摘要:

Over the past three decades it has been demonstrated that pressure is a very useful tool for investigating electronic phenomena in condensed systems. Compression results in different degrees of perturbation of different types of orbitals. This ‘pressure tuning’ can induce electronic transitions to new ground states. It can also be used for critical tests of theories or to uncover hitherto unforeseen correlations involving electronic properties.

ISSN:0144-235X    

DOI:10.1080/01442358209353334

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

This review discusses the recent experimental heat capacity measurements which have been very useful in physicochemical investigations. Areas reviewed include critical point phenomena in systems such as fluids, magnetic systems, liquid crystals, co-operative Jahn-Teller transitions, etc. The uses ofCpmeasurements in the study of discrete energy levels in solids, in glasses at very low temperatures, in thin films and at high pressures are discussed. Calorimetric investigations in A-15 and other superconducting materials and applications ofCpmeasurements for evaluation of thermodynamic parameters in several new classes of materials are then briefly described. Finally, examples of applications of calorimetry in areas of biophysics, biological sciences and clinical medicine are cited. Two hundred and seventy references are cited and 25 figures are used for illustration.

ISSN:0144-235X    

DOI:10.1080/01442358209353335

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

The aim of this article is to describe the factors that determine the types of ground states in crystals with localized electron pairs, or bipolarons. We consider the concentration of the electron pairs and parameters describing the lattice polarization due to the bipolaron-phonon interaction, together with parameters for the possible ground states. All the parameters and the bipolaron concentration must be self-consistently related. The conditions that favour the disordered and superconducting states, and the charge-ordered states, of such crystals are presented.

ISSN:0144-235X    

DOI:10.1080/01442358209353336

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

Geoffrey C. Maitland, Maurice Rigby, E. Brian Smith and W. A. Wakeham.Intermolecular Forces, Oxford: Clarendon Press, 1981. 616 pp. £39.50. ISBN 0-19-855611-X.

ISSN:0144-235X    

DOI:10.1080/01442358209353337

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor