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No Go Theorems in Interacting Fermions

1. Pomeranchuk instability and response beyond the quasiparticle regime. Authors: Egor I. Kiselev, Mathias S. Scheurer, Peter Wölfle, and Jörg Schmalian. arXiv:1611.01442 2.Conservation and persistence of spin currents and their relation to the Lieb-Schulz-Mattis twist operators. Authors: N. Bray-Ali and Z. Nussinov. Phys. Rev. B 80, 012401 (2009) Recommended with a commentary by Chandra Varma, […]

The hunt for the pairing glue in the cuprates

Quantitative determination of pairing interactions for high-temperature superconductivity in cuprates. Authors: Jin Mo Bok, Jong Ju Bae, Han-Yong Choi, Chandra M. Varma, Wentao Zhang, Junfeng He, Yuxiao Zhang, Li Yu, and X.J. Zhou. Science Advances, 2, E1501329, 2016 arXiv: 1601.02493 Recommended with a commentary by Andrey Chubukov, University of Minnesota. |View Commentary| JCCM_March_2016_01

The Ironics: Strong Coupling or Weak Coupling in the Wonderland

1.Mott-Kondo Insulator Behavior in the Iron Oxychalcogenides. Authors: B. Freelon, Yu Hao Liu, Jeng-Lung Chen, L. Craco, M. S. Laad, S. Leoni, Jiaqi Chen, Li Tao, Hangdong Wang, R. Flauca, Z. Yamani, Minghu Fang, Chinglin Chang, J.H. Guo and Z. Hussain. arXiv:1501.00332 2.FeSe: a model system for Fe based superconductors. Authors: B. Büchner. KITP Program: […]

Mott Physics, Mixed Valence and Oxygen valence Changes in the Modern Li-ion Batteries

High Performance Li2Ru1–yMnyO3 (0.2 ≤ y ≤ 0.8) Cathode Materials for Rechargeable Lithium-Ion Batteries: Their Understanding Authors: M. Sathiya, K. Ramesha, G. Rousse, D. Foix, D. Gonbeau, A. S. Prakash, M. L. Doublet, K. Hemalatha, and J.-M. Tarascon Chem. Mater. 25, 1121 (2013) Recommended with a commentary by Chandra Varma, University of California, Riverside |View […]

Phonon Drag in a layered Transition Metal Compound

1.Quantum oscillations and high carrier mobility in the delafossite PdCoO2. Authors:Clifford W. Hicks, Alexandra S. Gibbs, Andrew P. Mackenzie, Hiroshi Takatsu, Yoshiteru Maeno, and Edward A. Yelland. Phys. Rev. Lett. 109, 116401 (2012) Recommended with a Commentary by Chandra Varma, University of California, Riverside |View Commentary| JCCM_AUGUST_2013_03


1. Discovery of the First Topological Kondo Insulator: SmB6. Authors: S. Wolgast, C. Kurdak, K. Sun, J. W. Allen, D-J. Kim and Z. Fisk. 2. Robust Surface Hall Effect and Non-local Transport in SmB6: Indication for an ideal Topological Insulator. Authors: J. Botimer, D-J. Kim, S. Thomas, T. Grant, Z. Fisk and X. Jia. […]

Correlation Energy in the Unfamiliar Realm of Capacitors and Batteries

1. Non-mean- eld theory of anomalously large double-layer capacitance. Authors: M. S. Loth, Brian Skinner and B. I. Shklovskii, Phys. Rev. E 82, 016107 (2010). 2. Model of large volumetric capacitance in graphene supercapacitors based on ion clustering Authors: Brian Skinner, M. M. Fogler and B. I. Shklovskii, Phys. Rev. B 84, 235133 (2011) . Recommended […]

Electron-electron Interactions in Bilayer Graphene

1. Broken Symmetry States and Divergent Resistance in Suspended Bilayer Graphene Authors: Benjamin E. Feldman, Jens Martin, and, Amir Yacoby arXiv:0909.2883, Nature Physics 5, 889 (2009) 2. Local Compressibility Measurements of Correlated States in Suspended Bilayer Graphene Authors: Jens Martin, Benjamin E. Feldman, R. Thomas Weitz, Monica T. Allen, and Amir Yacoby arXiv:1009.2069, Phys. Rev. […]

What is the Model for Ferromagnetism in Itinerant Fermions?

1. Itinerant ferromagnetism in a Fermi gas with contact interaction: Magnetic properties in a dilute Hubbard model Authors: C-C. Chang, S. Zhang and D.M. Ceperley, arXiv: 1009.1409v1 2. Itinerant ferromagnetism of a repulsive atomic Fermi gas: a quantum Monte Carlo study Authors: S. Pilati, G. Bertaina, S. Giorgini, and M. Troyer, arXiv:1004.1169v1 Phys. Rev. Lett. […]

