Anomalies in the Magnetic Properties of Copper Impurity Clusters in Barium Fluoride Crystals

2005 ◽  
Vol 47 (9) ◽  
pp. 1655
Author(s):  
V. A. Ulanov
Keyword(s):  
Magnetic Properties ◽  
Barium Fluoride ◽  
Copper Impurity ◽  
Fluoride Crystals

scholarly journals Перенос электрона между разнородными лантаноидами в кристаллах BaF-=SUB=-2-=/SUB=- --- II механизмы переноса

2019 ◽  
Vol 61 (5) ◽  
pp. 888
Author(s):  
Е.А. Раджабов ◽  
В.А. Козловский
Keyword(s):  
Electron Transfer ◽  
Low Temperatures ◽  
Barium Fluoride ◽  
Absorption Bands ◽  
Thermal Electron ◽  
Thermal Transfer ◽  
Trivalent Lanthanide ◽  
Fluoride Crystals ◽  
Divalent Lanthanide ◽  
Thermal Electron Transfer

The processes of electron transfer from a divalent lanthanide acceptor (Eu, Sm, Yb) to a trivalent lanthanide donor (Nd, Sm, Dy, Tm, Yb) and reverse thermal transfer are studied in barium fluoride crystals. Electron phototransfer at room temperatures is accompanied by a counter-movement of the charge-compensating interstitial fluorine. In the process of photobleaching at low temperatures, the divalent lanthanide donor turns out to be near the interstitial fluorine, which causes its 4f-5d absorption bands to shift to the red. The magnitude of the shift increases with decreasing size of the lanthanide in the series (Nd, Sm, Dy, Tm, Yb). Detailed mechanisms of photo and thermal electron transfer between heterogeneous lanthanides in BaF2 crystals are analyzed.

Barium Fluoride Crystals for Future Hadron Colliders

1994 ◽  
Vol 348 ◽  
Author(s):  
Ren-yuan Zhu ◽  
Da-an Ma ◽  
Harvey Newman
Keyword(s):  
Radiation Resistance ◽  
Production Quality ◽  
Barium Fluoride ◽  
Electromagnetic Calorimeter ◽  
Hadron Colliders ◽  
Excellent Candidate ◽  
Current Production ◽  
Fluoride Crystals ◽  
Optical Bleaching

ABSTRACTThis report summarizes the radiation resistance of the current production BaF2 crystals. An approach to implement optical bleaching in situ is also presented. By using optical bleaching current production quality BaF2 crystals could serve as an excellent candidate to construct a precision electromagnetic calorimeter at future hadron colliders.

Radiation Damage of Rare Earth Ions Doped Barium Fluoride Crystals

1992 ◽  
pp. 809-815 ◽  
Author(s):  
G. Chen ◽  
H. Xiao ◽  
S. Q. Man ◽  
J. Q. Zhang ◽  
S. X. Ren
Keyword(s):  
Rare Earth ◽  
Radiation Damage ◽  
Rare Earth Ions ◽  
Barium Fluoride ◽  
Fluoride Crystals

Radiation Damage in Large Barium Fluoride Crystals

1992 ◽  
pp. 801-808 ◽  
Author(s):  
P. J. Li ◽  
Y. Y. Xie ◽  
Y. L. Zhao ◽  
Z. W. Yin
Keyword(s):  
Radiation Damage ◽  
Barium Fluoride ◽  
Fluoride Crystals
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