D-r Yoakhim Sonntag izuchal fiziku v Tekhnicheskom universitete Drezdena. Do kontsa 1989 goda on rabotal v Tsentral'nom institute fiziki tverdogo tela i materialovedeniya, spetsializiruyas' na strukture elektronov v metallicheskikh splavakh. Zatem on pereyekhal v Dortmund i rabotal v HL-Planartechnik GmbH v kachestve razrabotchika datchikov temperatury i radiatsii. On spetsializiruyetsya na radiatsionnoy fizike, mnogofaznykh splavakh i nanomaterialakh, dlya kotorykh on opublikoval ryad fundamental'nykh rabot v vedushchikh mezhdunarodnykh zhurnalakh. Iz nego prishli formuly / teoriya termoelektricheskoy sily (2005; 2017), effekta Kholla i effekta Giganta Kholla (2016) i pereraspredeleniya elektronov v kompozitakh (1989). (Podrobnosti: [...] V nachale 2019 goda vmeste s dvumya drugimi kollegami on opublikoval svoyu poslednyuyu spetsial'nuyu stat'yu pod nazvaniyem: «Elektronnyy transport v splavakh s razdeleniyem faz» [...]