"by solely" is a correct and usable phrase in written English.
You can use it to indicate that only one thing is responsible for a certain outcome. For example, "My success was achieved by solely hard work and dedication."
I think feminism can sometimes do itself a disservice by solely concentrating on The Big Issues.
C-H amination reaction can hardly be driven efficiently by solely one enzyme so far.
The misgivings extend to government officials, who many suspect are not getting by solely on their salaries.
The inertial pointing problem of a rigid satellite by solely magnetic torqueing is considered in this paper.
The crumbling of the American dream is a purple problem, obscured by solely red or solely blue lenses.
The restaurant has become a popular Pokéstop, with at least 250 people a day stopping by solely for the game over the last week.
Eric London, a spokesman for the F.T.C., said the commission, in its report, did not analyze television audiences by solely using percentages because percentages were not always adequate.
Meanwhile, the other two kinds of micron-size hierarchical structures were also obtained by solely altering Fe2+/urea molar ratio in the same solvothermal procedure.
ECs grown on the RGDS INS co-immobilized thermoresponsive interfaces can also be recovered spontaneously as viable tissue monolayers by solely reducing culture temperature.
For the forest-dominated watersheds in this study, only moderate (1 3%) reductions on evapotranspiration were predicted by solely elevating CO2 concentration under emission scenarios A2 and B1.
We argue that this integrated approach will facilitate persistence for a larger proportion of species than is possible by solely using assisted colonization.
