TY  - JOUR 
T1  - Photo-induced dipole relaxation current in natural Amethyst
JO  - Materials Research
A1  - Russo, Fabricio Trombini
A1  - Scalvi, Rosa Maria Fernandes
A1  - Scalvi, Luis Vicente de Andrade
A1  - Vismara, Marcus Vinicius Gonçalves
SN  - 1516-1439
UL  - 10.1590/S1516-14392012005000052
VL  - 15 
Y1  - 2012
PB  - Brasil 
ER  -