摘要:

Summary

ISSN:0010-7514    

DOI:10.1080/00107517908227799

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

The generation of acoustic signals following optical absorption in gases and solids is described. Important parameters in the design of cells and their relationships to detection sensitivity and limiting noise signals are discussed. Examples are given of important applications of the optoacoustic effect in pollution monitoring, the measurement of lifetimes and gas-phase and solid state spectroscopy.

ISSN:0010-7514    

DOI:10.1080/00107517908227800

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

Laser induced multiphoton processes are reviewed. The effects of strong fields on atoms are discussed. The perturbation treatment is presented and also its generalization to treat intermediate resonances. Atomic ionization experiments are reviewed and the present understanding of multiphoton dissociation of molecules is explained. Finally some prospects for the future are discussed.

ISSN:0010-7514    

DOI:10.1080/00107517908227801

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

This article discusses the contribution to the specific heat capacity that arises from thermal fluctuations in a magnetically-ordered solid. It considers three temperature ranges, (a) below, (6) in the neighbourhood of, and (c) aboveTewhich is the critical temperature for the existence of the magnetic ordering. For the lowest of these ranges spin-wave theory is applied, and the successes and shortcomings of simple spin-wave dispersion relations and of simple power-law expressions are discussed. Next, more realistic spin-wave dispersion relations, the renormalisation of spin-wave energies, and the properties of low-dimensional magnets are considered. For temperatures aroundTethe discussion is based on the use of critical exponents. AboveTethe magnetic specific heat capacity is related to the magnetic entropy associated with the persistence of short-range magnetic order.

ISSN:0010-7514    

DOI:10.1080/00107517908227802

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107517908227803

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107517908227804

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107517908227805

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

摘要:

Statistical Mechanics; Part B: Time-dependent Processes.By B. J. BERNE. (Plenum Publishing Corporation, 1977.) [Pp. xv+362.] $47.40. Scope: Textbook/Treatise. Level: Advanced (research)

ISSN:0010-7514    

DOI:10.1080/00107517908227806

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107517908227807

出版商:Taylor & Francis Group    

年代:1979

数据来源: Taylor