Table 1.

Nominal composition, lanthanide content, mass density, molar mass, and molar volume of the BaB glasses investigated. The experimental error of the density values amounts to $\pm 0.005 \mathrm{g}/\mathrm{c}{\mathrm{m}}^3$.

Composition in mol%				La${}^{3+}$ Content in at.%		Mass Density	Molar Mass	Molar Volume
B ${}_{\mathbf{2}}$ O ${}_{\mathbf{3}}$	BaO	Dy ${}_{\mathbf{2}}$ O ${}_{\mathbf{3}}$	Tb ${}_{\mathbf{4}}$ O ${}_{\mathbf{7}}$	Dy ${}^{\mathbf{3}+}$	Tb ${}^{\mathbf{3}+}$	In g/cm ${}^{\mathbf{3}}$	In g/mol	In cm ${}^{\mathbf{3}}$
79.60	19.90	0.5	–	0.23	–	2.906	187.79	30.21
78.80	19.70	0.5	1.0	0.22	0.90	3.088	194.41	30.57
78.00	19.50	0.5	2.0	0.22	1.76	3.281	101.02	30.79
77.20	19.30	0.5	3.0	0.22	2.61	3.491	107.63	30.83
79.44	19.86	0.7	–	0.32	–	2.895	188.37	30.53
78.64	19.66	0.7	1.0	0.31	0.89	3.112	194.98	30.52
77.84	19.46	0.7	2.0	0.31	1.76	3.305	101.59	30.74
77.04	19.26	0.7	3.0	0.30	2.61	3.496	108.21	30.96
79.20	19.80	1.0	–	0.45	–	2.928	189.23	30.47
78.40	19.60	1.0	1.0	0.45	0.89	3.145	195.84	30.47
77.60	19.40	1.0	2.0	0.44	1.76	3.357	102.45	30.52
76.80	19.20	1.0	3.0	0.43	2.61	3.513	109.07	31.04
79.99	20.00	–	0.01	–	0.009	2.824	186.43	30.61
79.20	19.80	–	1.0	–	0.90	3.035	192.97	30.63
78.40	19.60	–	2.0	–	1.77	3.236	199.59	30.77
77.60	19.40	–	3.0	–	2.61	3.446	106.20	30.82