%0 Generic %1 Wang2011 %A Wang, Jian %A Li, Handong %A Chang, Cui-Zu %A He, Ke %A Lee, Joon Sue %A Ma, Xu-Cun %A Samarth, Nitin %A Xue, Qi-Kun %A Xie, Maohai %A Chan, M. H. W. %D 2011 %K magnetoresistance %T Current induced anisotropic magnetoresistance in topological insulator films %U http://arxiv.org/abs/1108.1465 %X Topological insulators are insulating in the bulk but possess spin-momentum locked metallic surface states protected by time-reversal symmetry. The existence of these surface states has been confirmed by angle-resolved photoemission spectroscopy (ARPES) and scanning tunneling microscopy (STM). Detecting these surface states by transport measurement, which might at first appear to be the most direct avenue, was shown to be much more challenging than expected. Here, we report a detailed electronic transport study in high quality Bi2Se3 topological insulator thin films. Measurements under in-plane magnetic field, along and perpendicular to the bias current show opposite magnetoresistance. We argue that this contrasting behavior is related to the locking of the spin and current direction providing evidence for helical spin structure of the topological surface states.

@misc{Wang2011, abstract = { Topological insulators are insulating in the bulk but possess spin-momentum locked metallic surface states protected by time-reversal symmetry. The existence of these surface states has been confirmed by angle-resolved photoemission spectroscopy (ARPES) and scanning tunneling microscopy (STM). Detecting these surface states by transport measurement, which might at first appear to be the most direct avenue, was shown to be much more challenging than expected. Here, we report a detailed electronic transport study in high quality Bi2Se3 topological insulator thin films. Measurements under in-plane magnetic field, along and perpendicular to the bias current show opposite magnetoresistance. We argue that this contrasting behavior is related to the locking of the spin and current direction providing evidence for helical spin structure of the topological surface states. }, added-at = {2011-12-02T17:57:27.000+0100}, author = {Wang, Jian and Li, Handong and Chang, Cui-Zu and He, Ke and Lee, Joon Sue and Ma, Xu-Cun and Samarth, Nitin and Xue, Qi-Kun and Xie, Maohai and Chan, M. H. W.}, biburl = {https://www.bibsonomy.org/bibtex/2244027b470c3efbb20207d4305be6981/vakaryuk}, description = {Current induced anisotropic magnetoresistance in topological insulator films}, interhash = {cf1443001fe4d8fc807281099b8cfdfc}, intrahash = {244027b470c3efbb20207d4305be6981}, keywords = {magnetoresistance}, note = {cite arxiv:1108.1465}, timestamp = {2011-12-02T17:57:27.000+0100}, title = {Current induced anisotropic magnetoresistance in topological insulator films}, url = {http://arxiv.org/abs/1108.1465}, year = 2011 }