{"paper":{"title":"Resonant magneto-optic Kerr effect in the magnetic topological insulator Cr:(Sb$_x$,Bi$_{1-x}$)$_2$Te$_3$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. J. Bestwick, D. Goldhaber-Gordon, E. J. Fox, Jing Wang, Joel Griesmar, J. Orenstein, J. P. Hinton, J. S. Dodge, Kang L. Wang, Lei Pan, Shou-Cheng Zhang, Shreyas Patankar, Xufeng Kou","submitted_at":"2015-05-04T17:48:55Z","abstract_excerpt":"We report measurements of the polar Kerr effect, proportional to the out-of-plane component of the magnetization, in thin films of the magnetically doped topological insulator $(\\text{Cr}_{0.12}\\text{Bi}_{0.26}\\text{Sb}_{0.62})_2\\text{Te}_3$. Measurements of the complex Kerr angle, $\\Theta_K$, were performed as a function of photon energy in the range $0.8\\text{ eV}<\\hbar\\omega<3.0\\text{ eV}$. We observed a peak in the real part of $\\Theta_K(\\omega)$ and zero crossing in the imaginary part that we attribute to resonant interaction with a spin-orbit avoided crossing located $\\approx$ 1.6 eV abo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.00728","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}