Competing instabilities and the high field phases of (TMTSF)2 ClO4

S. K. McKernan; S. T. Hannahs; U. M. Scheven; G. M. Danner; P. M. Chaikin

doi:10.1103/PhysRevLett.75.1630

Competing instabilities and the high field phases of (TMTSF)2 ClO4

S. K. McKernan, S. T. Hannahs, U. M. Scheven, G. M. Danner, P. M. Chaikin

Research output: Contribution to journal › Article › peer-review

Abstract

In this Letter we establish the phase diagram of (TMTSF)2 ClO4 to 30 T and above 0.5 K by transport and magnetization measurements. The high field region is bounded above by a second order transition from metallic to field induced spin density wave state at 5.5 K. Completely contained inside this boundary is a first order line terminating in a critical point. Neither phase boundary shows the large oscillations predicted in recent models. Our results suggest that there are separate transitions on each of the two Fermi surfaces, with only weak coupling between the order parameters.

Original language	English (US)
Pages (from-to)	1630-1633
Number of pages	4
Journal	Physical Review Letters
Volume	75
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.75.1630
State	Published - 1995

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General Physics and Astronomy

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10.1103/PhysRevLett.75.1630

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abstract = "In this Letter we establish the phase diagram of (TMTSF)2 ClO4 to 30 T and above 0.5 K by transport and magnetization measurements. The high field region is bounded above by a second order transition from metallic to field induced spin density wave state at 5.5 K. Completely contained inside this boundary is a first order line terminating in a critical point. Neither phase boundary shows the large oscillations predicted in recent models. Our results suggest that there are separate transitions on each of the two Fermi surfaces, with only weak coupling between the order parameters.",

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AU - Hannahs, S. T.

AU - Scheven, U. M.

AU - Danner, G. M.

AU - Chaikin, P. M.

PY - 1995

Y1 - 1995

N2 - In this Letter we establish the phase diagram of (TMTSF)2 ClO4 to 30 T and above 0.5 K by transport and magnetization measurements. The high field region is bounded above by a second order transition from metallic to field induced spin density wave state at 5.5 K. Completely contained inside this boundary is a first order line terminating in a critical point. Neither phase boundary shows the large oscillations predicted in recent models. Our results suggest that there are separate transitions on each of the two Fermi surfaces, with only weak coupling between the order parameters.

AB - In this Letter we establish the phase diagram of (TMTSF)2 ClO4 to 30 T and above 0.5 K by transport and magnetization measurements. The high field region is bounded above by a second order transition from metallic to field induced spin density wave state at 5.5 K. Completely contained inside this boundary is a first order line terminating in a critical point. Neither phase boundary shows the large oscillations predicted in recent models. Our results suggest that there are separate transitions on each of the two Fermi surfaces, with only weak coupling between the order parameters.

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Competing instabilities and the high field phases of (TMTSF)2 ClO4

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