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PERIODICALS PHYSICAL REVIEW B Postmaster send address changes to: For editorial and subscription correspondence, APS Subscription Services please see inside front cover Suite 1NO1 „ISSN: 1098-0121… 2 Huntington Quadrangle Melville, NY 11747-4502 THIRD SERIES, VOLUME 74, NUMBER 17 CONTENTS NOVEMBER 2006-1(I) BRIEF REPORTS Structure, structural phase transitions, mechanical properties, defects Hypothetical hard structures of carbon with cubic symmetry (4 pages) ................................. 172101 Filipe J. Ribeiro, Paul Tangney, Steven G. Louie, and Marvin L. Cohen Phase imaging and the evolution of a gold-vacuum interface at atomic resolution (4 pages) ............... 172102 A. V. Martin, K. Ishizuka, C. Kisielowski, and L. J. Allen Electronic structures and magnetic properties of spinel ZnMn2O4 under high pressure (4 pages) ............ 172103 H. C. Choi, J. H. Shim, and B. I. Min Complexity and Fermi surface deformation in compressed lithium (4 pages) ............................ 172104 A. Rodriguez-Prieto, A. Bergara, V. M. Silkin, and P. M. Echenique Electrostatic potential of ferroelectric PbTiO3: Visualized electron polarization of Pb ion (4 pages) ......... 172105 Hiroshi Tanaka, Yoshihiro Kuroiwa, and Masaki Takata Stress relaxation effect on transport properties of strained vanadium dioxide epitaxial thin films (4 pages) .... 172106 Kazuki Nagashima, Takeshi Yanagida, Hidekazu Tanaka, and Tomoji Kawai Generation of deformation twins in nanocrystalline metals: Theoretical model (4 pages) .................. 172107 M. Yu. Gutkin, I. A. Ovid’ko, and N. V. Skiba Inhomogeneous, disordered, and partially ordered systems Electron-phonon dephasing time due to the quasistatic scattering potential in metallic glass CuZrAl (4 pages) ................................................................................... 172201 L. Li, S. T. Lin, C. Dong, and J. J. Lin Collective excitations in an early molten transition metal (4 pages) ................................... 172202 A. H. Said, H. Sinn, A. Alatas, C. A. Burns, D. L. Price, M. L. Saboungi, and W. Schirmacher Dynamics, dynamical systems, lattice effects, quantum solids Effect of the electric field mode on the dynamic process of a polaron (4 pages) ......................... 172301 Xiaojing Liu, Kun Gao, Jiyong Fu, Yuan Li, Jianhua Wei, and Shijie Xie Linear chain of weakly coupled defects in a three-dimensional phononic crystal: A model acoustic waveguide (4 pages) ................................................................................... 172302 R. Sainidou, N. Stefanou, and A. Modinos Copyright 2006 by The American Physical Society (Continued) CONTENTS - Continued PHYSICAL REVIEW B THIRD SERIES, VOLUME 74, NUMBER 17 NOVEMBER 2006-1(I) Physical momentum versus crystal momentum of acoustic phonons in a crystal lattice (4 pages) ........... 172303 Y. C. Lee and W. Z. Lee Dynamics of a hydrogenated silica xerogel: A neutron scattering study (3 pages) ........................ 172304 A. Fontana, L. Orsingher, F. Rossi, and U. Buchenau Unified description of Zitterbewegung for spintronic, graphene, and superconducting systems (4 pages) ...... 172305 József Cserti and Gyula Dávid Magnetism Competing magnetic interactions in the extended Kagomé system YBaCo4O7 (4 pages) .................. 172401 L. C. Chapon, P. G. Radaelli, H. Zheng, and J. F. Mitchell Anomalous positive magnetoresistance in Fe0.75Mn1.35As (4 pages) ................................... 172402 N. K. Sun, Y. B. Li, D. Li, Q. Zhang, W. J. Feng, and Z. D. Zhang Small-angle interband scattering as the origin of the T3/2 resistivity in MnSi (4 pages) .................... 172403 M. F. Smith Tetrahedrally coordinated half-metallic antiferromagnets (4 pages) .................................... 172404 Masao Nakao Experimental observation of charge ordering in nanocrystalline Pr0.65Ca0.35MnO3 (4 pages) ................ 172405 Anis Biswas and I. Das Specific-heat evidence of strong electron correlations and thermoelectric properties of the ferromagnetic perovskite SrCoO3−␦ (4 pages) ................................................................. 172406 S. Balamurugan, K. Yamaura, A. B. Karki, D. P. Young, M. Arai, and E. Takayama-Muromachi Spectral properties of alternating antiferromagnetic-ferromagnetic spin-half chains and the emergence of composite spin-one behavior (4 pages) .......................................................... 172407 Weihong Zheng, Chris J. Hamer, and Rajiv R. P. Singh Thickness-dependent magnetic anisotropy in ultrathin Fe/Co/Cu͑001͒ films (4 pages) .................... 172408 Jisang Hong Large magnetic circular dichroism in resonant inelastic x-ray scattering at the Mn L-edge of Mn-Zn ferrite (4 pages) ................................................................................... 