Anomalous temperature dependence of the ESR line width of hydrogen atoms in crystalline molecular hydrogen
Iskovskikh A. S., Katunin A. Ya., Lukashevich I. I., Sklyarevskii V. V., Shevtsov V. A.
First experimental results are reported on the time evolution of the width of the ESR line of Η atoms in solid H2 for various ortho-para compositions in the temperature interval 1.6 < T< 5.7 K. The line width and its temperature dependence are governed primarily by the interaction of Η atoms with the ortho-subsystem of the H2 crystal.