Book reviews

Abstract

Four book reviews in the May 2004 issue of Notes and Records P.M. Harman, The natural philosophy of James Clerk Maxwell . Crosbie Smith, The science of energy. A cultural history of energy physics in Victorian Britain . H.A. Bethe, Selected works of Hans A. Bethe, with commentary . Mario A.J. Mariscotti, El secreto atómico de Humuel. Cronica del origen de la energia atómica en la Argentina.

High Magnetic Fields: A Tool for Studying Electronic Properties of Layered Organic Metals

“…198 On the other hand, Falicov and Stachowiak 199 have shown that the dHvA effect can still be satisfactorily described by considering quasiclassical electron wave packets that move on all possible closed orbits, that is, return back to a starting point using all possible paths in the MB network. In this approach, the initial wave of unit amplitude entering a MB junction is separated into a transmitted wave with amplitude υ and a reflected wave with amplitude ξ, such that 200,201 The conservation of particles leads to the phase difference of π/2 between the transmitted and reflected waves. While the absolute phases are not defined, it is conventionally assumed [199][200][201] that the reflected phase preserves the initial phase and the transmitted one changes by π/2.…”

“…In this approach, the initial wave of unit amplitude entering a MB junction is separated into a transmitted wave with amplitude υ and a reflected wave with amplitude ξ, such that 200,201 The conservation of particles leads to the phase difference of π/2 between the transmitted and reflected waves. While the absolute phases are not defined, it is conventionally assumed [199][200][201] that the reflected phase preserves the initial phase and the transmitted one changes by π/2. It is therefore convenient to rewrite the tunneling amplitude as iυ.…”

“…Among them are the difference combination frequencies F β -nF R which are not allowed in the framework of the standard MB theory. 22,[198][199][200][201] Figure 30 demonstrates an example of the Fourier spectrum of the dHvA oscillations in κ-(BEDT-TTF) 2 Cu(NCS) 2 recorded at T ) 0.4 K in the field window between 20 and 27 T. 282 The spectrum is dominated by the contributions from the classical orbit R and from the main MB orbit β. The peak at F β + F R can also be attributed to the MB orbit consisting of the MB β-loop plus classical R-loop.…”

History and Introduction

“…At the same time, Fritz London suggested a quanrum mechanical approach to justify what is now known as the London equation [6]. Only after World War II, Pippard recognized that although Tc was not much influenced by impurities, the penetration depth was indeed and thus implied a significant modifi.cation of the original London equation [7]. Another significant theoretical advance, in 1950, was the Ginzburg-Landau superconducting free energy expression based on Landau's theory of second-order phase transitions [8].…”