Al(26) Studies with INTEGRAL's Spectrometer SPI
Al(26) radioactivity traces recent nucleosynthesis throughout the Galaxy, and is known to be produced in massive stars and novae. The
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Alouani {\it et al.} Reply to Comment on Tuning of the CDW in MX Chains
This is a reply to J. T. Gammel's Comment (9404047) on Tuning of the CDW in MX Chains. We show
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Al substitution in MgB2 crystals: influence on superconducting and structural properties
Single crystals of Mg1-xAlxB2 have been grown at a pressure of 30 kbar using the cubic anvil technique. Precipitation free
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A Hybrid Al(0.10)Ga(0.90)As/AlAs Bilayer Electron System
We have fabricated a device composed of two closely coupled two-dimensional electron systems, one of which resides within an AlAs
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A Note on "Probing the existence of the $E_{peak}$-$E_{iso}$ correlation in long Gamma Ray Bursts" by Ghirlanda et al. - astro-ph/0502186
In Nakar & Piran (2004) we have shown that a large fraction of BATSE bursts cannot satisfy the Amati relation
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Another possible interpretation of SN 1a data - without kinematics: Comments on the paper astro-ph/0402512 by A. Riess et al
It is shown here that for redshifts $z < 0.5$ the luminosity distance, which is predicted in author's model astro-ph/0005084
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An Upper Limit to the Mass of rho1 Cnc's Radial Velocity Companion
Doppler spectroscopy of rho1 Cnc has detected evidence of a companion with an orbital period of 14.65 days and a
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A Point-Contact Study of the Superconducting Gaps in Al-Substituted and C-Substituted MgB_2 Single Crystals
We present the results of directional point-contact spectroscopy in state-of-the-art Mg_{1-x}Al_xB_2 and Mg(B_{1-y}C_{y})_2 single crystals produced at ETH, Zurich. Fitting
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Asymmetry in hierarchy model of Bonabeau et al
The 1995 model of Bonabeau et al. explains the emergence of social hierarchies through randomness, but gives as many leaders
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A systematic search for massive young stars in the Galaxy - the RMS survey
We have selected red MSX sources (RMS) that have the colours of massive young stellar objects (MYSOs). Our aim is
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Atomic ordering effects and bond indices in quaternary systems Si-(Be,Al)-O-N
We propose a microscopic method for modeling atomic ordering effects in multi-component solid solutions, which is based on minimizing the
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Band filling and interband scattering effects in MgB$_2$: C vs Al doping
We argue, based on band structure calculations and Eliashberg theory, that the observed decrease of $T_c$ of Al and C
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Bright Radio Galaxies with BeppoSAX
Although a strong similarity between radio galaxies and Seyferts has been pointed out with ASCA, some radio galaxies do not
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CCD Photometry of Dwarf Nova AL Com in Superoutburst
We report a CCD optical photometry of a dwarf nova AL Com in superoutburst. Before superhumps occurred the light curve
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Comment on "Critical behavior of the Pauli spin susceptibility..." by A. A. Shashkin et. al
The paper by A. A. Shashkin et al. [cond-mat/0409100] reports measurements of the thermodynamic magnetization of two-dimensional electrons in silicon.
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Comment on "High Field Quasiparticle Tunneling in Bi_2Sr_2CaCu_2O_{8+δ} : Negative Magnetoresistance in the Superconducting State" (N.Morozov et al, Phys.Rev. Lett. 84,1784 (2000))
We show that the negative c-axis magnetoresistance in cuprates is the normal state feature.
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Comment on "Magnetic Field Independence of the Spin Gap in YBa_2Cu_3O_{7-d}" by K. Gorny et al., Phys. Rev. Lett. 82, 177 (1999)
In a recent Letter of Gorny et al. it was reported that the spin-lattice relaxation rate in YBCO_{7-d} is magnetic
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Comment on "Memory Effects in an Interacting Magnetic Nanoparticle System" by Sun et. al, prl, 91, 167206 (2003)
In this Comment we report a phenomenon identical to that observed in ({Y. Sun, M. B. Salamon, K. Garnier and
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Comment on: "Mode repulsion and mode coupling in random lasers" by Cao et al. Phys. Rev. B {\bf 67}, 161101 (R) (2003)
In recent paper Cao et al. [Phys. Rev. B {\bf 67}, 161101 (R) (2003)] reported an observation of what is
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Comment on "Negative specific heat for a cluster of 147 Sodium atoms" by Schmidt et al
Schmidt et al (Phys Rev Lett 86, 1191 (2001)) observe and analyze a negative specific heat in Na clusters. The
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Comment on "Predominantly Superconducting Origin ...", by N. Miyakawa, et al
Recent tunneling studies in Bi2Sr2CaCu2O8 suggest that the pseudogap is caused by superconducting fluctuations. By reanalyzing this data, we show
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Comment on "Search for periodic modulations of the solar neutrino flux in Super-Kamiokande" by J. Yoo et al
We comment on a recent article by Yoo et al. that presents an analysis of Super-Kamiokande 10-day and 5-day data,
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Comment on "Spherically symmetric perfect fluid in area-radial coordinates" by Iguchi et al
In this short note we comment about some criticisms - appeared in a recent paper by Iguchi et al -
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Comment on ``Mechanisms of synchronization and pattern formation in a lattice of pulse-coupled oscillators'' by Diaz-Guilera et al., Phys. Rev. E 57, 3820 (1998)
In a recent paper, Diaz-Guilera et al. [Phys. Rev. E 57, 3820 (1998)] analyze the mechanisms of synchronization and pattern
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