The effect of local dipole moments on the structure and lattice dynamics of K0.98Li0.02TaO3 (2008)
Wen, Jinsheng, Xu, Guangyong, Stock, C., Gehring, P. M., Zhong, Z., Boatner, L. A., ...
We present high energy x-ray (67 keV) and neutron scattering measurements on a single crystal of K$_{1-x}$Li$_x$TaO$_3$ for which the Li content ($x=0.02$) is less than $x_c = 0.022$, the critical...
Low energy phonon spectrum and its parameterization in pure KTaO3 below 80 K (2006)
Farhi, E., Tagantsev, A. K., Currat, R., Hehlen, B., Courtens, E., Boatner, L. A.
High resolution data on low energy phonon branches (acoustic and soft optic) along the three principal symmetry axes in pure KTaO3 were obtained by cold neutron inelastic scattering between 10 and 80...
Farhi, E., Tagantsev, A. K., Hehlen, B., Currat, R., Boatner, L. A., Courtens, E.
Low-T Brillouin spectra of the incipient ferroelectric KTaO3 exhibit a broad central peak (CP), and additional Brillouin doublets (BD), that can both be related to phonon-density fluctuations. On the...
The broad Brillouin doublets and central peak of KTaO3 (2006)
Farhi, E., Tagantsev, A. K., Hehlen, B., Currat, R., Boatner, L. A., Courtens, E.
The incipient ferroelectric KTaO3 presents low-T Brillouin spectra anomalies, e.g. a broad central peak (CP), and some additional Brillouin doublets (BD). whose origin are interpreted in terms of...
Dielectric properties and lattice dynamics of Ca-doped K$_{0.95}$Li$_{0.05}$TaO$_{3}$ (2006)
Wakimoto, S., Samara, G. A., Grubbs, R. K., Venturini, E. L., Boatner, L. A., Xu, G., ...
Relaxor behavior and lattice dynamics have been studied for a single crystal of K$_{1-x}$Li$_x$TaO$_3$ $(x=0.05)$, where a small amount of a Ca impurity ($\sim 15$~ppm) was incorporated. The...
Preparation and compaction of synthetic monazite powders (2005)
Abraham, M. M., Boatner, L. A., Quinby, T. C., Thomas, D. K., Rappaz, M.
Monazite and other lanthanide orthophosphates as alternate actinide waste forms (2005)
Boatner, L. A., Beall, G. W., Abraham, M. M., Finch, C. B., Huray, P. G., Rappaz, M.
EPR investigations of impurities in the lanthanide orthophosphates (2005)
Abraham, M. M., Boatner, L. A., Rappaz, M., Kaufmann, E. N., Shenoy, G. K.
Lanthanide orthophosphates for the primary immobilization of actinide wastes (2005)
Boatner, L. A., Beall, G. W., Abraham, M. M., Finch, C. B., Floran, R. J., Huray, P. G., ...
A review of research on analogs of monazite for the isolation of actinide wastes (2005)
Abraham, M. M., Boatner, L. A., Beall, G. W., Finch, C. B., Floran, R. J., Huray, P. G., ...
Analysis of microstructural development in single crystal welds (2005)
Rappaz, M., David, S. A., Vitek, J. M., Boatner, L. A., David, S. A., Vitek, J. M.
Modeling of Single-Crystal Laser Weld Microstructures (2005)
Vitek, J. M., Zacharia, T., David, S. A., Rappaz, M., Boatner, L. A., Mazumder, J.
Analysis of Ripple Formation in Single Crystal Spot Welds (2005)
Rappaz, M., Corrigan, D., Boatner, L. A., Thomas, B., Beckermann, C.
4fn-¹ 5d-4fn emission of Ce³+, Pr³+, Nd³+, Er³+, and Tm³+ in LiYF4 and YPO4 (2005)
Peijzel, P.S., Vergeer, P., Meijerink, A., Reid, M.F., Boatner, L.A., Burdick, G.W.
High-resolution 4fn−15d->4fn emission spectra in the svacuumd ultraviolet are reported for Ce3+, Pr3+, Nd3+, Er3+, and Tm3+ in LiYF4 and YPO4 host lattices. The positions and intensities of the...
Evidence for Antiferroelectric Behavior in KNbO3/KTaO3 Superlattices (2003)
Sigman, J., Christen, H. M., Fleming, P. H., Boatner, L. A., Norton, D. P.
The dielectric response in artificially layered 1x1 KTaO3/KNbO3 perovskite superlattice structures is reported. While KTaO3 and KNbO3 are ferroelectric or paraelectric, respectively, superlattices...
Low energy phonon spectrum and its parameterization in pure KTaO3 under 80 K (2000)
Farhi, E., Tagantsev, A. K., Currat, R., Hehlen, B., Courtens, E., Boatner, L. A.
High resolution data on low energy phonon branches (acoustic and soft optic) along the three principal symmetry axes in pure KTaO3 were obtained by cold neutron inelastic scattering between 10 and 80...
Farhi, E., Tagantsev, A. K., Hehlen, B., Currat, R., Boatner, L. A., Courtens, E.
Low-T Brillouin spectra of the incipient ferroelectric KTaO3 exhibit a broad central peak (CP), and additional Brillouin doublets (BD), that can both be related to phonon-density fluctuations. On the...
The broad Brillouin doublets and central peak of KTaO_3 (2000)
Farhi, E., Tagantsev, A. K., Hehlen, B., Currat, R., Boatner, L. A., Courtens, E.
The incipient ferroelectric KTaO3 presents low-T Brillouin spectra anomalies,e.g. a broad central peak (CP), and some additional Brillouin doublets (BD), whose origin is interpreted in terms of...
THE EXTRA BRILLOUIN DOUBLETS AND CENTRAL PEAK OF KTaO (2000)
E. Farhi, B. Hehlen, R. Currat, L. A. Boatner, E. Courtens
Low-T Brillouin spectra of the incipient ferroelectric KTaO 3 exhibit a broad central peak (CP), and additional Brillouin doublets (BD), that can both be related to phonon-density fluctuations. On...
Low energy phonon spectrum and its parameterization in pure KTaO 3 under 80 K (2000)
Ktao Under K, E. Farhi, A. K. Tagantsev, R. Currat, B. Hehlen, E. Courtens, ...
. High resolution data for low energy dispersion branches, acoustic and soft mode, along the three principal symmetry axes of pure KTaO3 are obtained by inelastic neutron scattering between 10 and 80...
Ion irradiation effects in nonmetals: formation of nanocrystals and novel microstructures (2000)
Meldrum, A., Boatner, L. A., White, C. W.
Ion implantation is a versatile and powerful technique for producing nanocrystal precipitates embedded in the near-surface region of materials. Radiation effects that occur during the implantation...
Microstructure of Stainless Steel Single-Crystal Electron Beam Welds. (1998)
David, S. A., Vitek, J. M., Rappaz, M., Boatner, L. A.
Previously developed techniques for the microstructural analysis of welds, that included the effects of both the growth crystallography and the weld pool shape, are applied to several cases involving...
Rankin, J., McCallum, J. C., Boatner, L. A.
Time-resolved reflectivity and the Rutherford backscattering spectroscopy were used to investigate the effects of regrowth environments on the thermally induced solid phase epitaxial (SPE) regrowth...