New High-Field Phase in the Spin-Peierls System, Tetrathiafulvalene-Cu<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">S</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></math><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">C</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></math><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mo>(</mo><mi mathvariant="normal">C</mi><mrow><msub><mrow><mi mathvariant="normal">F</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow><mo>)</mo></mrow><mrow><mn>4</mn></mrow></msub></mrow></math>

D. Bloch; J. Voiron; J. C. Bonner; J. W. Bray; I. S. Jacobs; L. V. Interrante

doi:10.1103/PhysRevLett.44.294

New High-Field Phase in the Spin-Peierls System, Tetrathiafulvalene-Cu $S_{4}$ $C_{4}$ ${(C F_{3})}_{4}$

D. Bloch, J. Voiron, J. C. Bonner, J. W. Bray, I. S. Jacobs, and L. V. Interrante

Phys. Rev. Lett. 44, 294 – Published 28 January 1980

Abstract

New magnetization data on the spin-Peierls system tetrathiafulvalene-Cu $S_{4}$ $C_{4}$ ${(C F_{3})}_{4}$ for $h <~ 155$ kOe and $T >~ 1.5$ K provide evidence for a new phase above $h \sim 115$ kOe. Considerable hysteresis in the field-induced transitions is observed for $T <~ 5.5$ K. These results are discussed in the light of current theoretical ideas.