Nitrogen loss from unpolluted South American forests mainly via dissolved organic compounds

SS Perakis, LO Hedin - Nature, 2002 - nature.com
Abstract Conceptual,,, and numerical,,, models of nitrogen cycling in temperate forests
assume that nitrogen is lost from these ecosystems predominantly by way of inorganic forms …

Imaging the granular structure of high-Tc superconductivity in underdoped Bi2Sr2CaCu2O8+δ

KM Lang, V Madhavan, JE Hoffman, EW Hudson… - Nature, 2002 - nature.com
Granular superconductivity occurs when microscopic superconducting grains are separated
by non-superconducting regions; Josephson tunnelling between the grains establishes the …

Unusual Strong-Coupling Effects in the Tunneling Spectroscopy of Optimally Doped and Overdoped

Y DeWilde, N Miyakawa, P Guptasarma, M Iavarone… - Physical review …, 1998 - APS
Tunneling spectroscopy measurements are reported on single crystals of Bi 2 Sr 2 CaCu 2 O
8+ δ using vacuum tunneling and point-contact methods. A reproducible dip feature in the …

Influence of Disorder on the Local Density of States in High- Superconducting Thin Films

T Cren, D Roditchev, W Sacks, J Klein, JB Moussy… - Physical review …, 2000 - APS
Using a low temperature scanning tunneling microscope in the spectroscopic mode, we find
that the disorder in a Bi 2 Sr 2 CaCu 2 O 8+ δ thin film modifies dramatically the quasiparticle …

Influence of gap extrema on the tunneling conductance near an impurity in an anisotropic superconductor

JM Byers, ME Flatté, DJ Scalapino - Physical review letters, 1993 - APS
We examine the effect of an impurity on the nearby tunneling conductance in an
anisotropically gapped superconductor. The variation of the conductance has pronounced …

Absence of Static Phase Separation in the High Cuprate

J Bobroff, H Alloul, S Ouazi, P Mendels, A Mahajan… - Physical review …, 2002 - APS
We use Y 89 NMR in YB a 2 C u 3 O 6+ y in order to evaluate with high sensitivity the
distribution of hole content p in the C u O 2 planes. For y= 1 and y= 0.6, this hole doping …

STM images of a superconducting Cu-O plane and the corresponding tunneling spectrum in

M Oda, C Manabe, M Ido - Physical Review B, 1996 - APS
Clear atomic images of Bi 2 Sr 2 CaCu 2 O 8+ δ cleaved surfaces have been observed at T=
6 and 300 K by scanning tunneling microscopy (STM). The atomic images taken for bias …

Observation of a-b plane gap anisotropy in with a low temperature scanning tunneling microscope

J Kane, Q Chen, KW Ng, HJ Tao - Physical review letters, 1994 - APS
Significant gap anisotropy within the ab plane of Bi 2 Sr 2 CaCu 2 O 8 has been observed
with a low temperature scanning tunneling microscope. The energy gap is largest along the …

Charge-density-wave origin of the dip-hump structure in tunnel spectra of the BSCCO superconductor

AM Gabovich, AI Voitenko - Physical Review B—Condensed Matter and …, 2007 - APS
Differential conductance G as the function of the bias voltage V across the tunnel junction
between a normal metal and an inhomogeneous superconductor with charge density waves …

Constraints on the quasiparticle density of states in high-Tc superconductors

T Cren, D Roditchev, W Sacks, J Klein - Europhysics Letters, 2000 - iopscience.iop.org
In this letter we present new tunneling data on YBa 2 Cu 3 O 7 thin films by low-temperature
scanning tunneling spectroscopy. Unusual peak-dip-hump features, previously reported in …