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  • 1
    Publication Date: 2014-12-06
    Description: In the Kondo insulator samarium hexaboride (SmB6), strong correlation and band hybridization lead to an insulating gap and a diverging resistance at low temperature. The resistance divergence ends at about 3 kelvin, a behavior that may arise from surface conductance. We used torque magnetometry to resolve the Fermi surface topology in this material. The observed oscillation patterns reveal two Fermi surfaces on the (100) surface plane and one Fermi surface on the (101) surface plane. The measured Fermi surface cross sections scale as the inverse cosine function of the magnetic field tilt angles, which demonstrates the two-dimensional nature of the conducting electronic states of SmB6.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, G -- Xiang, Z -- Yu, F -- Asaba, T -- Lawson, B -- Cai, P -- Tinsman, C -- Berkley, A -- Wolgast, S -- Eo, Y S -- Kim, Dae-Jeong -- Kurdak, C -- Allen, J W -- Sun, K -- Chen, X H -- Wang, Y Y -- Fisk, Z -- Li, Lu -- New York, N.Y. -- Science. 2014 Dec 5;346(6214):1208-12. doi: 10.1126/science.1250366.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA. ; Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA. Hefei National Laboratory for Physical Science at Microscale and Department of Physics, University of Science and Technology of China, Hefei Anhui 230026, China. ; Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA. Department of Physics, Tsinghua University, Beijing, China. ; Department of Physics and Astronomy, University of California at Irvine, Irvine, CA 92697, USA. ; Hefei National Laboratory for Physical Science at Microscale and Department of Physics, University of Science and Technology of China, Hefei Anhui 230026, China. ; Department of Physics, Tsinghua University, Beijing, China. ; Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA. luli@umich.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25477456" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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