控制双激光脉冲的宽度提高N2分子的取向

提出了通过控制双激光脉冲宽度的方法来提高N2分子取向程度.利用数值方法求解了N2分子刚性转子模型在双激光脉冲作用下的薛定谔方程,计算了双原子分子N2在总强度固定的两束激光脉冲作用下.不同脉冲宽度对于N2分子取向的影响.研究结果表明,通过调整两束激光脉冲的宽度,选择合适的延迟时间能够有效提高N2分子的取向程度.     

控制双激光脉冲的宽度提高N2分子的取向

提出了通过控制双激光脉冲宽度的方法来提高N₂分子取向程度. 利用数值方法求解了N₂分子刚性转子模型在双激光脉冲作用下的薛定谔方程,计算了双原子分子N₂在总强度固定的两束激光脉冲作用下,不同脉冲宽度对于N₂分子取向的影响. 研究结果表明,通过调整两束激光脉冲的宽度,选择合适的延迟时间能够有效提高N₂分子的取向程度. 关键词： 双激光脉冲 分子取向 脉冲宽度     

Dynamic Alignment of D2 Enhanced by Two Few-cycle Pulses

利用数值方法求解D2分子刚性转子模型在超短飞秒激光脉冲作用下的薛定谔方程,计算了双原子分子D2在两束固定强度的飞秒激光脉冲作用下,延迟时间对于分子取向的影响.结果表明,只要选取合适的延迟时间,就能很好改善分子取向;保持两束激光强度不变,通过调整两束脉冲的宽度,选择合适的延迟时间能够进一步有效提高D2分子的取向程度.     

静电场与非共振脉冲激光电场共同作用下分子取向的机制

本文分析了静电场与非共振的线偏振激光脉冲电场共同作用下分子取向的机制,发现如果激光脉冲足够宽,当激光光强确定后,脉冲的形状对分子取向起着决定性的作用.文中进一步挖掘了这种现象背后分子取向的机制,得出了获得高效分子取向的必要条件,并建议将所得的结论应用于短脉冲下的‘post-pulse orientation'.     

Selective Alignment of D2 Induced by Two Ultrashort Laser Pulses

通过求解D₂分子在飞秒激光场中的含时薛定谔方程,研究了室温下D₂分子在超快飞秒激光驱动下的的转动波包动力学. 选择用第一束超短飞秒脉冲与温度为300 K的D₂分子系综相互作用产生一个相干转动波包,用第二束超短飞秒脉冲在波包的1/4和3/4恢复周期选择操纵D₂分子取向. 研究结果表明,通过选择两束超短飞秒脉冲的延迟时间,可以有效控制D₂分子转动波包中奇偶态的相对布居,从而选择性的控制D₂分子取向.     

静电场与非共振脉冲激光电场共同作用下分子取向的机制

本分析了静电场与非共振的线偏振激光脉冲电场共同作用下分子取向的机制，发现如果激光脉冲足够宽，当激光光强确定后，脉冲的形状对分子取向起着决定性的作用。中进一步挖掘了这种现象背后分子取向的机制，得出了获得高效分子取向的必要条件，并建议将所得的结论应用于短脉冲下的‘postpulse orientation’。     

双色激光脉冲辐照叠加态生成强的38 as孤立脉冲

采用多周期800 nm激光组合1 600 nm红外激光脉冲辐照氦离子He⁺叠加态生成强、短孤立阿秒脉冲. 结果表明,相对于800 nm单色激光辐照基态情形,截止频率由70次谐波大幅度展宽到280次谐波,且获得频宽为108 eV并由单一短量子路径贡献的连续辐射谱,叠加该连续谱210次到280次谐波获得了脉宽为38 as的强、短孤立脉冲,其强度比单色场情形提高了11个数量级. 研究进一步表明,两束激光脉冲的时间延迟从0.05π到－0.05π之间获得的孤立阿秒脉冲是最优化的,且脉冲持续时间 关键词： 组合激光脉冲 相干叠加态 阿秒脉冲     