Singular Fermi-Liquids from Duality of Field Theories to Theories of Gravity

1. Emergent quantum criticality, Fermi surfaces, and AdS2. Authors: Thomas Faulkner, Hong Liu, John McGreevy, David Vegh arXiv:0907.2694; arXiv:0903.2477 2. Fermions and the AdS/CFT correspondence: quantum phase transitions and the emergent Fermi-liquid. Authors: Mihailo Cubrovic, Jan Zaanen, Koenraad Schalm. arXiv:0904.1993 Recommended with a Commentary by Elihu Abrahams, Rutgers, Andrew Cohen, Boston University and Chandra Varma, […]

Collective mode of Magnetization in Heavy Fermi Liquids

1) Evolution of the Kondo state of Y bRh2Si2 probed by high field ESR Authors: U. Schaufuß, V. Kataev, A. A. Zvyagin, B. Büchner, J. Sichelschmidt, J. Wykho , C. Krellner, C. Geibel, and F. Steglich., Phys. Rev. Lett. 102, 076405 (2009) 2) Electron spin resonance in Kondo systems Authors: Elihu Abrahams and Peter Wölfle […]

Mysterious Order for Spins on a Triangular Lattice

Unconventional spin freezing and fluctuations in the frustrated antiferromagnet NiGa2S4 Authors: D. E. MacLaughlin, Y. Nambu, S. Nakatsuji, R. H. Heffner, Lei Shu, O. O. Bernal and K. Ishida Spin disorder on a Triangular Lattice Authors: S. Nakatsuji, Y. Nambu, H. Tonomura, O. Sakai, S. Jonas, C. Broholm, H. Tsunetsugu, Y. Qiu, Y. Maeno […]

Clues to the Hidden Order Parameter in URu2Si2 through Inelastic Neutron Scattering Measurements

Authors: C.R. Wiebe, J.A. Janik, G.J. MacDougall, G.M. Luke, J.D. Garrett, H.D. Zhou, Y.-J. Jo, L. Balicas, Y. Qiu, J.R. D. Copley, Z. Yamani, and W.J. L. Buyers. http://Arxiv:0710.0896v2 Recommended and a Commentary by Chandra Varma, University of California, Riverside. | View Commentary (pdf) | JCCM_Jan08_03

Possible Quantum-liquid Metallic Phase of Hydrogen at high Pressures and its Properties

Authors: P. Loubeyre, F. Occelli and R. LeToullec Nature 416, 613 (2002) Authors: S. Bonev, E. Schwegler, T. Ogitsu and G. Galli Nature 431, 669 (2004) Authors: E.Babaev, A. Sudbo and N.W. Ashcroft; E.Smorgrav, E. Babaev, J. Smiseth and A. Sudbo; Nature 431, 665 (2004) Recommended and Commentary by Chandra Varma, UC […]

Organizers, Advisory Committee, and Correspondents in the last two years

Organizers: Alexander Grosberg New York University Chandra M. Varma (Chief organizer) University of California, Riverside Advisory Committee: Zachary Fisk, University of California, Irvine Paul Ginsparg, Cornell University Robert Laughlin, Stanford University David Pines, University of California, Davis and ICAM, Chairperson Correspondents in the last two years: Anton Akhmerov, Delft University of Technology | View Contributions […]

The Blue Fog State of Magnetization: Helical Spin Crystal in MnSi

Authors: B. Binz, A. Vishwanath and Vivek Aji Recommended and Commentary by Chandra Varma, University of California, Riverside. | View Commentary (pdf) | (JCCM_Apr06_02)

Rubber like Thermal Expansion, Elastic Constants and Compressibility in some Crystalline Solids

Authors: F. R. Drymiotis et al. Phys. Rev. Letters, vol. 93, 025502-1-4 (2004) Authors: C. Pantea et al. Recommended and Commentary by Chandra Varma, Bell laboratories and University of California, Riverside.  | View Commentary (pdf) | (JCCM_Sep05_03)

1. Spin-current and spin accumulation in 2d spin-orbit coupled systems with impurities / 2. Spin-Hall effect in a disordered 2D electron-system

1. Spin-current and spin accumulation in 2d spin-orbit coupled systems with impurities Authors: E.G. Mischenko, A. V. Shytov and B.I. Halperin 2. Spin-Hall effect in a disordered 2D electron-system Authors: R. Raimondi and P. Schwab Recommended and a Commentary by Alexander Punnoose, Bell labs and Chandra Varma, Bell labs and University of California, […]

High Resolution Study of Magnetic Ordering at Absolute Zero

Authors: M. Lee, A. Hussman, T.F. Rosenbaum and G. Aeppli Recommended and a Commentary by: Chandra Varma, University of California, Riverside and Bell laboratories. | View Commentary (pdf) | (JCCM_Feb04_03)

Some Remarkable Developments in Bose-Einstein condensation of Molecules

A.  “Bose-Einstein Condensation of Molecules” Authors: S. Jochim, M. Bartenstein, A. Altmeyer, G. Hendl, S. Riedl, C. Chin, J. Hecker Denschlag, R. Grimm B.  “A Molecular Bose-Einstein Condensate Emerges From a Fermi Sea” Authors: Markus Greiner, Cindy A. Regal, and Deborah S. Jin C.  “Observation of Bose-Einstein Condensation of Molecules” Authors: M.W. Zwierlein […]