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Physical Phenomena At High Magnetic Fields IV

DOI: 10.1142/9789812777805_0048

World Scientific Publishing, International Journal of Modern Physics B, 20n22(16), p. 3105-3108

DOI: 10.1142/s0217979202013675

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MAGNETIC FIELD-INDUCED DENSITY WAVE TRANSITION IN a τ-Phase ORGANIC CONDUCTOR

Journal article published in 2002 by D. Graf ORCID, L. Balicas, J. S. Brooks, C. Mielke, G. C. Papavassiliou
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Pulsed magnetic fields to 53 tesla reveal a new high field phase transition in τ-[ P-(S,S) - DMEDT-TTF ]2 ( AuBr 2)( AuBr 2) y (where y ~.75). This transition appears as an abrupt increase in the magnetoresistance at a threshold field ( B Th ~44 tesla for T = 0.55 K). B Th shifts toward higher magnetic fields with increasing temperature, and there is evidence of higher field sub-phases. Measurements of Shubnikov de Haas oscillations below 33 tesla have provided compelling evidence as to the two-dimensional (2D), metallic nature of this compound. In the following report we discuss this new unexpected state, reminiscent of the field-induced spin density wave (FISDW) behavior in the quasi one-dimensional (Q1D) Bechgaard salts.