Laser-induced Alignment and Coulomb Explosion of CO2

实验研究了CO₂分子在飞秒强激光脉冲作用下的动力学过程,包括分子取向,隧穿电离和库仑爆炸,激光强度从1×10¹³W/cm²变化到6×10¹⁴W/cm². 当激光强度小于分子的电离阈值时,CO₂分子的非绝热转动激发形成一个相干转动波包,波包演化导致分子沿激光电场方向取向. 激光脉冲结束后,分子取向可以周期性地再现,利用另一束激光可以对取向结构进一步进行修饰. 当激光强度大于分子     

由激光诱导荧光方法探测光碎片分子取向的理论研究

采用密度矩阵方法 ,推导了从激光诱导荧光 (LIF)强度中抽出光碎片取向参数的表达式 .光碎片的取向由分子态多极矩描述 .用于解离母分子和激发碎片分子的激光均为线偏振光 ,而探测荧光为非偏振光 .激光诱导荧光强度是光碎片分子初始态多极矩、线强度因子和解离—激发几何因子的函数 .光碎片的取向参数可以由测量荧光偏振比和计算动力学因子而获得     

双色激光脉冲辐照下38 as孤立短脉冲的产生

通过数值求解一维含时薛定谔方程, 本文研究了具有特定波长的双色激光脉冲与氦原子相互作用产生的高次谐波和阿秒脉冲, 这里双色激光脉冲由5 fs较低强度基频钛宝石主脉冲与另一束较高强度的1330 nm 红外附加脉冲构成. 研究发现, 若两束脉冲之间的相对相位选择合适, 可以获得宽带连续辐射的高次谐波谱, 叠加该连续辐射谱可获得脉宽为38 as的孤立短脉冲. 进一步研究发现, 不同于以往孤立阿秒脉冲研究中选出长、短量子路径之一作为辐射源, 这里单阿秒脉冲来源于长、短两个量子路径的贡献, 只是这两个量子路径在很宽的谐波次数变化范围内辐射时刻比较集中. 关键词： 双色激光脉冲 阿秒脉冲 量子路径     

Pair-Breaking Critical Current Density of Two-Band Superconductor MgB2

[1]J. Nagamatsu, N. Nakagava, T. Muranaka, Y. Zenitani,and J. Akimitsu, Nature 410 (2001) 63. [2]C. Buzea and T. Yamashita, Supercond. Sci. Techn. 14(2001) R115. [3]S. Budko, G. Lapertot, C. Petrovic, C.E. Gunningham, N.Anderson, and P.C. Canfield, Phys. Rev. Lett. 86 (2001)1877. [4]H. Kotegawa, K. Ishida, Y. Kitaoka, T. Muranaka, and J. Akimitsu, Phys. Rev. Lett. 87 (2001) 127001. [5]J. Kortus, I.I. Mazin, K.D. Belashchenko, V.P. Antropov,and L.L. Boyer, Phys. Rev. Lett. 87 (2001) 4656. [6]A. Liu, I.I. Mazin, and J. Kortus, Phys. Rev. Lett. 87(2001) 087005. [7]X.K. Chen, M.J. Konstantinovich, J.C. Irwin, D.D.Lawrie, and J.P. Frank, Phys. Rev. Lett. 87 (2001)157002. [8]H. Giublio, D. Roditchev, W. Sacks, R. Lamy, D.X.Thanh, J. Kleins, S. Miraglia, D. Fruchart, J. Markus,and P. Monod, Phys. Rev. Lett. 87 (2001) 177008. [9]F. Bouquet, R.A. Fisher, N.E. Phillips, D.G. Hinks, and J.D. Jorgensen, Phys. Rev. Lett. 87 (2001) 04700. [10]S.V. Shulga, S.-L. Drechsler, H. Echrig, H. Rosner, and W. Pickett, Cond-mat/0103154 (2001). [11]A.A. Golubov, J. Kortus, O.V. Dolgov, O. Jepsen, Y.Kong, O.K. Andersen, B.J. Gibson, K. Ahn, and R.K.Kremer, J. Phys. Condens. Matter 14 (2002) 1353. [12]H. Doh, M. Sigrist, B.K. Chao, and Sung-Ik Lee, Phys.Rev. Lett. 85 (1999) 5350. [13]I.N. Askerzade, N. Guclu, and A. Gencer, Supercond. Sci.Techn. 15 (2002) L13. [14]I.N. Askerzade, N. Guclu, A. Gencer, and A. Kiliq, Supercond. Sci. Techn. 15 (2002) L17. [15]I.N. Askerzade and A. Gencer, J. Phys. Soc. Jpn. 71(2002) 1637. [16]I.N. Askerzade, Physica C 397 (2003) 99. [17]V.V. Anshukova, B.M. Bulychev, A.I. Golovashkin, L.I.Ivanova, A.A. Minakov, and A.P. Rusakov, Phys. Solid State 45 (2003) 1207. [18]A.A. Abrikosov, Fundamentals of the Theory of Metals,North-Holland, Amsterdam (1988). [19]M.N. Kunchur, S.I. Lee, and W.N. Kang, Phys. Rev. B 68 (2003) 064516.     

