摘要:

We have constructed a7 × 7square Ewing lattice which can be symmetrically dilated. The breaking of the dilatational invariance of dipole interactions by octupole admixtures can be explicitly demonstrated. The discontinuous structural transitions associated with this symmetry breaking permit us to assign a sharply defined rnge to the octupole forces. We have shown by a combination of experimental, analytical, and digital computer methods that the range of the octupole forces increases with extreme rapidity as the complexity of the arrays is augmented. We conjecture that large Ewing arrays cannot be structurally stabilized solely by dipole interactions, and that the “compulsory” intervention of dilatationary non‐invariant forces is the origin of the intrinsic scales of length which are associated with domain structure.

ISSN:0094-243X    

DOI:10.1063/1.2946881

出版商:AIP    

年代:1973

数据来源: AIP