M
Michelle Johannes
Researcher at United States Naval Research Laboratory
Publications - 111
Citations - 6645
Michelle Johannes is an academic researcher from United States Naval Research Laboratory. The author has contributed to research in topics: Fermi surface & Superconductivity. The author has an hindex of 33, co-authored 101 publications receiving 5860 citations. Previous affiliations of Michelle Johannes include Cornell University & University of California, Davis.
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Unconventional Superconductivity with a Sign Reversal in the Order Parameter of LaFeAsO 1-x F x
TL;DR: It is argued that the newly discovered superconductivity in a nearly magnetic, Fe-based layered compound is unconventional and mediated by antiferromagnetic spin fluctuations, though different from the usual superexchange and specific to this compound.
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Fermi surface nesting and the origin of charge density waves in metals
Michelle Johannes,Igor Mazin +1 more
TL;DR: The concept of charge density wave (CDW), which is induced by Fermi surface nesting, originated from the Peierls idea of electronic instabilities in purely one-dimensional metals and is now often applied to charge ordering in real low-dimensional materials as discussed by the authors.
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Problems with reconciling density functional theory calculations with experiment in ferropnictides
TL;DR: In this article, the authors present a systematic analysis using four different first-principles methods and show that well-converged full-potential all-electron results are fully consistent among themselves.
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Tetragonal vs. cubic phase stability in Al – free Ta doped Li7La3Zr2O12 (LLZO)
Travis Thompson,Jeff Wolfenstine,Jan L. Allen,Michelle Johannes,Ashfia Huq,Isabel N. David,Jeff Sakamoto +6 more
TL;DR: In this article, Al-free subcritically doped (Li6.5La3Zr1.5Ta0.25O12) and critically doped compositions are investigated.
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Unconventional Fermi surface in an insulating state
B. S. Tan,Yu-Te Hsu,Bin Zeng,M. Ciomaga Hatnean,Neil Harrison,Zengwei Zhu,Mate Hartstein,M. Kiourlappou,Anchal Srivastava,Michelle Johannes,Tim Murphy,J.-H. Park,Luis Balicas,Gil Lonzarich,Geetha Balakrishnan,Suchitra E. Sebastian +15 more
TL;DR: In this article, quantum oscillation measurements of magnetic torque in high-purity single crystals of the Kondo insulator SmB6 are presented, which reveal quantum oscillations frequencies characteristic of a large three-dimensional conduction electron Fermi surface similar to the metallic rare earth hexaborides such as PrB6 and LaB6.