2023-06-20T20:20:28Z 2002-03-15 journal article https://hdl.handle.net/20.500.14352/60113 1098-0121 10.1103/PhysRevB.65.113405 eng open access application/pdf American Physical Society