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International Conference on Solid State Crystals最新文献

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Growth and structure of strontium-doped LaGaO3 掺锶LaGaO3的生长与结构
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435870
R. Aleksiyko, M. Berkowski, J. Fink-Finowicki, P. Byszewski, R. Diduszko, E. Kowalska
{"title":"Growth and structure of strontium-doped LaGaO3","authors":"R. Aleksiyko, M. Berkowski, J. Fink-Finowicki, P. Byszewski, R. Diduszko, E. Kowalska","doi":"10.1117/12.435870","DOIUrl":"https://doi.org/10.1117/12.435870","url":null,"abstract":"A series of La1-xSrxGaO3 solid solution single crystal with x equals 0, 0.04 and 0.12 were grown by the Czochralski method and with x equals 0.01, 0.06 and 0.1 by the floating zone method. The segregation coefficient of Sr in LaGaO3 has been found to be keff (Sr) equals 1.25. The crystals were grown from the melt with stoichiometric Ga2O3 amount at a growth rate ranging from 2.5 mm/h for pure LaGaO3 to 1.2 mm/h for La0.88Sr0.12GaO3. The structure of these crystals was investigated by x- ray powder diffraction technique using CuK(alpha ) radiation. The diffraction patterns were analyzed by Rietveld refinement method. Crystals with strontium concentrations from x equals 0 to 0.1 crystallizes adopting Pbnm structure. It was found that deviation from the ideal perovskite structure decreases with rising strontium concentration, finally reaching centrosymmetric Ibmm structure at x equals 0.12. Orthorombic unit cell parameters c and b decreases whereas a increases with x. Thermal analysis proved that the temperature of the first order phase transition observed in pure LaGaO3 at 150 degrees falls to 126 degrees at x equals 0.01 and remains almost constant at higher x.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125220513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Energy transfer processes in (Lu,Gd)AlO3:Ce (Lu,Gd)AlO3:Ce中的能量传递过程
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435829
A. Wojtowicz, J. Mares
{"title":"Energy transfer processes in (Lu,Gd)AlO3:Ce","authors":"A. Wojtowicz, J. Mares","doi":"10.1117/12.435829","DOIUrl":"https://doi.org/10.1117/12.435829","url":null,"abstract":"In this paper, we present initial result of studies on energy transfer processes in Ce-activated Lu, Y and Gd aluminum perovskite crystals that contribute to production of scintillation light in these new scintillator materials. In particular we report and analyze emission spectra, excitation spectra, and emission time profiles under pulsed synchrotron excitation in the wavelength range of 50-300 nm.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123954774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Investigation of highly energetic transitions in some Pr3+-doped fluoride and oxide crystals 一些掺杂Pr3+的氟化物和氧化物晶体中高能跃迁的研究
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435833
I. Sókolska, S. Kueck, M. Bałuka
{"title":"Investigation of highly energetic transitions in some Pr3+-doped fluoride and oxide crystals","authors":"I. Sókolska, S. Kueck, M. Bałuka","doi":"10.1117/12.435833","DOIUrl":"https://doi.org/10.1117/12.435833","url":null,"abstract":"The excitation and emission spectra obtained for Pr3+:YAlO3, Pr3+:LiYF4 and K5PrLi2F10 crystals by means of high-energetic excitation with synchrotron radiation are presented. In the emission spectra broad, overlapping bands in UV range are present. Their positions, bandwidths as well as the short emission decay times suggest, that emission from levels of 4f5d configuration dominate in all of the crystal investigated.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128543724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Optical properties of some borate single crystals 某些硼酸盐单晶的光学性质
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435803
A. Majchrowski, T. Lukasiewicz, Z. Mierczyk, M. Malinowski
