-
3
-
-
0033595185
-
-
A. Zerr, G. Miehe, G. Serghiou, M. Schwarz, E. Kroke, R. Riedel, H. Fuess, P. Kroll, and R. Boehler, Nature (London) 400, 340 (1999);
-
(1999)
Nature (London)
, vol.400
, pp. 340
-
-
Zerr, A.1
Miehe, G.2
Serghiou, G.3
Schwarz, M.4
Kroke, E.5
Riedel, R.6
Fuess, H.7
Kroll, P.8
Boehler, R.9
-
6
-
-
0038890727
-
-
J. M. Leger, J. Haines, M. Schmidt, J. P. Petitet, A. S. Pereira, and J. A. H. Da Jornada, Nature (London) 383, 401 (1996);
-
(1996)
Nature (London)
, vol.383
, pp. 401
-
-
Leger, J.M.1
Haines, J.2
Schmidt, M.3
Petitet, J.P.4
Pereira, A.S.5
Da Jornada, J.A.H.6
-
10
-
-
0032660751
-
-
A. Govindaraj, E. Flahaut, C. Laurent, A. Peigney, A. Rousset, and C. N. R. Rao, J. Mater. Res. 14, 2567 (1999).
-
(1999)
J. Mater. Res
, vol.14
, pp. 2567
-
-
Govindaraj, A.1
Flahaut, E.2
Laurent, C.3
Peigney, A.4
Rousset, A.5
Rao, C.N.R.6
-
12
-
-
0027552622
-
-
G. Gusmano, G. Montesperelli, E. Traversa, and G. Mattogno, J. Am. Ceram. Soc. 76, 743 (1993).
-
(1993)
J. Am. Ceram. Soc
, vol.76
, pp. 743
-
-
Gusmano, G.1
Montesperelli, G.2
Traversa, E.3
Mattogno, G.4
-
13
-
-
4244126310
-
-
A. Larbot, G. Philip, M. Persin, and L. Cot, Key Eng. Mater. 132-136, 1719 (1997).
-
(1997)
Key Eng. Mater
, vol.132-136
, pp. 1719
-
-
Larbot, A.1
Philip, G.2
Persin, M.3
Cot, L.4
-
21
-
-
0000459634
-
-
H. Cynn, S. J. Sharma, T. F. Cooney, and M. Nicol, Phys. Rev. B 45, 500 (1992).
-
(1992)
Phys. Rev. B
, vol.45
, pp. 500
-
-
Cynn, H.1
Sharma, S.J.2
Cooney, T.F.3
Nicol, M.4
-
23
-
-
36149023417
-
-
G. A. Slack, Phys. Rev. 134A, 1268 (1964).
-
(1964)
Phys. Rev
, vol.134 A
, pp. 1268
-
-
Slack, G.A.1
-
29
-
-
0003749418
-
-
Cambridge University Press, Cambridge
-
B. Lawn, Fracture of Brittle Solids (Cambridge University Press, Cambridge, 1993);
-
(1993)
Fracture of Brittle Solids
-
-
Lawn, B.1
-
36
-
-
85038302247
-
-
The Mg mass used was 24.305 a.m.u., corresponding to the natural mixture of the isotopes
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The Mg mass used was 24.305 a.m.u., corresponding to the natural mixture of the isotopes.
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38
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85038338834
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This procedure yields a (formula presented) matrix of longitudinal interatomic force constants (all three species can experience forces due to displacements of planes with all three kinds of species). This information is overcomplete, as a knowledge of (formula presented) and two of the Born charges completely determines all nine force constants. The (formula presented) matrix is symmetrized observing the constraints resulting from this requirement
-
This procedure yields a (formula presented) matrix of longitudinal interatomic force constants (all three species can experience forces due to displacements of planes with all three kinds of species). This information is overcomplete, as a knowledge of (formula presented) and two of the Born charges completely determines all nine force constants. The (formula presented) matrix is symmetrized observing the constraints resulting from this requirement.
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-
-
-
40
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0000824211
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-
A. M. Rappe, K. M. Rabe, E. Kaxiras, and J. D. Joannopoulos, Phys. Rev. B 41, 1227 (1990).
-
(1990)
Phys. Rev. B
, vol.41
, pp. 1227
-
-
Rappe, A.M.1
Rabe, K.M.2
Kaxiras, E.3
Joannopoulos, J.D.4
-
44
-
-
85038290598
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-
G. Kresse (unpublished)
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G. Kresse (unpublished).
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-
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47
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85038342600
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The cell choice 1 of International Tables for Crystallography (Ref. 9) was used
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The cell choice 1 of International Tables for Crystallography (Ref. 9) was used.
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-
-
50
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85038317724
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The four LO modes are linear combinations of the four “missing” TO modes. It is possible, however, to assign each TO mode to a specific LO mode by slowly “switching on” the corrections for the LO-TO splitting, and noting which TO mode develops from which LO mode. Assignments in Table III have been made accordingly
-
The four LO modes are linear combinations of the four “missing” TO modes. It is possible, however, to assign each TO mode to a specific LO mode by slowly “switching on” the corrections for the LO-TO splitting, and noting which TO mode develops from which LO mode. Assignments in Table III have been made accordingly.
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