#------------------------------------------------------------------------------
#$Date: 2011-07-27 22:52:00 +0000$
#$Revision: 001 $
#------------------------------------------------------------------------------
#
# This file is available in the Material Properties Open Database (MPOD),
# http://www.mpod.net/
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_1000280
_cod_database_code               2101499
_structure_refined 'no'
_phase_name 'diamond'
_phase_formula 'C'
_chemical_formula_sum 'C'
_symmetry_point_group_name_H-M 'm -3 m'
_cell_length_a  3.56658
_cell_length_b  3.56658
_cell_length_c  3.56658
_cell_angle_alpha  90
_cell_angle_beta   90
_cell_angle_gamma  90
loop_
_publ_author_name
'Ramachandran, G.N.'
_publ_section_title
;
 Photoelastic constants of diamond
;
_journal_name_full               'Proceedings of the Indian Academy of Sciences A'
_journal_volume                  25
_journal_issue                   ?
_journal_page_first              208
_journal_page_last               219
_journal_year                    1947
_phase_density ?
_prop_measurement_method 'Birefringence'
_prop_conditions_wavelength 0.5893
_prop_photoelastic_pij 'pij'
_prop_piezooptic_piij 'piij'
loop_
_prop_data_label
_prop_data_tensorial_index
_prop_data_value
pij 11 0.12(5)
pij 12 -0.32(5)
pij 13 -0.32(5)
pij 21 -0.32(5)
pij 22 0.12(5)
pij 23 -0.32(5)
pij 31 -0.32(5)
pij 32 -0.32(5)
pij 33 0.12(5)
pij 44 0.11
pij 55 0.11
pij 66 0.11
piij 11 42
piij 12 -36
piij 13 -36
piij 21 -36
piij 22 42
piij 23 -36
piij 31 -36
piij 32 -36
piij 33 42
piij 44 26
piij 55 26
piij 66 26