Ferromagnetism in new diluted magnetic semiconductor Bi2−Fe Te3

Infrared electrodynamics and ferromagnetism in the topological semiconductorsBi2Te3and Mn-dopedBi2Chapler1, Post2, Richardella3 et al. 2014Phys. Rev. B243260View full textAdd to dashboardCite

“…Ferromagnetism has been demonstrated in a number of TI candidates doped with transition metal elements [7][8][9][10][11][12][13][14][15][16][17][18] in this new class of dilute magnetic semiconductors: the dilute magnetic topological insulator. Potential TI phenomena related to the interplay between magnetism and topological SSs is an extremely challenging experimental problem, however.…”

Low-temperature ferromagnetic properties of the diluted magnetic semiconductorSb2−xCrxTe3

“…Recently, it was found that single crystal forms of Sb 2-x V x Te 3 [12] and Bi 2-x Fe x Te 3 [13] display ferromagnetic transitions near 22 K and 12 K, respectively. Interestingly, Sb 2-x Mn x Te 3 is paramagnetic down to 2 K [14].…”

Study of Ho-doped Bi2Te3 topological insulator thin films

“…[7][8][9][10] The three-dimensional TIs Bi 2 Te 3 and Bi 2 Se 3 are the most thoroughly investigated class of TI materials due to their (comparably) large bulk bandgaps of 0.15-0.3 eV and simple, single Dirac-cone, surface states. 11 Ferromagnetic order has been achieved by transition metal doping, 12 e.g., with Fe, 13 Mn, [14][15][16][17][18] and Cr, [19][20][21] of bulk and thin film samples. A major concern for magnetic TI doping, however, is to avoid the introduction of additional charge carriers in the material.…”