TY - RPRT TI - Analytical WKB theory for high-harmonic generation and its application to massive Dirac electrons AU - Taya, Hidetoshi AU - Hongo, Masaru AU - Ikeda, Tatsuhiko N. PY - 2021 DO - 10.1103/physrevb.104.l140305 UR - https://www.osti.gov/biblio/1979695 ID - 1979695 ER -