Magneto-Acoustic Faraday Effect in Tb3Ga5O12

被引：7

作者：

Sytcheva, A. ^{[1
]}

Loew, U. ^{[2
]}

Yasin, S. ^{[1
]}

Wosnitza, J. ^{[1
]}

Zherlitsyn, S. ^{[1
]}

Goto, T. ^{[3
]}

Wyder, P. ^{[4
]}

Luethi, B. ^{[5
]}

机构：

[1] Forschungszentrum Dresden Rossendorf, Hochfeld Magnetlabor Dresden HLD, D-01314 Dresden, Germany

[2] Tech Univ Dortmund, D-44221 Dortmund, Germany

[3] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan

[4] Grenoble High Magnet Field Lab, F-38042 Grenoble 09, France

[5] Goethe Univ Frankfurt, Inst Phys, D-60054 Frankfurt, Germany

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2010年 / 159卷 / 1-2期

关键词：

CEF levels; Elastic constants; Magneto-acoustic Faraday effect;

D O I：

10.1007/s10909-009-0082-x

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The transverse acoustic wave propagating along the [100] axis of the cubic paramagnet Tb3Ga5O12 (TGG) exhibits amplitude oscillations as a function of magnetic field applied in the direction of propagation. This magneto-acoustic Faraday effect shows a linear frequency dependence contrary to theoretical expectation which demands a quadratic frequency dependence. The c (44) mode demonstrates also a strong softening of 6% up to 19 T, the magnetic field where an energy level of the CEF triplet branch starts to cross the quasi-doublet branch. This softening has the same origin, the magneto-elastic coupling, as the anomalies in the temperature dependence of the elastic constants and the magneto-acoustic Faraday effect.

引用

页码：126 / 129

页数：4

共 13 条

[1] Magneto-elastic properties of Tb3Ga5O12 (TGG) [J].

Araki, K. ;

Goto, T. ;

Nemoto, Y. ;

Yanagisawa, T. ;

Luethi, B. .

EUROPEAN PHYSICAL JOURNAL B, 2008, 61 (03) :257-259

[2] STEP-LIKE MAGNETIZATION CURVES IN TB3GA5O12 [J].

GUILLOT, M ;

MARCHAND, A ;

NEKVASIL, V ;

TCHEOU, F .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1985, 18 (18) :3547-3550

[3] On the phonon hall effect in a paramagnetic dielectric [J].

Inyushkin, A. V. ;

TaIdenkov, A. N. .

JETP LETTERS, 2007, 86 (06) :379-382

[4] Anomalous hall effect for the phonon heat conductivity in paramagnetic dielectrics [J].

Kagan, Yu. ;

Maksimov, L. A. .

PHYSICAL REVIEW LETTERS, 2008, 100 (14)

[5] Field-induced antiferromagnetism and competition in the metamagnetic state of terbium gallium garnet [J].

Kamazawa, K. ;

Louca, Despina ;

Morinaga, R. ;

Sato, T. J. ;

Huang, Q. ;

Copley, J. R. D. ;

Qiu, Y. .

PHYSICAL REVIEW B, 2008, 78 (06)

[6]

LOW U, UNPUB

[7] MAGNETOELASTICITY, ROTATIONAL INVARIANCE AND MAGNETOACOUSTIC BIREFRINGENCE IN CEAL2 [J].

LUTHI, B ;

LINGNER, C .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1979, 34 (02) :157-163

[8]

Luthi B., 2005, Physical acoustics in the solid state

[9] Theory of the phonon Hall effect in paramagnetic dielectrics [J].

Sheng, L ;

Sheng, DN ;

Ting, CS .

PHYSICAL REVIEW LETTERS, 2006, 96 (15)

[10] Phenomenological evidence for the phonon Hall effect [J].

Strohm, C ;

Rikken, GLJA ;

Wyder, P .

PHYSICAL REVIEW LETTERS, 2005, 95 (15)

← 1 2 →