Premium
Effect of Trigonal Warping on Landau Levels of Graphite
Author(s) -
Gupta O. P.,
Wallace P. R.
Publication year - 1972
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220540103
Subject(s) - image warping , trigonal crystal system , graphite , hamiltonian (control theory) , landau quantization , mathematics , physics , chemistry , condensed matter physics , magnetic field , quantum mechanics , computer science , crystallography , mathematical optimization , artificial intelligence , crystal structure , organic chemistry
We have devised a successive approximation scheme for taking account of the trigonal warping (γ 3 ) terms in the calculation of the lower‐lying magnetic levels of graphite at fields ⩾ 20 kG. A two‐component effective Hamiltonian has been introduced for these levels. Starting from analytic expressions in the case γ; 3 = 0, straightforward and simple iteration schemes have been devised (i) to take account of the higher levels and (ii) to obtain the γ 3 contributions. It is found that the trigonal warping changes the levels only by a few per cent except for the n = 0 levels. The levels n = 0, 1, 2, 3 have been calculated for a range of fields from 20 to 200 kG.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom