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Infrared and Zeeman effect measurements of ferromagnetically coupled Nd ions in weakly doped LiYF4 crystals |
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| Authors: | M BoukhrisS Jandl O Guillot-NoëlD Gourier JY Gesland |
| Institution: | a Centre de recherché sur les propriétés électroniques des matériaux avancés, Département de Physique, Université de Sherbrooke, Canada J1K2R1 b École Nationale Supérieure de Chimie de Paris (ENSCP), Laboratoire de Chimie Appliquée de l'État Solide, UMR CNRS 7574, 11 rue Pierre et Marie Curie, 75231 Paris Cédex 05, France c Universite du Maine Cristallogenese, 72085 Le Mans, Cedex 9, France |
| Abstract: | Crystal-field infrared active excitations and photoluminescence of Nd3+ ions in weakly doped LiYF4 have confirmed that the concentration dependent satellite lines accompanying the Nd3+ crystal-field optical transitions are due to four ferromagnetically coupled pairs of Nd3+ ions in undistorted Y3+ sites with the exchange energies J1=0.9, J2=1.6, J3=3.1 and J4=4.5 cm−1, respectively. A linear Zeeman splitting of the Nd3+ ion 4F3/2→4I9/2 transition is observed and the g-factors (g∥=0.2±0.1; g⊥=0.97±0.01) associated with the 4F3/2 lowest level are determined. |
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