= A. P. Drozdov
{c}
{tag=Physicist}
An experimental <physicist> who performed much of the work reported in the 2015 sulfur-hydride <superconductivity> study. A <diamond anvil cell> compressed the sample to very high <pressure>; electrical and magnetic measurements tested the transition. The reported 203-kelvin result depended on pressure and sample preparation, illustrating that a transition temperature describes a particular material state and experimental history.<Conventional superconductivity at 203 kelvin at high pressures in the sulfur hydride system by A. P. Drozdov and others>[Author contributions and Extended Data Figs. 2–6: experiments, thermal history and cell apparatus]{ref}
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