{"title":"Optical properties of some borate single crystals","authors":"A. Majchrowski, T. Lukasiewicz, Z. Mierczyk, M. Malinowski","doi":"10.1117/12.435803","DOIUrl":"https://doi.org/10.1117/12.435803","url":null,"abstract":"This paper describes efforts taken in Institute of Applied Physics and Institute of Electronic Materials Technology to obtain several single crystals from borate family, namely, CsLiB6)10, Ca4GdO(BO3)3, Li2B4O7, (beta) -BaB2O4, and Yal3(BO3)4, pure and doped with several ions. The main goal of this investigation was to develop technology of these new nonlinear optical materials to create possibility of their applications in higher harmonics generators and self- frequency doubling lasers. Depending on such properties of crystallized borate materials as incongruent melting or high temperature phase transitions, Czochralski technique or high temperature solution growth technique were used. The main aspects of crystallization of these materials as well as their optical properties are discussed.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129995115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
X-ray study of Nd:YAG on (111)-oriented Si obtained by pulsed laser deposition 脉冲激光沉积(111)取向Si上Nd:YAG的x射线研究
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435867
R. Rumianowski, R. Dygdala, F. Rozpłoch, A. Wojtowicz, M. Wisniewska, S. Kulesza
{"title":"X-ray study of Nd:YAG on (111)-oriented Si obtained by pulsed laser deposition","authors":"R. Rumianowski, R. Dygdala, F. Rozpłoch, A. Wojtowicz, M. Wisniewska, S. Kulesza","doi":"10.1117/12.435867","DOIUrl":"https://doi.org/10.1117/12.435867","url":null,"abstract":"Yttrium aluminium garnet thin films doped with neodymium have been prepared by Pulsed Laser Deposition method on (111)-oriented Si substrates. The substrate was heated up to temperature in the range between 200 and 600 degrees C. Obtained films were then characterized both by x-ray diffraction method using Siemens D5000 diffracto-meter and radioluminescence spectroscopy.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130028286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Gd3+-Yb3+ exchange interactions in LiYbxY1-xF4 single crystals LiYbxY1-xF4单晶中Gd3+-Yb3+交换作用
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435820
L. Misiak
{"title":"Gd3+-Yb3+ exchange interactions in LiYbxY1-xF4 single crystals","authors":"L. Misiak","doi":"10.1117/12.435820","DOIUrl":"https://doi.org/10.1117/12.435820","url":null,"abstract":"The evaluated Gd3+-Yb3+ exchange interactions over the nearest and the next-nearest neighbors in LiYbxY1-1F4 are found to increase in parabolic manner with x, the concentration of Yb3+ ions. The Gd3+-Yb3+ exchange interactions are sensitive to x in the range x equals 0.6-1.0, while they are almost constant in the range x- equals 0.1-0.5. The estimated Gd3+-Yb3+ exchange interaction constants are in the range 0.5-2.8 Ghz for x from 0.1 to 1, respectively. These exchange interaction constants are increased with lowering temperature. The results are comparable to those of estimated using the molecular-field model. The average Gd3+-Yb3+ pari exchange interaction constant is determined to be 0.33 Ghz in paramagnetically diluted LiYbxY1-xF4 crystals.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130175016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of pressure and magnetic field on the phase transitions in lanthanum-deficient manganites 压力和磁场对缺镧锰矿石相变的影响
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435842
V. Dyakonov, I. Fita, E. Zubov, V. Pashchenko, V. Mikhaylov, Yu. Bukhantsev, H. Szymczak
{"title":"Effect of pressure and magnetic field on the phase transitions in lanthanum-deficient manganites","authors":"V. Dyakonov, I. Fita, E. Zubov, V. Pashchenko, V. Mikhaylov, Yu. Bukhantsev, H. Szymczak","doi":"10.1117/12.435842","DOIUrl":"https://doi.org/10.1117/12.435842","url":null,"abstract":"We report on the pressure, field and temperature dependencies of magnetization and resistance in manganites of (La1-xCax)1-yMn1+y O3 type. The M(T) dependencies is established to exhibit the following peculiarities: the first is connected with the paramagnet (PM)-ferromagnet (FM) transition at 267 K; the peak of M(T) dependence eat 263K is presumable due to an existence of AFM clusters; an anomaly in magnetization is connected with the FM-canted phase transition at 42K and the large irreversibility in the field-cooled and zero field- cooled magnetization. As field is increased above 200 Oe, the sign of the M(T) anomaly changes, namely, the M(T) magnetization increases with increasing field at 42K. The character of M(T) dependencies does not change under pressure. However, both the Curie temperature, Tc, and the resistance peak corresponding to metal-insulator transition shift in the direction of high temperatures with increasing pressure. A pressure stabilizes the ferromagnetic metallic phase. The temperature of the FM-canting phase transition does not change under pressure. The magneto resistance effect increase by 15 percent under pressure of 12.6 kbar.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"4412 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131080056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optical properties of potassium erbium double-tungstate KEr(WO4)2 双钨酸铒钾KEr(WO4)2的光学性质