172409 M. Magnuson, L.-C. Duda, S. M. Butorin, P. Kuiper, and J. Nordgren NMR relaxation of quantum spin chains in magnetic fields (4 pages) .................................. 172410 Takahumi Suzuki and Sei-ichiro Suga Ferromagnetic state in ultrathin orthorhombic CrAs films: Thickness, lattice distortion, and half-metallic contributions (4 pages) ....................................................................... 172411 Alexandre A. Araújo, Bernardo Laks, and P. C. de Camargo Doping and disorder in the Co2MnAl and Co2MnGa half-metallic Heusler alloys (4 pages) ................ 172412 K. Özdoğan, E. Şaşıoğlu, B. Aktaş, and I. Galanakis 1  Ferromagnetic ordering of S= 2 Heisenberg ferromagnetic chains in organic magnet -BBDTA·GaBr4 (4 pages) ................................................................................... 172413 Kengo Shimizu, Tomotaka Gotohda, Taku Matsushita, Nobuo Wada, Wataru Fujita, Kunio Awaga, Yasuhiro Saiga, and Dai S. Hirashima Quantum dynamics of an Ising spin chain in a random transverse field (4 pages) ........................ 172414 Xun Jia and Sudip Chakravarty (Continued) CONTENTS - Continued PHYSICAL REVIEW B THIRD SERIES, VOLUME 74, NUMBER 17 NOVEMBER 2006-1(I) Superfluidity and superconductivity Josephson plasmon versus amplitude modes in a superconducting tunnel junction (4 pages) ............... 172501 S. E. Shafranjuk and J. B. Ketterson Impact of the transport supercurrent on the density of states in the weak link (3 pages) ................... 172502 S. N. Shevchenko Fermi-liquid behavior and spin-charge separation in underdoped cuprates: Gaussian fluctuations in the U͑1͒ slave-boson mean-field theory of the t-J model (4 pages) ........................................... 172503 Ching-Kit Chan and Tai-Kai Ng Fermi-liquid effects in the Fulde-Ferrell-Larkin-Ovchinnikov state of two-dimensional d-wave superconductors (4 pages) ................................................................................... 172504 Anton B. Vorontsov and Matthias J. Graf Switchable resonant coupling of flux qubits (4 pages) .............................................. 172505 M. Grajcar, Yu-xi Liu, Franco Nori, and A. M. Zagoskin Evidence for two fluids in cuprate superconductors from a nuclear resonance study of ͑ ͒͑ ͒ CaxLa1−x Ba1.75−xLa0.25+x Cu3Oy (4 pages) ...................................................... 172506 Amit Keren, Amit Kanigel, and Galina Bazalitsky ͑ ͒ Anisotropic magnetoresistance in charge-ordered Na0.34 H3O 0.15CoO2: Strong spin-charge coupling and spin ordering (4 pages) ........................................................................... 172507 C. H. Wang, X. H. Chen, G. Wu, T. Wu, H. T. Zhang, J. L. Luo, G. T. Liu, and N. L. Wang Reversible magnetization of the layered high-Tc superconductors (4 pages) ............................. 172508 Madhuparna Karmakar and Bishwajyoti Dey Unadulterated spectral function of low-energy quasiparticles in Bi2Sr2CaCu2O8+␦ (4 pages) ................ 172509 D. V. Evtushinsky, A. A. Kordyuk, S. V. Borisenko, V. B. Zabolotnyy, M. Knupfer, J. Fink, B. Büchner, A. V. Pan, A. Erb, C. T. Lin, and H. Berger Surface term for the capillary condensation transitions in a slit geometry (4 pages) ...................... 172510 Ignacio Urrutia and Leszek Szybisz ARTICLES Structure, structural phase transitions, mechanical properties, defects First-principles study of the intrinsic defects in PbFCl (8 pages) ...................................... 174101 Bo Liu, Zeming Qi, and Chaoshu Shi Disorder effects on the charge-density waves structure in V- and W-doped blue bronzes: Friedel oscillations and charge-density wave pinning (26 pages) ...................................................... 174102 S. Ravy, S. Rouzière, J.-P. Pouget, S. Brazovskii, J. Marcus, J.-F. Bérar, and E. Elkaim ͓ ͔͓͑ ͒ ͔ X-ray study of the ferroelectric Ba0.6Sr0.4 YTa 0.03Ti0.94 O3 (10 pages) .............................. 174103 P. Shanthakumar, M. Balasubramanian, D. M. Pease, A. I. Frenkel, D. M. Potrepka, V. Kraizman, J. I. Budnick, and W. A. Hines Carbon films obtained from fullerenes deposited on germanium: Experimental and simulated results (7 pages) ................................................................................... 174104 E. B. Halac, A. G. Dall’Asén, E. Burgos, and M. Reinoso First-principles Landau potential for the rocksalt to KOH to TlI-type phase transitions of AgI (9 pages) ..... 174105 Michele Catti (Continued) CONTENTS - Continued PHYSICAL REVIEW B THIRD SERIES, VOLUME 74, NUMBER 17 NOVEMBER 2006-1(I) Model for phase transition based on statistical disassembly of nuclei at intermediate energies (7 pages) ...... 174106 G. Chaudhuri, S. Das Gupta, and M. Sutton Analysis of switching properties of porous ferroelectric ceramics by