#------------------------------------------------------------------------------
#$Date: 2010-10-13 07:59:00 +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_1000094
_cod_database_code 9008860
_structure_refined 'no'
_phase_name 'Aluminum nitride'
_phase_formula AlN
_chemical_formula_sum 'Al N'
_symmetry_point_group_name_H-M '6mm'
_cell_length_a 3.111
_cell_length_c 4.978
loop_
_publ_author_name
'Bu, G.'
'Ciplys, D.'
'Shur, M.'
'Schowalter, L.J.'
'Schulman, S.'
'Gaska, R.'
_publ_section_title
;
 Electromechanical coupling coefficient for surface acoustic waves in single-crystal bulk aluminum nitride
;
_journal_name_full               'Applied Physics Letters'
_journal_volume                  84
_journal_issue                   23
_journal_page_first              4611
_journal_page_last               4613
_journal_year                    2004

_phase_density 3260
_prop_frame '1=[100] 2=[1-20] 3=[001]'
_prop_measurement_method 'SAW'
_prop_measurement_poling '?'
_prop_piezoelectric_dij 'dij'
_prop_piezoelectric_eij 'eij'

loop_
_prop_data_label
_prop_data_tensorial_index
_prop_data_value
eij 15 -0.29(6)
eij 24 -0.29(6)
eij 31 -0.58(23)
eij 32 -0.58(23)
eij 33 1.39(22)
dij 15 -2.42(50)
dij 24 -2.42(50)
dij 31 -1.88(57)
dij 32 -1.88(57)
dij 33 4.53(86)