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435844
T. Zayarnyuk, M. Borowiec, V. Dyakonov, H. Szymczak, E. Zubov, A. Pavlyuk, M. Barański
{"title":"Optical properties of potassium erbium double-tungstate KEr(WO4)2","authors":"T. Zayarnyuk, M. Borowiec, V. Dyakonov, H. Szymczak, E. Zubov, A. Pavlyuk, M. Barański","doi":"10.1117/12.435844","DOIUrl":"https://doi.org/10.1117/12.435844","url":null,"abstract":"Results of spectroscopic investigations of crystalline potassium-erbium double tungstate Ker(WO4)2 are reported. The single crystal of Ker(WO4)2 were grown by Top Seeded Solution Growth technique. They belong to the chain-layered group of materials crystallizing in monoclinic syngony. The investigations were carried out in the broad spectral and temperature range. It was found that the potassium erbium double tungstate belong to the class of the diaxial crystals and it is a pleochroic. The main optical absorption spectra are determined.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125161681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Calculations of third-order electronic susceptibility of alkali halides 碱卤化物的三阶电子磁化率计算
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435819
W. Kucharczyk, Fray d. L. Castillo-Alvorado, P. Górski, R. Ledzion
{"title":"Calculations of third-order electronic susceptibility of alkali halides","authors":"W. Kucharczyk, Fray d. L. Castillo-Alvorado, P. Górski, R. Ledzion","doi":"10.1117/12.435819","DOIUrl":"https://doi.org/10.1117/12.435819","url":null,"abstract":"Hyper-Raman scattering by the zone-center optical phonons in some alkali halides is investigated. In our calculations we relate the electrooptic part of the hyper-Raman tensor to the third-order optical susceptibility and the electric field associated with the LO phonons. The result obtained for those alkali halides for which the third-order optical susceptibility has not been measured yet, show that the electrooptic and lattice contributions to the hyper-Raman scattering are comparable. In all crystals considered, we found the cubic anisotropy of the electrooptic part of the hyper-Raman tensor to be not strongly exhibited.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128034562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Crystal growth of new functional materials for electro-optical applications 用于光电应用的新型功能材料的晶体生长
International Conference on Solid State Crystals Pub Date : 2001-08-10 DOI: 10.1117/12.435821
T. Fukuda, K. Shimamura, A. Yoshikawa, E. Vı́llora
{"title":"Crystal growth of new functional materials for electro-optical applications","authors":"T. Fukuda, K. Shimamura, A. Yoshikawa, E. Vı́llora","doi":"10.1117/12.435821","DOIUrl":"https://doi.org/10.1117/12.435821","url":null,"abstract":"High quality fluoride and oxide single crystals for optical, piezoelectric and other applications have been grown by advanced crystal growth techniques. Corquitiite- and Perovskite-type fluoride single crystals - LiCaAlF6, LiSrAlF6, KmgF3 and BaLiF3 - have been grown for solid state UV laser applications, and as window materials for next generation optical lithography. La3Nb0.5Ga5.5O14 and La3Ta0.5Ga5.5O14 piezoelectric single crystal of size and quality comparable to La3Ga5SiO14, have been produced. The piezoelectric and deice properties of the crystal were investigated. A search for new langasite-type materials was also performed. Promising new structural materials. Undoped and doped eutectic fibers, have been grown by the micro- pulling-down technique. Undoped and doped(beta) -Ga2O3 single crystals have been grown by the floating zone technique as promising transparent conductive oxides.","PeriodicalId":365405,"journal":{"name":"International Conference on Solid State Crystals","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131104681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
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