Baikal neutrino telescope: Status, results, and prospects of development

The main physical results obtained with the Baikal neutrino telescope NT200 during the period 1998–2003 are reviewed: the limits for the diffuse flux of high-energy neutrinos, high-energy muons, and magnetic monopoles and the results of search for neutrinos from the center of the Earth due to annihilation of weakly interacting massive particles and from local neutrino sources. In April, 2005, the neutrino telescope NT200 was extended by introduction of three new strings, located at a distance of 100 m from the NT200 center. The new deep-water complex NT200+ has an effective volume for detecting cascades from high-energy neutrinos larger than that of NT200 by a factor of 4. At a cascade energy of 10 PeV, the effective volume of the new complex is 10⁷ m³. Further development of the Baikal neutrino experiment is related to the design and fabrication of a detector with a volume of about 1 km³. Original Russian Text ? K.V.Antipin, V.M. Ainutdinov, V.A. Balkanov, I.A. Belolaptikov, D.A. Borshchev, N.M. Budnev, R.V. Vasil’ev, R. Vishnevskii, I.A. Danil’chenko, G.V. Domogatskii, A.A. Doroshenko, A.P. D’yachok, Zh.-A.M. Dzhilkibaev, O.N. Gaponenko, K.V. Golubkov, O.A. Gress, T.I. Gress, O.I. Grishin, V.A. Zhukov, A.M. Klabukov, A.I. Klimov, A.A. Kochanov, K.V. Konishchev, A.P. Koshechkin, L.A. Kuz’michev, V.F. Kulepov, E. Middel, T. Mikokaiskii, M.B. Milenin, R.R. Mirgazov, S.P. Mikheev, E.A. Osipova, G.L. Pan’kov, L.V. Pan’kov, A.I. Panfilov, D.P. Petukhov, E.N. Pliskovskii, P.G. Pokhil, V.A. Poleshchuk, E.G. Popova, V.V. Prosin, M.I. Rozanov, V.Yu. Rubtsov, Yu.A. Semenei, B.A. Tarashchanskii, S.V. Fialkovskii, B.K. Shaibonov, A.A. Sheifler, A.V. Shirokov, K. Spiring, I.V. Yashin, 2007, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2007, Vol. 71, No. 4, pp. 597–601.     

