Zobrazeno 1 - 10
of 2 126
pro vyhledávání: '"Boatner, L. A."'
Autor:
Stock, C., Gehring, P. M., Xu, G., Lamago, D., Reznik, D., Russina, M., Wen, J., Boatner, L. A.
Publikováno v:
Phys. Rev. B 90, 224302 (2014)
We report neutron scattering measurements of the structural correlations associated with the apparent relaxor transition in K$_{1-x}$Li$_x$TaO$_3$ for $x=0.02$ (KLT(0.02)). This compound displays a broad and frequency-dependent peak in the dielectric
Externí odkaz:
http://arxiv.org/abs/1505.05439
Autor:
Boatner, L. A., Finch, C. B., Brundage, W. E., Kolopus, J. A., Gruzalski, G. R., Johanns, K. E., Sudharshan Phani, P., Pharr, G. M., Oliver, W. C.
Publikováno v:
Journal of Applied Physics; 3/7/2023, Vol. 133 Issue 9, p1-9, 9p
We report the observation of a "transparency window" in the dielectric resonant absorption spectrum of the relaxor ferroelectric K1-xLixTaO3 (KLT) in the vicinity of its weakly first order transition. This phenomenon is shown to be conceptually simil
Externí odkaz:
http://arxiv.org/abs/1203.2639
Autor:
Wen, Jinsheng, Xu, Guangyong, Stock, C., Gehring, P. M., Zhong, Z., Boatner, L. A., Venturini, E. L., Samara, G. A.
Publikováno v:
Phys. Rev. B 78, 144202 (2008)
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 value below which no structural phase transitions hav
Externí odkaz:
http://arxiv.org/abs/0806.4908
Autor:
Wakimoto, S., Samara, G. A., Grubbs, R. K., Venturini, E. L., Boatner, L. A., Xu, G., Shirane, G., Lee, S. -H.
Publikováno v:
Phys. Rev. B 74, 054101 (2006)
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 dielectric measurements revealed Debye-like relaxations wit
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608074
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 basis of new high-resolution neutron data obtained
Externí odkaz:
http://arxiv.org/abs/cond-mat/0009011
Publikováno v:
Physica B, 276 (2000) 274
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 phonon-density fluctuation processes. A parameterisation
Externí odkaz:
http://arxiv.org/abs/cond-mat/0009012
Publikováno v:
Eur. Phys. Jour. B, 15, 615 (2000)
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 K. Additional off-principal axis measurements were
Externí odkaz:
http://arxiv.org/abs/cond-mat/0009009
Autor:
Haseman, M., Somodi, C. B., Stepanov, P., Wall, D. E., Boatner, L. A., Hosemann, P., Wang, Y. Q., Uberuaga, B. P., Selim, F. A.
Publikováno v:
Journal of Applied Physics; 6/7/2021, Vol. 129 Issue 21, p1-7, 7p
Autor:
Sales, B. C., Boatner, L. A.
Publikováno v:
Science, 1984 Oct 01. 226(4670), 45-48.
Externí odkaz:
https://www.jstor.org/stable/1693821