Quantum oscillation measurements on the organic superconductor ?-(BEDT-TTF)2I3

• Autorzy: Nothardt A. , Balthes E. , Salameh B. , Schmidt W. , Schweitzer D. , Strempfer J. , Keimer D. , Maude D.
• Języki publikacji: EN

Abstrakty

EN

Quantum oscillation experiments were performed on high quality single crystals of ?-(BEDT-TTF)2I3. Their electronic properties are similar to those of crystals of ?-(BEDT-TTF)2(I3)1-x(AuI2)x (x < 0.02). Nevertheless, in the neat crystals used here, quantum oscillations for the a-orbit (Fa?= 780 T) are observed already at a field of 2 T, and the magnetic breakdown of the a-orbit (Fa= 4200 T) occurs at 3 T. In the large magnetic field range, in which quantum oscillations are observed, the warping of the Fermi surface of the a-orbit and a-orbit could be determined to be aFa?= 6.6 T and aFa?= 16.6 T, respectively. At high magnetic fields, the de Haas-van Alphen signal consists of pronounced inverse saw-tooth oscillations, and the Shubnikov-de Haas signal has a peaked structure. This behaviour is interpreted in terms of magnetic interaction.

Słowa kluczowe

EN

magnetic field; quantum oscillation; superconductor

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2004
• Tom: Vol. 22, No. 4
• Strony: 299--305
• Opis fizyczny: Bibliogr. 11 poz.

Twórcy

autor

Nothardt A.

• Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
• Max-Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany

autor

Balthes E.

• Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany

autor

Salameh B.

• Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany

autor

Schmidt W.

• Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany

autor

Schweitzer D.

• Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany

autor

Strempfer J.

• Max-Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany

autor

Keimer D.

• Max-Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany

autor

Maude D.

• Grenoble High Magnetic Field Laboratory, 25 Avenue des Martyrs, B.P. 166, 38042 Grenoble, Cedex 9, France

Bibliografia

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