Studying of hypernuclei with nuclotron beams

A spectrometer is created to study relativistic hypernuclei produced with beams of accelerated nuclei from the Nuclotron facility (Dubna, JINR). Test runs have been carried out and the conclusion is drawn that the properties of the facility meet the requirements of the task of searching for unknown and studying poorly known neutron-rich hypernuclei. Original Russian Text ? A.V. Averyanov, S.A. Avramenko, V.D. Aksinenko, M.Kh. Anikina, S.N. Bazylev, V.P. Balandin, Yu.A. Batusov, Yu.A. Belikov, Yu.T. Borzunov, O.V. Borodina, A.I. Golokhvastov, L.B. Golovanov, C. Granja, A.B. Ivanov, Yu.L. Ivanov, A.Yu. Isupov, Z. Kohout, A.M. Korotkova, A.G. Litvinenko, J. Lukstiņš, A.I. Malakhov, L. Majling, O. Majlingova, P.K. Manyakov, V.T. Matyushin, I.I. Migulina, G.P. Nikolaevsky, O.B. Okhrimenko, A.N. Parfenov, N.G. Parfenova, V.F. Peresedov, S.N. Plyashkevich, S. Pospišil, P.A. Rukoyatkin, I.S. Saitov, R.A. Salmin, V.M. Slepnev, I.V. Slepnev, M. Solar, B. Sopko, V. Sopko, E.A. Strokovsky, V.V. Tereshchenko, A.A. Feshchenko, T. Horazdovsky, D. Chren, Yu.A. Chencov, I.P. Yudin, 2008, published in Yadernaya Fizika, 2008, Vol. 71, No. 12, pp. 2137–2145.     

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Principles of Plasma Electrodynamics. By A. F. Alexandrov, L. S. Bogdankevich and A. A. Rukhadze. (Berlin: Springer-Verlag, 1984.) [Pp. xvi + 488.] DM135,-.

The Fundamental Physical Constants and Physical Measurement. By B. W. Petley. (Bristol: Adam Hilger Ltd., 1985.) [Pp. 346.] £28.50.

Resonance Ionization Spectroscopy 1984: Institute of Physics Conference Series. Edited by G. S. Hurst and M. G. Payne. (Bristol: Adam Hilger Ltd., 1984.) [Pp. ix + 362.] £32.00; $49.00. Scope: Postgraduate, Research worker. Level: Advanced.     

Physics potential and experimental challenges of the LHC luminosity upgrade

We discuss the physics potential and the experimental challenges of an upgraded LHC running at an instantaneous luminosity of 10³⁵ cm^-2s^-1. The detector R&D needed to operate ATLAS and CMS in a very high radiation environment and the expected detector performance are discussed. A few examples of the increased physics potential are given, ranging from precise measurements within the Standard Model (in particular in the Higgs sector) to the discovery reach for several New Physics processes. Received: 25 November 2003, Revised: 21 October 2004, Published online: 18 January 2005 Conveners: F. Gianotti, M.L. Mangano, T. Virdee Contributors: S. Abdullin, G. Azuelos, A. Ball, D. Barberis, A. Belyaev, P. Bloch, M. Bosman, L. Casagrande, D. Cavalli, P. Chumney, S. Cittolin, S.Dasu, A. De Roeck, N. Ellis, P. Farthouat, D. Fournier, J.-B. Hansen, I. Hinchliffe, M. Hohlfeld, M. Huhtinen, K. Jakobs, C. Joram, F. Mazzucato, G.Mikenberg, A. Miagkov, M. Moretti, S. Moretti, T. Niinikoski, A. Nikitenko, A. Nisati, F. Paige, S. Palestini, C.G. Papadopoulos, F. Piccinini, R. Pittau, G. Polesello, E. Richter-Was, P. Sharp, S.R. Slabospitsky, W.H. Smith, S. Stapnes, G. Tonelli, E. Tsesmelis, Z. Usubov, L. Vacavant, J. van der Bij, A. Watson, M. Wielers A. Nikitenko: On leave of absence from ITEP, Moscow, Russia. F. Piccinini: On leave of absence from INFN, Sezione di Pavia, Italy.     

Nuclear Superfluidity. Pairing in Finite Systems,by D.M. Brink and R.A. Broglia

Introduction to High Energy Physics. By D. H. Perkins. (Addison-Wesley, 1972.) [Pp. xiii + 353.] £4.30. Scope: Textbook. Level: Postgraduate. undergraduate.

Fundamentals of Aeronomy. By R. C. Whitten and I. G. Poppoff. (John Wiley, 1971). [Pp. xiv+446.] £7.00. Scope: Treatise/textbook. Level: Specialist/postgradute; undergraduate (3rd year).

Statistical Physics. By F. Mandl. (John Wiley &; Sons Ltd., 1971.) [Pp. xiii+379.] £2.75 (paper only). Scope: Textbook. Level: Undergraduate.

