TY - JOUR
T1 - Heteroepitaxial growth of metastable ErF3 on AaF2(1 1 1) by molecular beam epitaxy
T2 - A novel material for optical upconversion
AU - Inaba, K.
AU - Adachi, K.
AU - Yao, T.
AU - Uda, S.
AU - Kasuya, A.
AU - Taniuchi, T.
AU - Fukuda, T.
PY - 1997/8
Y1 - 1997/8
N2 - The heteroepitaxial growth of hexagonal ErF3 onto CaF2(1 1 1) substrates using the molecular beam epitaxy (MBE) method is reported for the first time. Results of the X-ray rocking-curve (XRC) analyses showed the presence of the epitaxial relationship as (0 0 0 1)ErF3∥(1 1 1)CaF2. Reflection high-energy electron diffraction (RHEED) investigation suggests the growth of hexagonal metastable ErF3 with the epitaxial relationship of (0 0 0 1)ErF3∥(1 1 1)CaF2, (0 1 1 0)ErF3∥(1 1 2)CaF2, (2 1 1 0)ErF3∥(0 1 1)CaF2. Detailed analysis of RHEED pattern elucidates that the metastable ErF3 has the space group setting of P63/mmc, and among the several models proposed for LaF3-type structure, this setting is the unique one which is consistent with the observation of RHEED patterns. The up-conversion property of ErF3 for green-light emission (λ = 538 nm) pumped by an AlGaAs diode laser (λ = 798 nm) is investigated.
AB - The heteroepitaxial growth of hexagonal ErF3 onto CaF2(1 1 1) substrates using the molecular beam epitaxy (MBE) method is reported for the first time. Results of the X-ray rocking-curve (XRC) analyses showed the presence of the epitaxial relationship as (0 0 0 1)ErF3∥(1 1 1)CaF2. Reflection high-energy electron diffraction (RHEED) investigation suggests the growth of hexagonal metastable ErF3 with the epitaxial relationship of (0 0 0 1)ErF3∥(1 1 1)CaF2, (0 1 1 0)ErF3∥(1 1 2)CaF2, (2 1 1 0)ErF3∥(0 1 1)CaF2. Detailed analysis of RHEED pattern elucidates that the metastable ErF3 has the space group setting of P63/mmc, and among the several models proposed for LaF3-type structure, this setting is the unique one which is consistent with the observation of RHEED patterns. The up-conversion property of ErF3 for green-light emission (λ = 538 nm) pumped by an AlGaAs diode laser (λ = 798 nm) is investigated.
KW - Mbe; fluoride
KW - Metastable growth
KW - Up-conversion
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U2 - 10.1016/S0022-0248(97)00151-6
DO - 10.1016/S0022-0248(97)00151-6
M3 - Article
AN - SCOPUS:0031206833
SN - 0022-0248
VL - 179
SP - 488
EP - 494
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 3-4
ER -