Table Of Content52
Springer Series in Solid-State Sciences
Edited by Peter Fulde
Springer Series in Solid-State Sciences
Editors: M. Cardona P. Fulde H.-J. Queisser
Volume 40 Semiconductor Physics - An Introduction By K Seeger
Volume 41 The LMTO Method Muffin-Tin Orbitals and Electronic Structure
By H.L. Skriver
Volume 42 Crystal Optics with Spatial Dispersion, and Excitons
By V. M. Agranovich and V. L. Ginzburg
Volume 43 Resonant Nonlinear Interactions of Light with Matter
By V.S. Butylkin, A.E. Kaplan, Yu.G. Khronopulo, and E.1. Yakubovich
Volume 44 Elastic Media with Microstructure II Three-Dimensional Models
By lA. Kunin
Volume 45 Electronic Properties of Doped Semiconductors
By B. I. Shklovskii and A L. Efros
Volume 46 Topological Disorder in Condensed Matter
Editors: E Yonezawa and T. Ninomiya
Volume 47 Statics and Dynamics of Nonlinear Systems
Editors: G. Benedek, H. Bilz, and R Zeyher
Volume 48 Magnetic Phase Transitions
Editors: M. Ausloos and R J. Elliott
Volume 49 Organic Molecular Aggregates, Electronic Excitation
and Interaction Processes
Editors: P. Reineker, H. Haken, and H. C. Wolf
Volume 50 Multiple Diffraction of X-Rays in Crystals
By Shih-Lin Chang
Volume 51 Phonon Scattering in Condensed Matter
Editor: W. Eisenmenger, K LaBmann, and S. D6ttinger
Volume 52 Superconductivity in Magnetic and Exotic Materials
Editors: T. Matsubara and A. Kotani
Volume 53 Two-Dimensional Systems, Heterostmctures, and SuperJattices
Editors: G. Bauer, E Kuchar, and H. Heinrich
Volumes 1-39 are listed on the back inside cover
Superconductivity
in Magnetic
and Exotic Materials
Proceedings of the
Sixth Taniguchi International Symposium,
Kashikojima, Japan, November 14-18, 1983
Editors: T. Matsubara and A. Kotani
With 106 Figures
Springer-Verlag
Berlin Heidelberg New York Tokyo 1984
Professor Takeo Matsubara
Department of Physics, Kyoto University,
Faculty of Science, Kyoto 606, Japan
Professor Akio Kotani
Department of Physics, Osake University,
Faculty of Science, Toyonaka 560, Japan
Series Editors:
Professor Dr. Manuel Cardona
Professor Dr. Peter Fulde
Professor Dr. Hans-Joachim Queisser
Max-Planck-Institut fiir Festkorperforschung, Heisenbergstrasse 1
D-7000 Stuttgart 80, Fed. Rep. of Germany
ISBN-13 :978-3-642-82261-2 e-ISBN-13:978-3-642-82259-9
DOl: 10.1007/978-3-642-82259-9
Library of Congress Cataloging in Publication Data. Taniguchi International Symposium (6th: 1983: Kashiko
jima, Japan). Superconductivity in maguetic and exotic materials (Springer series in solid-state sciences; 52).
Includes index. 1. Superconductors-Magnetic properties-Congresses. 2. Ferromagnetic materiaIs-Congresses.
I. Matsubara, T. (Takeo), 1921-. II. Kotani, A. (Akio) , 1941-. III. Title. IV. Series. QC612.S8T36 1984
537.6'23 84-10649
This work is subject to copyright. All rights are reserved, whether the whole or part of the material is
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Munich.
© by Springer-Verlag Berlin Heidelberg 1984
Softcover reprint of the hardcover I st edition 1984
The use of registered names, trademarks, etc. in this publication does not imply, even in the absence
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and therefore free for general use.
2153/3130-543210
Preface
The sixth Taniguchi Symposium on the Theory of Condensed Matter was held
between 14-18 November 1983 at Kashikojima. Japan. During the Symposium,
about twenty participants lived together and discussed the magnetic super
conductors and related problems in an active and friendly atmosphere. This
volume contains the papers presented at this Symposium.
A strong impetus for organizing a Symposium of this subject is afforded
by recent intense interest and accumulated information on magnetic and other
novel superconductors newly discovered, and indeed the Symposium has pro
duced many excellent contributions to this very exciting field of condensed
matter theory, as reported in this volume.
In order to give the readers a general outline of the subject, a brief
sketch of the problem is made in the Introduction. Then the remainder of
this volume is divided into four Parts and an Appendix. Part I is devoted to
di scuss ions on several aspects of ferromagnetic superconductors includ ing
superconductivity in heavy fermion systems. Part II treats problems on anti
ferromagnetic superconductors. In Part III three papers on organic supercon
ductors are presented. Part IV includes discussions on the exotic supercon
ductors. The Appendix is concerned with the new research project towards
high Tc superconductors in Japan.
The last but not least remark is to mention the activity of the Taniguchi
Foundation whose support makes this Symposium possible. For many years Mr.
Toyosaburo Taniguchi, who is the former president of Toyobo Co. Ltd., has
supported various academic activities in the natural and human sciences. To
remind us afresh of his high philosophy, his speech delivered at the recep
tion in Kyoto after the Symposium is given in the Foreword.
On behalf of all the participants, we would like to express our hearty
thanks to Mr. Taniguchi and the Taniguchi Foundation.
March 1984 Takeo Matsubara· Akio Kotani
v
Foreword
Speech by Toyosaburo Taniguchi
Dr. Kubo, Chairman, Distinguished Guests, Ladies and Gentlemen:
I am very happy, pleased and honored to be here this evening with so many
distinguished friends, guests, and scholars from different parts of the
world.