Basic Theory of Lasers and Masers. By J. Vanier. (Gorden &; Breach, 1971.) [Pp. xii+115.] Cloth £4.75; paper £2.25. Scope: Treatise. Level: For specialists only; specialist/postgraduate.

Concepts of Classical Mechanics. By L. R. B. Elton. (McGraw-Hill, 1971.) [Pp. xvii+177.] £2.60. Scope: Textbook. Level: Undergraduate.

College Physics. By E. Gillam and R. M. King. (Macdonald &; Evans Ltd., 1971.) Volume 1. [Pp. xvii+ 390.] £1.15. Volume 2. [Pp. xvii+404.] £1.25. Scope: Textbook. Level: Undergraduate.

Physical Science for Liberal Arts Students. By Hugo N. Swenson and J. E. Woods. (John Wiley &; Sons Ltd., 1971.) [Pp. viii+361.] £5.00. Scope: Textbook. Level: Undergraduate.

Natural Philosophy Through the Eighteenth Century. Edited by Allan Ferguson. (Taylor and Francis, 1972.) [Pp. vii+164.] £5.00.

Recent Advances in Plasma Diagnostics. Vol 1. Edited by V. T. Tolok. (Consultants Bureau, 1971.) [Vol. 1: vi+130.] $25.20. [Vol. 2: vi+105.] $25.20. [Vol. 3. vi+73.] Level: For specialists only.

Astronomy. By E. G. Ebbighusen. (Prentice Hall International, 1971.) [Pp. vii+ 150.] £1.00. Scope: Textbook. Level: Undergraduate; school.

Solid State Electronics. Edited by Edwin R. Jones. (Intertext Group of Publishers, 1971.) [Pp. x+398.] £5.50. Scope: Textbook. Level: Undergraduate.

Electronic Energy Bands in Solids. By L. Pincherle. (Macdonald, 1971.) [Pp. vi+196.] £4.00. Scope: Textbook. Level: postgraduate.

Advances in Nuclear Physics. Edited by Michel Baranger and Erich Vogt. (Plenum Press. 1971.) [Pp. xvi+448.] $2040. Scope: Survey. Level: Specialist/postgraduate.

Photophysics of Arowmtic Molecules. By J. B. Birks. (Wiley-Interscience, London). [Pp. xiii+704.] £10.50. Scope: Treatise. Level: Postgraduate.

Quench Hardening in Metals. By H. Kimura and R. Maddin. (North-Holland Publishing Company., 1971.) [Pp. ix+124.] $10.00. Scope: Treatise. Level: Specialist/postgraduate; undergraduate.

Thermodynamic Diagrams for High Temperature Plasmas of Air, Air-Carbon, Carbo-Hydrogen Mixtures, and Argon. By H. Kroepelin, K-K Neumann, K-U. Hoffmann and R. Kuthe. (Pergamon, 1971.) [Pp. xii+184.] £7.30. Scope: Library. Level: For specialists only.

The Plasma State. By Juda Leon Shohet. (Academic Press, 1971.) [Pp. viii+333.] £6.30. Scope: Treatise/textbook. Level: Specialist/postgraduate.

Kinetic Equations. Edited by R. L. Liboff and N. Rostoker. (Gordon and Breach, 1971.) [Pp. xv+346.] £8.16. Scope: Conference proceedings. Level: Specialist/postgraduate.

Hadronic Interactions of Electrons and Photons. Edited by J. Cummwa and H. Osbobn. Academic Press 1971.) [Pp. xvi+653.] £10.50. Scope: Conference Proceedings. Level: Postgraduate.

Concepts in Hadron Physics. Edited by P. Urbau. (Vienna and New York: Springer-Verlag, 1971.) [Pp. xv+424.] $26.40. Scope: Conference proceedings. Level: Specialist/postgraduate.

Certificate Physics. (SI Edition.) By C. W. Kearsey. (Longman, 1971.) [Pp. 383.] £1.16. Scope: Textbook. Level: School (O Level plus).

Force in Newton's Physics. By R. S. Westfall. (Macdonald, London; American Elsevier, New York, 1971.) [Pp. xii+579.] £10. Scope: Survey. Level: Specialist/post-graduate.

