@article{article, title  = {{EVIDENCE FOR POPULATION-INVERSION IN EXCITED ELECTRON-STATES OF A DOUBLE-BARRIER RESONANT-TUNNELING STRUCTURE}},

 url = {{}},

 year = {{1994}},

 month = {{5}},

 author = {{COCKBURN JW and SKOLNICK MS and WHITTAKER DM and BUCKLE PD and WILLCOX ARK and SMITH GW}},

 volume = {{64}},

 journal = {{APPL PHYS LETT}},

 issue = {{18}},

 pages = {{2400-2402}},

 note = {{Accessed on 2024/12/23}}}