TY - JOUR
T1 - Synthesis of chain-type SrCuO2 by laser irradiation on sputtered layer-type SrCuO2 film
AU - Terakado, Nobuaki
AU - Takahashi, Ryosuke
AU - Takahashi, Yoshihiro
AU - Fujiwara, Takumi
N1 - Funding Information:
This work was supported by the Ministry of Education, Culture, Sports, Science and Technology of the Japanese Government ( 15K18208 ). The authors would like to thank Ms. Mana Nemoto in the Department of Instrumental Analysis, School of Engineering, Tohoku University, for the Raman spectroscopy.
Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2016/3/31
Y1 - 2016/3/31
N2 - We prepared SrCuO2 film by radio-frequency magnetron sputtering on silica glass and have investigated structure change induced by super-band-gap light. An X-ray diffraction pattern shows that the as-sputtered film is composed of (001)-oriented SrCuO2 nanothick crystals belonging to tetragonal system, i.e., the layer-type SrCuO2. Raman-scattering spectra show that irradiation of high-power super-band-gap laser light onto the film gives rise to structure change into orthorhombic system, i.e., the chain type SrCuO2, which is known to exhibit high, anisotropic thermal conductivity due to spin interaction. A mechanism of the structure change is discussed in terms of photoexcitation and heating process.
AB - We prepared SrCuO2 film by radio-frequency magnetron sputtering on silica glass and have investigated structure change induced by super-band-gap light. An X-ray diffraction pattern shows that the as-sputtered film is composed of (001)-oriented SrCuO2 nanothick crystals belonging to tetragonal system, i.e., the layer-type SrCuO2. Raman-scattering spectra show that irradiation of high-power super-band-gap laser light onto the film gives rise to structure change into orthorhombic system, i.e., the chain type SrCuO2, which is known to exhibit high, anisotropic thermal conductivity due to spin interaction. A mechanism of the structure change is discussed in terms of photoexcitation and heating process.
KW - Laser-induced synthesis
KW - Raman scattering
KW - Spin-chain compound
KW - Spinon thermal conductivity
KW - Sputtering
KW - Strontium copper oxide
KW - Thermal management
KW - Thin film
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U2 - 10.1016/j.tsf.2016.02.035
DO - 10.1016/j.tsf.2016.02.035
M3 - Article
AN - SCOPUS:84959419455
SN - 0040-6090
VL - 603
SP - 303
EP - 306
JO - Thin Solid Films
JF - Thin Solid Films
ER -