Anticrossing effect between magnon and phonon in Bose-Einstein condensation phase of TlCuCl3

被引：0

作者：

Kuroe, H. ^{[1
]}

Oosawa, A. ^{[1
]}

Sekine, T. ^{[1
]}

Yamada, F. ^{[2
]}

Tanaka, H. ^{[2
]}

Matsumoto, M. ^{[3
]}

机构：

[1] Sophia Univ, Dept Phys, Tokyo 1028554, Japan

[2] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

[3] Shizuoka Univ, Dept Phys, Shizuoka 4228529, Japan

来源：

25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 4: QUANTUM PHASE TRANSITIONS AND MAGNETISM | 2009年 / 150卷

关键词：

BILBAO CRYSTALLOGRAPHIC SERVER;

D O I：

10.1088/1742-6596/150/4/042104

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Raman spectra in TlCuCl3 under the magnetic field up to 12 T are reported. Above the critical magnetic field of the quantum phase transition to the magnon Bose-Einstein condensation phase, the one-magnon Raman peak is observed. Above 10 T, the one-magnon energy approaches the energy of the A(g) phonon (3.1 meV) and the anticrossing effect is observed. By using the Green-function theory with three adjustable parameters, we estimate the amplitude of the attractive magnon-phonon interaction as 0.043 meV. The consistency between the present results and those of previous works is discussed.

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页数：4

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