Physical properties ofπ-d interaction-based molecular conducting magnet (EDO-TTFBr2)2FeCl4 under pressure View Full Text


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Article Info

DATE

2006-02

AUTHORS

A. Miyazaki, M. Aimatsu, T. Enoki, R. Watanabe, E. Ogura, Y. Kuwatani, M. Iyoda

ABSTRACT

The electrical resistivities and magnetoresistances (MR) of a radical ion salt (EDO-TTFBr2)2FeCl4 and its diamagnetic analogue (EDO-TTFBr2)2GaCl4 are investigated under pressures. The resistivity of the FeCl4 salt shows two anomalies due to the successive transitions of the π-electron layer, and another anomaly coming from the long-range magnetic ordering of the FeCl4 layer. For the GaCl4 salt negative MR is observed in the low-field region, suggesting a decrease of the SDW gap by applying the magnetic field. The MR of the FeCl4 salt shows two abrupt increases, which proves the presence of field-induced successive transitions in the composite π-d spin system. The field dependence of the MR of this salt can be qualitatively explained based on the frustrated magnetic structure of π- and d-electron spins interacting with each other. More... »

PAGES

477-480

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf02679549

DOI

http://dx.doi.org/10.1007/bf02679549

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1037680624


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