The Taniguchi Foundation wishes to extend a warm and sincere welcome to
the many participants of the Sixth International Symposium on the Theory of
Condensed Matter; this was inaugurated five years ago through the dedicated
efforts of Dr. Ryogo Kubo, who is gracing us today with his presence.
Certainly mere words will not suffice to express the deep sense of grati
tude we owe Dr. Kubo, from whose ideas this Division, one of the 15 now in
existence, was created back in 1978.
It is also greatly appreciated that the continued success of this Divi
sion at ever higher levels contributes to enhancing the valuation of our
Foundation.
We are deeply indebted to Dr. Kubo and his associates for their unsung
and unstinting efforts which have been so crucial in rendering this particu
lar symposium possible.
Although the Symposium ended, we are convinced that what made our sympo
sium a success in the final analysis is neither the Foundation nor its foun
der, but the outstanding qualities and fine personalities of the partici
pants, who have been chosen and brought together by Dr. Kubo and his
committee.
In this sense, your words of praise, if any, should be directed to them
and to those who have directly or indirectly lent their support to this
program.
I am willing to accept your thanks if your words of praise are given me
for the dishes prepared by this top level hotel in Kyoto, for I have chosen
them personally.
Whenever I meet with the younger people participating in our symposia, I
am deeply impressed by the unselfish and sincere dedication and sense of
mission they display in pursuing the vocation they are in.
I sincerely hope and trust that even after ascending the climb to acade
mic fame within, say, the next 30 years, they sill perpetuate their ties,
join forces, and help to forge closer bonds of friendship and cooperation in
a manner that will make a major contribution to the well-being of mankind
and to permanent world peace.
VII
We would like to add that the number of the participants is being prefer
ab ly 1i mited to about 20 persons, the less the better, because we wi sh to
arrange for a close-knit community set-up.
Many participants have told us over the years that this arrangement has
been most successful, stimulating, productive, and truly worthwhile. We beg
your best understanding of these basic philosophies that guide us.
And, consequently, it is our hope that these symposia be continued, as
long as the fund permits, say, about ten years, unless an unexpected situa
tion arises.
In conclusion, 'tIe sincerely trust that all the participants, both Japa
nese and foreign, will return home bearing heartwarming memories of the Sym
posium and of the pleasant times we have enjoyed together.
Thank you.
VIII
Participants in the Taniguchi International Symposium,
November 14-18,1983 (at Kashikojima, Japan)
Seated (left to right)
K Yamaji A.Ron Mrs.Ron KLevin Mrs.Fenton Mrs.Umezawa E.Matsushita A.Kotani
S.Nakajima T.M.Rice
Standing (lift to right)
KMachida H.Nakanishi S.KSinha E.W.Fenton H.Umezawa T.Matsubara M.Tachiki
T. Koyama Y. Okabe Y. Suzumura K Okada
IX
Contents
Introduction. By A. Kotani and T. Matsubara ......................... .
Part I Ferromagnetic Superconductors
Neutron Scattering Studies of Magnetic Superconductorsl
By S.K. Sinha, H.A. Mook, O.A. Pringle, and D.G. Hinks
(With 6 Figures) .................................................. 14
A Theory for Ferromagnetic Superconductors. By H. Umezawa,
H. Matsumoto, and J.P. Whitehead (With 16 Figures) ................ 29
Superconductivity and Magnetism in Rare Earth and Actinide Compounds2
By M. Tachi ki (With 5 Figures) .................................... 53
Electromagnetic Properties of Ferromagnetic Superconductors
By A. Kotani and K. Okada (With 8 Figures) ........................ 64
Josephson Effect in Ferromagnetic Superconductors
By T. Koyama and M. Tachiki (With 2 Figures) 75
An Inhomogeneous Superconducting State in a Ferromagnetic Supercon-
ductor. By H. Nakanishi and K. Machida (With 9 Figures) ........... 85
Part II Antiferromagnetic Superconductors
Theory of Antiferromagnetic Superconductors. By K. Levin, M.J. Nass,
C. Ro, and G.S. Grest (With 2 Figures) ............................ 104
The Coexistence of Superconductivity and Antiferromagnetism
By J. Ashkenazi, C.G. Kuper, and A. Ron (With 1 Figure) 112
Effect of a Homogeneous Magnetic Field on One-Dimensional Antiferro-
magnetic Superconductors. By Y. Suzumura (With 6 Figures) ......... 117
lTopics on "Antiferromagnetic Superconductors" are also included.
2Topics on "Heavy Fermion Superconductors" are also included.
XI
Effect of Impurities on Antiferromagnetic Superconductors
By Y. Okabe (With 6 Figures) ...................................... 127
Part III Organic Superconductors
Organic Superconductors. By E.W. Fenton (With 8 Figures) 136
Theory of the SOW and Superconducting Phases in the Bechgaard Salts
By K. Yamaji (With 14 Figures) .................................... 149
Theory of Infrared Conductivity from Density Waves: (TMTSF)2C104
By E.W. Fenton (With 3 Figures) ................................... 167
Part I V BaPb1-xBix03 and Some Metal Hydrides
BaPb1_xBi~03 -- An Example of the Strong Coupling Limit of Supercon-
ductivlty? By T.M. Rice (With 3 Figures) .......................... 178
Superconductivity in Some Metal Hydrides. By E. Matsushita and
T. Matsubara (With 17 Figures) .................................... 189
Appendix
A New Research Project in Japan on Superconducting Materials
By S. Nakajima .................................................... 206
Index of Contributors ................................................. 211
XII
