The Soft Mode Transition Induced by Magnetic Field and Pressure in TlCuCl_3 and Related Dimer Compounds(Field-Induced Magnetic Ordering, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)

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概要

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• TlCuCl_3 is an example of a quantum spin liquid of S=1/2 Cu^<2+> dimers. Strong interdimer superexchange interactions give rise to a three-dimensional dispersion of the triplet magnon. The minimum excitation energy determines the spin gap which is significantly smaller than the dimer coupling. It can be closed by an applied hydrostatic pressure of the order of 1kbar or by a magnetic field of 5.6T, offering a unique opportunity to study the evolution of the magnon modes through the pressure- and field-induced quantum phase transitions.

• 理論物理学刊行会の論文
• 2005-10-31

著者

• Sigrist Manfred

  Theoretische Physik Eth-honggerberg

• Sigrist Manfred

  Theoretische Physik Eth-honggerberg:department Of Physics Kyoto University

• Matsumoto Mutsuyoshi

  Dep. Of Materials Sci. And Engineering Fac. Of Industrial Sci. And Technol. Tokyo Univ. Of Sci.

• Matsumoto Michio

  Dep. Of Materials Sci. And Engineering Fac. Of Industrial Sci. And Technol. Tokyo Univ. Of Sci.

• Normand B.

  Departement De Physique Universite De Fribourg

• MATSUMOTO Masashige

  Department of Physics, Shizuoka University

• MATSUMOTO Masashige

  Theoretische Physik, ETH-Honggerberg

• RICE T.

  Theoretische Physik, ETH-Honggerberg

• Sigrist Manfred

  Theoretische Physik

• Rice T.

  Theoretische Physik Eth-honggerberg

• Matsumoto Masashige

  Theoretische Physik Eth-honggerberg:department Of Physics Faculty Of Science Shizuoka University

• Sigrist Manfred

  Theoretische Physik, ETH-Honggerberg:Department of Physics, Kyoto University

• MATSUMOTO Masashige

  Theoretische Physik, ETH-Honggerberg:Department of Physics, Shizuoka University

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