Measurements on the intensity of the resonance absorption in CuCl2.2H2O at 9400 MHz

✍ Scribed by H.J. Gerritsen; M. Garber

• Publisher: Elsevier Science
• Year: 1956
• Weight: 521 KB
• Volume: 22
• Category: Article
• ISSN: 0031-8914
• DOI: 10.1016/s0031-8914(56)80027-x

✦ Synopsis

MEASUREMENTS ON THE INTENSITY OF THE RESONANCE ABSORPTION IN CuCI~.2H,O AT 9400 MHz by H. J. GERRITSEN and M. GARBER Communication No. 302b from the Kamerlingh Onnes l~aboratorium, l.eiden, .Wederland

Synopsis

The intensity of the antiferromagnetic resonance absorption was measured at different temperatures as a function of the relative orientation of the static field H, the high frequency field h, and the crystal axes.

At the lowest temperatures and with H along the a-axis, there is no absorption when h is parallel with the a-axis, and the absorption is maximal when h is along the b-axis.

At higher temperatures the lower resonance line HI,, is excited predominantly by components of h along the c-axis, while the higher resonance line, HH, is excited predominantly by components of h along the a-axis.

The intensity of the antiferromagnetic resonance lines was of the same order as that usually encountered in paramagnetic resonance at low temperatures.

Reasonably good quantitative agreement is found between the detailed measurements and calculations based on the classical field model, as will be described in a forthcoming paper 1).