Magnetic resonance spectroscopy of hydrogen-passivated double donors in silicon

The microscopic aspects of hydrogen passivation of two double donor centers in silicon—substitutional sulfur and thermal donor—were investigated by the electron paramagnetic and electron nuclear double-resonance techniques. The passivation process was found to result in the formation of complexes involving a double donor and one hydrogen atom. Such complexes have single donor character and are therefore paramagnetic in their neutral charge state.