Elementary Quantum Mechanics. ByN. F. Mott. (Wykeham Publications (London) Ltd., 1972.) [Pp. viii+ 122.] Cloth £2.75; Paper £2. Scope: Textbook. Level: Undergraduate.

Electron Optics and Electron Microscopy. By P. W. Hawkes. (Taylor and Francis, London, 1972.) [Pp. xv+244.] £5. Scope: Textbook. Level: Specialist/postgraduate.

Selected Papers by Cecil Frank Powell. Edited by E. H. S. Burhop, W. O. Look and M. G. K. Menon. (North-Holland, 1972.) [Pp. xiii+455.] Dft 80.00, $25.00. Scope: Library. Level: General reader.

Rare Earths and Actinidea. (Conference Digest No. 3.) (The Institute of Physics, 1971.) [Pp. viii+ 252.] Scope: Conference proceedings. Level: Specialist/postgraduate.     

Quantum Field Theory and the Standard Model,by Matthew D. Schwartz

Molecular Optical Activity and the Chiral Discriminations. By S. F. Mason. (Cambridge University Press, 1982.) [Pp. viii + 273.] £20·00. Scope: Treatise/Textbook; Level: Specialist post-graduate.

Elements of Quantum Chemistry. By R. Zahradnik and R. Polak. (Plenum Press; SNTL, Prague, 1981.) [Pp. 462.] $39.50. Scope: Textbook.

Quantum Field Theory and Parastatistics. By Y. Ohnuki and S. Kamefuchi. (University of Tokyo Press/Springer-Verlag, 1982.) [Pp. xiv +489.] DM 154; $c.64.30. Scope:Treatise/Textbook; Level: For specialists only.

Quantum Fields. By N. N. Bogoliubov and D. V. Shirkov, translated by D. B. Pontecorvo.(Addison-WesleyiBenjamin Cummings, 1982.) [Pp. vii + 863.] £19.46. Scope:Treatise/Textbook; Level: Specialist post-graduate.

Handbuch der Physik Encyclopaedia of Physics. In English. Volume 31. Corpuscles and Radiation in Matter, 1. By T. Von Aberg, G. Howat, H. Siegbahn, L. Karlsson, J. A. R. Samson and A. F. Starace. Edited by W. Melhorn. (Springer-Verlag, 1982.) [Pp. xii + 630.] DM 328; $131.20. Scope: Library (reference); Level: For specialists and specialist post-graduate.

Group Theoretical Methods in Physics. Edited by M. Serdaroglu and E. Inono. (Springer-Verlag, 1983.) [Pp. xi + 569.1 DM 70; $30.20. Scope: Conference proceedings; Level: For specialists only.

Electron Correlation in Solids, Molecules and Atoms. Edited by J. T. Devreese and F. Brosens.(Plenum Press, 1983.) [Pp. xi + 435.] $55.00. Scope: Conference proceedings; Level: For specialists only, Specialist post-graduate.     

Gravitational radiation: the theoretical aspect

Abstract

Electron Spin Resonance. By N. M. Atherton. (Ellis Horwood, 1973.) [Pp. 438.] £11.50. Scope: Treatise/textbook. Level: Specialist/postgraduate; undergraduate.

The Riddle of the Pyramids. By Kurt Mendelssohn. (Thames and Hudson, 1974.) [Pp. 224. £3.50. Level: General reader.

Radioactivity in Nuclear Spectroscopy, Vol. 1. Editors, J. H. Hamilton and J. C. Manthuruthil. (Gordon &; Breach, 1972.) [Pp. xi+578.] £18.75. Scope: Conference Proceedings. Level: Specialist/postgraduate.

The Scanning Electron Microscope: Part I. The Instrument. By C. W. Oatley. (Cambridge University Press, 1972.) [Pp. viii+194.] £5.30. Scope: Treatise/textbook. Level: Specialist/postgraduate.

Louis de Broglie: sa Conception du Monde Physipue. Contributed papers, with a preface by M. Druon. (Gauthier-Villars, Paris, 1973.) [Pp. xxvii+387.] 160F.

