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Dopant-induced impurity states in underdoped iron-based superconductor Ca(Fe1-xCox)2As2, resulting quasiparticle scattering, and its relation to the nematic transport of the parent phase are studied with SI-STM and ARPES. |
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published article - download PDF
(Nature Physics 9, 220 - Apr 2013)
See also -
Brookhaven National Laboratory news /
TechConnect / Product Design & Development /
Science Newsline / Phys.org / ECN magazine /
LabSpaces.net / Innovations report / Red orbit /
Nanotechnology now / R & D magazine |
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Zinc impurity states inside Bi2Sr2CaCu2O8+δ are located to pico-meter scale, providing phase information for intra-unit-cell Bragg-peak Fourier analysis. |
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published article - download PDF
(New Journal of Physics 14, 053017 - May 2012) |
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Anisotropic energy gaps of iron-based superconductor LiFeAs are determined from intra-band QPI analysis. |
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published article - download PDF
(Science 336, 563 - May 2012)
See also -
News at Brookhaven National Lab
Article on Cornell Chronicle
Article on EurekaAlert
Article on ScienceDaily |
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Electronic structure of Kondo holes in the Th-doped heavy Fermion compound URu2Si2 is visualized with STM to find heterogeneous hybridization strength in nanoscale. |
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published article - download PDF
(Proc. Nat'l Acad. Sci. 108, 18233 - Nov 2011)
See also -
Commentary by J. D. Thompson
Author Interview with Kavli Foundation
Article on Physorg.com
Article on Eurekaorg.com
News on ScienceDaily
News at Brookhaven National Lab |
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The 2π topological defects in the pseudogap phase of underdoped Bi2Sr2CaCu2O8+δ and the relationship between the coexistent smectic and intra-unit-cell broken symmetries are studied. |
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published article - download PDF
(Science 333, 426 - Jul 2011)
See also -
News on R&D Magazine
Binghamton University Research News
Article on Physorg.com |
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Interplay of rotational, relaxational and shear dynamics in solid 4He is investigated. |
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published article - download PDF
(Science 332, 821 - May 2011)
See also -
Nature NewsBlog by E. S. Reich
ScienceDaily news
Physics Today The Dayside by Charles Day (Physics Today online editor) |
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Electronic nematicity within unit cell in Bi2Sr2CaCu2O8+δ was studied with SI-STM. |
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published article - download PDF
(Nature 466, 347 - July 2010)
See also -
News at Brookhaven National Lab |
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Heavy-fermion compound URu2Si2 is investigated in both real and momentum space with spectroscopic imaging (SI) - STM. |
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published article - download PDF
(Nature 465, 570 - June 2010)
See also -
News and Views by A. J. Schofield
(Nature 465, 553) |
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Nematic electronic structure in the parent state of the iron-based superconductor Ca(Fe1-xCox)2As2 is revealed by spectroscopic imaging (SI) STM measurements in both real-space and momentum-space. |
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published article - download PDF
(Science 327, 181 - January 2010)
See also -
Perspectives by E. Fradkin & S. A. Kivelson
(Science 327, 155)
Article on NewScientist by Colin Barras |
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Heavy d-electron quasiparticle interferenc(QPI) patterns in k-space and sub-atomic electronic structure in r-space are revealed by spectroscopic imaging(SI) STM measurements on Sr3Ru2O7. A relevant band is also identified from the complicated band structure of Sr3Ru2O7 by inverting dispersing QPI patterns. |
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published article - download pdf
(Nature Physics 5, 800 - September 2009) |
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Quasiparticle interference imaging in the cuprate pseudogap state (T>Tc) reveals the spectro-scopic 'fingerprint' of phase incoherent d-wave superconductivity. (Click image to enlarge) |
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published article - download PDF
(Science 325, 1099 - August 2009)
See also -
Perspectives by Michael R. Norman
(Science 325, 1080)
News at Brookhaven National Lab
Press release by Cornell University |
