Accession Number:

AD0269088

Title:

ACOUSTIC SPIN-WAVE BRANCHES OF A CLASS OF FERRIMAGNETS

Descriptive Note:

Final rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

Report Date:

1961-12-12

Pagination or Media Count:

7.0

Abstract:

A smple new method of calclating the energies of long wavelength acoustc magnons in exchangecoupled solis, which have a unique acoustic spin-wave brnch and whih satiy certin explici restictions as to spin orering and crysal symmetry, is exhibited for cases of yttrium iron garnet and magnetie. This method is based on a recent extension of the HolsteinPriakoff spin-wave theory to complex magnetic strutures. Agreement with calcultions is obtained. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE