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Magnetic properties of KRE(WO4)2 (RE=Gd, Yb, Tm) single crystals

✍ Scribed by M.T. Borowiec; T. Zayarnyuk; M.C. Pujol; M. Aguiló; F. Díaz; E.E. Zubov; A.D. Prokhorov; M. Berkowski; W. Domuchowski; A. Wisniewski; R. Puzniak; J. Pietosa; V.P. Dyakonov; M. Baranski; H. Szymczak

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
541 KB
Volume
405
Category
Article
ISSN
0921-4526

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✦ Synopsis

Magnetic properties of KGd(WO 4 ) 2 , KYb(WO 4 ) 2 and KTm(WO 4 ) 2 single crystals have been studied. Temperature and field dependences of the magnetization along the main magnetic axes and angular dependence of the magnetization in the planes settled on the magnetic axes were recorded in the temperature range from 2 up to 100 K and in magnetic field up to 9 T. Paramagnetic Curie temperatures, g-factors and exchange interaction parameters were determined. Different theoretical models were used to describe magnetic properties of KGd(WO 4 ) 2 and KYb(WO 4 ) 2 crystals.

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✍ D. Kasprowicz; M. Drozdowski; A. Majchrowski; E. Michalski 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 136 KB

The study of KGW: (Er, Yb) was performed for the acoustic phonons [1 0 0], [0 0 1], [À1 0 1], [1 0 1], [1 1 0] and [0 1 1]. In some Brillouin spectra obtained at room temperature we observed additional modes connected with mixed polarization modes propagating as quasilongitudinal or quasi-transverse