Strong-Gravity Experiments on Perovskite-Type Oxides

2014 ◽  
Vol 88 ◽  
pp. 70-73
Author(s):  
Makoto Tokuda ◽  
Khandaker Jahirul Isram ◽  
Yudai Ogata ◽  
Yoji Mine ◽  
Tadao Nishiyama ◽  
...  
Keyword(s):  
Colossal Magnetoresistance ◽  
Crystalline State ◽  
Condensed Matter ◽  
Floating Zone ◽  
Magnetoresistance Effect ◽  
Oriented Crystal ◽  
Zone Method ◽  
Crystal Direction ◽  
Strong Gravity ◽  
Perovskite Type

Strong gravitational field causes the displacement or/and sedimentation of atoms in solids, by which we can changes the crystalline state or/and composition in multicomponent condensed matter. Perovskite-type doped manganite, La1-xSrxMnO3(LSMO) has unique magnetoresistance effect which is called “colossal magnetoresistance (CMR)”. In this study, the strong gravity experiment (0.40x106G, 400°C, 20h) was performed on the LSMO oriented crystal to examine the change in composition or structure. The LSMO crystal whose growing crystal direction is normal to (214) plane was prepared by the floating zone method. The EPMA and XRD results of the gravity sample revealed that the La compositions decrease in the crystal grain, while the structure did not change much. The SQUID analysis showed that the magnetic property of the gravity sample had changed.

scholarly journals Colossal magnetoresistance effect in the perovskite-type La1－xPrxMnO3 thin films

2006 ◽  
Vol 55 (3) ◽  
pp. 1441
Author(s):  
Duan Ping ◽  
Chen Zheng-Hao ◽  
Dai Shou-Yu ◽  
Zhou Yue-Liang ◽  
Lyu Hui-Bin
Keyword(s):  
Thin Films ◽  
Colossal Magnetoresistance ◽  
Magnetoresistance Effect ◽  
Colossal Magnetoresistance Effect ◽  
Perovskite Type

Colossal magnetoresistance effect in perovskite-type La–Sn–Mn–O epitaxial films

1999 ◽  
Vol 75 (21) ◽  
pp. 3378-3380 ◽  
Author(s):  
Xiangxin Guo ◽  
Shouyu Dai ◽  
Yueliang Zhou ◽  
Guozhen Yang ◽  
Zhenghao Chen
Keyword(s):  
Colossal Magnetoresistance ◽  
Epitaxial Films ◽  
Magnetoresistance Effect ◽  
Colossal Magnetoresistance Effect ◽  
Perovskite Type

scholarly journals Colossal magnetoresistance effect in the perovskite-type La0.9Sb 0.1MnO3 material

2003 ◽  
Vol 52 (8) ◽  
pp. 2061
Author(s):  
Duan Ping ◽  
Tan Guo-Tai ◽  
Dai Shou-Yu ◽  
Chen Zheng-Hao ◽  
Zhou Yue-Liang ◽  
...  
Keyword(s):  
Colossal Magnetoresistance ◽  
Magnetoresistance Effect ◽  
Colossal Magnetoresistance Effect ◽  
Perovskite Type

Defect Optical and Scintillation Properties of Lu2Si2O7:Ce Single Crystal Grown by Floating Zone Method

2013 ◽  
Vol 28 (8) ◽  
pp. 891-895
Author(s):  
He FENG ◽  
Guo-Hao REN ◽  
Dong-Zhou DING ◽  
Huan-Ying LI ◽  
Jun XU ◽  
...  
Keyword(s):  
Single Crystal ◽  
Floating Zone ◽  
Zone Method ◽  
Floating Zone Method

Pressure-tuned colossal magnetoresistance effect in n-type CdCr2Se4

2021 ◽  
Vol 118 (26) ◽  
pp. 262407
Author(s):  
Bowen Zhang ◽  
Chuanchuan Gu ◽  
Chao An ◽  
Xuliang Chen ◽  
Yonghui Zhou ◽  
...  
Keyword(s):  
Colossal Magnetoresistance ◽  
Magnetoresistance Effect ◽  
Colossal Magnetoresistance Effect

Photoluminescence, scintillation and thermoluminescence properties of Ce-doped SrLaAl3O7 crystals synthesized by the optical floating zone method

2021 ◽  
Vol 112 ◽  
pp. 110782
Author(s):  
Kenta Igashira ◽  
Daisuke Nakauchi ◽  
Takumi Kato ◽  
Noriaki Kawaguchi ◽  
Takayuki Yanagida
Keyword(s):  
Floating Zone ◽  
Zone Method ◽  
Floating Zone Method

scholarly journals Single-Crystal Growth of Sr2RuO4 by the Floating-Zone Method Using an Infrared Image Furnace with Improved Halogen Lamps

Crystals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 392
Author(s):  
Naoki Kikugawa ◽  
Dmitry A. Sokolov ◽  
Tohru Nagasawa ◽  
Andrew P. Mackenzie
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Infrared Image ◽  
Single Crystal Growth ◽  
Molten Zone ◽  
Floating Zone ◽  
Unconventional Superconductor ◽  
Zone Method ◽  
Floating Zone Method ◽  
Halogen Lamps

We report the single-crystal growth of the unconventional superconductor Sr2RuO4, on which research has reached a turning point recently. In order to optimize the quality of crystals grown by the floating-zone method using an infrared image furnace, we focus on an improvement of the structure of the filament in the halogen lamps. By reducing the thickness of the total filament, the form of the molten zone was narrowed. More importantly, the molten zone was observed to be more stable during the growth process. Finally, we obtained the crystals with a length of 12 cm. Additionally, the grown crystal has high quality, displaying the 1.5 K transition temperature expected only for the purest crystals. We also discuss the availability of the newly developed halogen lamps.

scholarly journals Hall Effects of Rutile Crystals Grown by the Floating Zone Method

1991 ◽  
Vol 32 (9) ◽  
pp. 879-881 ◽  
Author(s):  
Shin Tsunekawa ◽  
Hiroshi Machida ◽  
Masashi Suezawa ◽  
Tsuguo Fukuda
Keyword(s):  
Floating Zone ◽  
Zone Method ◽  
Floating Zone Method ◽  
Hall Effects
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