Bi,Ga:DyIG and Cu doped Bi,Ga:DyIG films on glass substrates have been prepared by the pyrolysis method,and their coercive force(H_(c))and compensation temperature were measured.An extremely high H_(c) value of 13kOe ...Bi,Ga:DyIG and Cu doped Bi,Ga:DyIG films on glass substrates have been prepared by the pyrolysis method,and their coercive force(H_(c))and compensation temperature were measured.An extremely high H_(c) value of 13kOe at room temperature was obtained in Cu doped Bi,Ga:DyIG films.展开更多
The Langmuir-Blodgett(LB)films of tetra-lauryl chloroaluminum phthalocyanine(TLAlCIPc)and a 1:1 mixture of TLAlCIPc and stearyl alcohol(SA)were prepared.The Raman spectrum of solid TLAlCIPc in KBr pellet was investiga...The Langmuir-Blodgett(LB)films of tetra-lauryl chloroaluminum phthalocyanine(TLAlCIPc)and a 1:1 mixture of TLAlCIPc and stearyl alcohol(SA)were prepared.The Raman spectrum of solid TLAlCIPc in KBr pellet was investigated.All the Raman lines were assigned.The surface-enhanced resonance Raman spectra of the LB films deposited on the silver island film that were vacuum-deposited on glass slides have been observed.展开更多
Single crystals of Sr_(3)Ga_(2)Ge_(4)O_(14):Cr are grown by the Czochralski method.The polarized optical absorption spectra of Cr in visible and near-infrared wavelength are presented and analyzed.It is suggested that...Single crystals of Sr_(3)Ga_(2)Ge_(4)O_(14):Cr are grown by the Czochralski method.The polarized optical absorption spectra of Cr in visible and near-infrared wavelength are presented and analyzed.It is suggested that Cr enters the octahedral and tetrahedral positions as Cr^(3+) and Cr^(4+)respectively.展开更多
The eye-beads dating to the early Warring States Period unearthed from Xu Jialing Tomb in Xichuan County of Henan Province, China are studied. The structure and the chemical composition of the sam- ples are analysed b...The eye-beads dating to the early Warring States Period unearthed from Xu Jialing Tomb in Xichuan County of Henan Province, China are studied. The structure and the chemical composition of the sam- ples are analysed by the undestructive methods of X-ray diffraction (XRD) and the Proton Induced X-ray Emission (PIXE) technique. The results show that these eye-beads are of glass state. Its chemical composition indicates that they belong to the glass of soda lime silicate system (Na2O-CaO-SiO2). By comparing the decorative design and the chemical composition of the samples with those from ancient Babylon and ancient Egypt, we think that these ancient eye-beads in Xichuan were most possibly im- ported from the West.展开更多
文摘Bi,Ga:DyIG and Cu doped Bi,Ga:DyIG films on glass substrates have been prepared by the pyrolysis method,and their coercive force(H_(c))and compensation temperature were measured.An extremely high H_(c) value of 13kOe at room temperature was obtained in Cu doped Bi,Ga:DyIG films.
文摘The Langmuir-Blodgett(LB)films of tetra-lauryl chloroaluminum phthalocyanine(TLAlCIPc)and a 1:1 mixture of TLAlCIPc and stearyl alcohol(SA)were prepared.The Raman spectrum of solid TLAlCIPc in KBr pellet was investigated.All the Raman lines were assigned.The surface-enhanced resonance Raman spectra of the LB films deposited on the silver island film that were vacuum-deposited on glass slides have been observed.
文摘Single crystals of Sr_(3)Ga_(2)Ge_(4)O_(14):Cr are grown by the Czochralski method.The polarized optical absorption spectra of Cr in visible and near-infrared wavelength are presented and analyzed.It is suggested that Cr enters the octahedral and tetrahedral positions as Cr^(3+) and Cr^(4+)respectively.
基金Supported by the National Natural Science Foundation of China (Grant No. 50672106)the Intellectual Innovation Project of the Chinese Academy of Sci-ences (Grant No. KJCX3-SYW.No.12)
文摘The eye-beads dating to the early Warring States Period unearthed from Xu Jialing Tomb in Xichuan County of Henan Province, China are studied. The structure and the chemical composition of the sam- ples are analysed by the undestructive methods of X-ray diffraction (XRD) and the Proton Induced X-ray Emission (PIXE) technique. The results show that these eye-beads are of glass state. Its chemical composition indicates that they belong to the glass of soda lime silicate system (Na2O-CaO-SiO2). By comparing the decorative design and the chemical composition of the samples with those from ancient Babylon and ancient Egypt, we think that these ancient eye-beads in Xichuan were most possibly im- ported from the West.