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Relaxation study of 4He in the solid phase reveals ultraslow dynamics, evidencing the formation of superglass state. |
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published article - download PDF
(Science 324, 632 - May 2009)
See also -
Perspectives by John Saunders
(Science 324, 601)
News by Jon Cartwright
(Physics World, Apr 30 2009)
Commentary by Tony Leggett
(Journal Club for Conensed matter Physics)
Article on Physics Today (8 Jun 2009) |
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Investigation of the vanishing pattern of Cooper pairs in Bi2Sr2CaCu2O8+δ, approaching the Mott insulator. |
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published article - download PDF
(Nature 454, 1072 - Aug 2008)
See also -
Review by Tetsuo Hanaguri
(Nature 454, 1062)
Editor's summary
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Evolution of the electronic excitation spectrum with strongly diminishing hole
density in superconducting Bi2Sr2CaCu2O8+δ. |
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published article - download PDF
(Nature Physics 4, 319 - Apr 2008)
See also - review by Eric Hudson
(Nature Physics 4, 271) |
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Imaging the impact on cuprate superconductivity of varying the interatomic distances within individual crystal cells . |
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published article - download PDF
(Proc. Nat'l Acad. Sci. Vol. 105, no. 9, 3203
- Mar 2008)
See also - comment by Michael R. Norman
(Proc. Nat'l Acad. Sci. Vol. 105, no. 9, 3173) |
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Quasiparticle interference of nearly optimally doped Ca2-xNaxCuO2Cl2 was studied using STS. |
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published article - download PDF
(Nature Physics 3, 865 - Oct 2007) |
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Atomic resolution tunneling asymmetry imaging: an intrinsic Cu-O-Cu bond-centered electronic glass with disperse 4a0-wide unidirectional domains in underdoped Ca1.88Na0.12CuO2Cl2 and Bi2Sr2Dy0.2Ca0.8Cu2O8+δ |
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published article - cover story - download PDF
(Science 315, 1380 - Mar 2007)
Click the left image to see the movie. |
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The pseudogap state in cuprate superconductors La2-xBaxCuO4 (x=1/8) was studied by ARPES and STM. |
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published article - download PDF
(Science 314, 1914 - Dec 2006) |
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The influence of atomic scale electron-lattice interactions on high-Tc superconductivity was imaged by STM. |
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published article - download PDF
(Nature 442, 546 - Aug 2006) |
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Atomic-scale sources and mechanism of nanoscale electronic disorder in Bi2Sr2CaCu2O8+δ were identified by STM. |
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published article - download PDF
(Science 309, 1048 - Aug 2005) |
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The doping dependence of nanoscale electronic structure in superconducting Bi2Sr2CaCu2O8+δ was studied by STM. |
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published article - download PDF
(Phys. Rev. Lett. 94, 197005 - May 2005) |
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'Checkerboard' electronic crystal state in the lightly hole-doped cuprate Ca2-xNaxCuO2Cl2. |
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published article - download PDF
(Nature 430, 1001 - Aug 2004)
See also :
Magnetic Material Laboratory site (RIKEN)
Physics Today - cover figure by Curry Taylor |
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The relationship between atomic-scale electronic phenomena and wave-like quasiparticle states in superconducting Bi2Sr2CaCu2O8+δ was explained in terms of an octet model of quasiparticle interference. |
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published article - download PDF
(Nature 422, 592 - Apr 2003) |
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The granular structure of high-Tc superconductivity in underdoped Bi2Sr2CaCu2O8+δ was imaged with atomic resolution, revealing inherent heterogeneity. |
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published article - download PDF
(Nature 415, 412 - Jan 2002) |
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A checkerboard-like Four Unit Cell Periodic Pattern of Quasi-Particle States Surrounding Vortex Cores in Bi2Sr2CaCu2O8+δ was discovered. |
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published article - download PDF
(Science 295, 466 - Jan 2002) |
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