Statistical Mechanics. By R. K. Pathria. (Pergamon, 1972.) [Pp. xiii+527.] £8.00. Scope: Treatise/textbook. Level: Specialist/graduate.

Market Survey for Nuclear Power in Developing Countries—A General Report printed by the International Atomic Energy Agency, Vienna. Price £6.00; U.S. dollar;15.00

Physical Models for Semiconductor Devices. By J. E. Carroll. (Edward Arnold, 1974.) [Pp. xvi+253.] £6.50 (Paper, £3.25). Scope: Textbook. Level: Undergraduate.

An Introduction to Linear Electric Circuits. By L. V. Kite. (Longman, 1974.) [xiii+290.] £3.95. Scope: Treatise/textbook. Level: Undergraduate.

Lecture Notes in Physics, Vol. 28: Lectures in Statistical Physics. Edited by W. C. Schieve and J. S. Turner. (Springer-Verlap: Berlin, Heidelberg and New York, 1974.) [Pp. vi+342.] DM34; about £5.75. Scope: Conference proceedings; treatise. Level: Specialist/post-graduate.

Scanning Electron Microscopy: Systems and Applications. Edited by W. C. Nixon. (The Institute of Physics, 1973.) [Pp. x+338.] £15.00. Scope: Conference proceedings. Level: Specialist/postgraduate.

Subatomic Physics. By H. Frauenfelder and E. M. Henley. (Prentice Hall, 1974.) [Pp. xv+554.] Scope: Treatise/textbook. Level: Specialist/post-graduate; undergraduate.

Channeling. Edited by D. V. Morgan. (John Wiley &; Sons, 1974.) [Pp. xv+486.] £11.75. Scope: Survey. Level: Specialist/postgraduate.

Principles of Heavy Current Engineering. By P. G. Lund and A. M. Howatson. (Chapman and Hall, 1974.) [Pp. 115.] Price: £1.65. Level: Undergraduate; School; General reader.

From Circuits to Computere. Edited by L. Solymar. (Chapman and Hall, 1974.) [Pp. 184.] £2.50. Level: Undergraduate; School; General reader.

Exciting Electrical Machines. By E. R. Laithwaite. (Pergamon, 1974.) [Pp. 68.] £0.60. Level: Undergraduate; School; General reader.

Microwave Spectroacopy of Free Radicals. By A. Carrington. (Academic Press, 1974.) [Pp. ix+264.] £4.50. Scope: Textbook; survey. Level: Post-graduate; research.

Optics. By E. Hecht and A. Zajac. (Addison-Wesley, 1974.) [Pp. viii+565.] Scope: Textbook; library. Level: General reader; undergraduate.

The Physics of Liquid Cystals. By P. G. de Gennes. (Clarendon Press: Oxford University Press, 1974.) [Pp. xi+333.] £11.50.

Mathemtical Methods for the Physical Sciencw. By K. F. Riley. (Cambridge University Press, 1974.) [Pp. xvi+533.] Cloth £8.75; paper £3.75. Scope: Textbook. Level: Undergraduate.

Human Engineering. By John Lenihan. (Wiedenfeld and Nicholson, 1974.) [Pp. 207.] £3.00. Level: Undergraduate, School, General reader.     

Nanoscale oscillatory fracture propagation in metallic glasses

We describe the oscillatory crack propagation for small propagation velocities at the atomistic scale that was recently observed for brittle metallic glasses [G. Wang, Y.T. Wang, Y.H. Liu, M.X. Pan, D.Q. Zhao, W.H. Wang, Appl. Lett. 89 (2006) 121909; G. Wang, D.Q. Zhao, H.Y. Bai, M.X. Pan, A.L. Xia, B.S. Han, X.K. Xi, Y. Wu, W.H. Wang, Phys. Rev. Lett. 98 (2007) 235501]. Based on a simple model of crack propagation [Y. Braiman, T. Egami, Phys. Rev. E, 77 (2008) 065101(R)], we derived and analyzed expressions for the feature size, oscillation period, and maximum strain accumulated in the material.