Ffraction ((Cu ((Cu k-) measurements of theC sample (with no a carbon
Ffraction ((Cu ((Cu k-) measurements of theC sample (devoid of a carbon a carbon anti-diffusion barrier), the obtained interface La/B4 La/B4 C sample (with out anti-diffusion barrier), the obtained interface parameters parameters are thickness period d = 3.35 nm, plus the portionthe La inside the period the is dLa/d are as follows; as follows; thickness period d = 3.35 nm, and of portion of La in La period La is the /d = 0.five. the La-on-B4of transitional area is 0.75 nm, andis 0.75 nm, as well as the = 0.five. dLa width on the width C the La-on-B4 C transitional area the B4C-on-La area B4 C-on-La region is 0.35of the The densities La the materialsand B4C = 1.8 g cm (for the is 0.35 nm. The densities nm. supplies are of = five.40 g cm are La = five.40 g cm and B4C = 1.eight g cm La =the tabulated values La = 6.17 g cm and B4C = two.0 g cm ). The tabulated values (for 6.17 g cm and B4C = 2.0 g cm). The theoretical calculation also theoretical calculation reflectivity ofthat the peak reflectivity parameters in the precisely the same proved that the peak also proved a mirror using the same of a mirror with 6.661 nm parameters at the 6.661 nm wavelength ought to be 40 . wavelength should be 40 .Figure eight. Angular dependence of reflectivity of (a) the La/B4C, and (b) La/B C/C PMMs taken in the Figure eight. Angular dependence of reflectivity of (a) the La/B4 C, and (b) La/B44C/C PMMs taken inside the spectral array of 6.6.9 nm wavelengths. Reprinted from [32] with permission of of Publishing. spectral range of 6.six.9 nm wavelengths. Reprinted from [32] with thethe permissionAIPAIP Publishing.Nitridation of Lanthanum Primarily based PMMs Nitridation of Lanthanum Primarily based PMMs Interfaces in PMMs, for example B4 C/La optics for B-K reflectivity ( = 6.65 nm), have been Interfaces go PMMs, as an example B4C/La optics for B-K reflectivityformation through shown to in through surface isolation and exothermic interlayer ( = 6.65 nm), PHA-543613 Purity happen to be shown to go 3LaC2 surface isolation and exothermic interlayer formation through 7La6B4 C4LaB6through [54]. Furthermore, vapor/sputter deposition of B4 C happens in 7La6B4 B and C 3LaC [54]. Additionally, vapor/sputter deposition of B4C happens in sepseparateC4LaB6atoms 2[54,55], enhancing the B4 C-on-La interface reactivity. Thus, arate B and C atoms [54,55], enhancing the B4 inactive and higher Methyl jasmonate custom synthesis contrast interfaces, which nitridation is employed to achieve chemicallyC-on-La interface reactivity. Hence, nitriare important in PMMs structures. dation is employed to attain chemically inactive and high contrast interfaces, that are Looking at the formation important in PMMs structures. enthalpy (Hfor ), absorption constant , and refractive index (n) at in the formation enthalpy (Hfordescribed in Table 2 [56], and refractive inLooking = six.65 nm from the compounds ), absorption continual , it truly is shown that the passivation on the B4 C/La interface is often achieved by nitridation, which leads the dex (n) at = 6.65 nm with the compounds described in Table two [56], it can be shown that to enhanced reflectivity.C/La interfacenitridation can repress roughening via grain formapassivation of the B4 Moreover, is often achieved by nitridation, which results in enfor tion [57] reflectivity. Inat higher temperatures. The values of roughening by means of grain B4 C/LaN hanced and diffusion addition, nitridation can repress H recommend that the formation for suggest that the B6C/LaN and and BN/LaN interfaces are chemically dormant and will not be impacted by LaB4 and LaC2 [57] and diffusion at higher temperatures. The.