ISSN:0010-7514    

DOI:10.1080/00107516008204430

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

摘要:

A new kind of experiment is described which measures the ‘effective mass’ of mobile electrons in semiconductors and metals. Samples are placed in a magnetic field which causes the charge carriers to move in circular paths, and a microwave oscillating electric field accelerates them in the same way as charged particles in a vacuum are accelerated in a cyclotron. The effective mass thus determined measures the momentum transfer between the crystal lattice and the electron waves and thus gives detailed information about the nature of the conduction electron states.

ISSN:0010-7514    

DOI:10.1080/00107516008204431

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

摘要:

In this article I have tried to give an account of x-ray crystallography as a new subject which is still rapidly expanding. Without any doubt it is an important subject because it is the main method for examining the solid state on an atomic scale. It is an absorbing subject because the fundamental problem of interpreting the experimental evidence still exists and therefore intellectual effort must be put into understanding the scientific principles as well as in deriving results. This effort is at present mainly mathematical, and many people believe that it is probable that the ultimate solution must come through mathematics. But in this article I have endeavoured to show that the subject is essentially a physical one, and have described the physical procedures that I hope will reach the winning post first!

ISSN:0010-7514    

DOI:10.1080/00107516008204432

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

摘要:

The fundamental concepts of magnetohydrodynamics are presented, and Alfvén waves are discussed in terms of a simple physical picture. The applications of magnetohydrodynamic wave theories are shown to give explanations of astrophysical phenomena, and experimental evidence for the basic theory is described.

ISSN:0010-7514    

DOI:10.1080/00107516008204433

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107516008204434

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107516008204435

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107516008204436

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107516008204437

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107516008204438

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

ISSN:0010-7514    

DOI:10.1080/00107516008204439

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor