upward

Crystal structure

M Takumi, K Nagata, Pressure-induced phase transitions of trigonal, rhombohedral, orthorhombic, and α-monoclinic selenium, J Phys Soc Japan 76 Suppl A, 17 (2007)

M I McMahon, C Hejny, J S Loveday, L F Lundegaard, M Hanfland, Confirmation of the incommensurate nature of Se-IV at pressures below 70 GPa, PRB 70, 054101 (2004)

H Fujihisa, Y Akahama, H Kawamura, H Yamawaki, M Sakashita, T Yamada, K Honda, T Le Bihan, Spiral chain structure of high pressure selenium-II8 and sulfur-II from powder x-ray diffraction, PRB 70, 134106 (2004) – wrong geometry

T Maaninen, J Konu, R S Laitinen, A low-temperature redetermination of the monoclinic β-form of cyclooctaselenium, Acta Cryst E 60, o2235 (2004)

Y Akahama, M Kobayashi, H Kawamura, X-ray diffraction study on pressure-induced successive phase transition in selenium, Solid State Comm 83, 269 (1992)

Y Miyamoto, Structure and phase transformation of rhombohedral selenium composed of Se6 molecules, Japan J Appl Phys 19, 1813 (1980)

R Keller, W B Holzapfel, H Schulz, Effect of pressure on the atom positions in Se and Te, PRB 16, 4404 (1977)

P Cherin, P Unger, Refinement of the crystal structure of α-monoclinic Se, Acta Cryst B 28, 313 (1972)