TY - JOUR
T1 - Recent developments in critical magnetic behaviour
AU - Aharony, A.
N1 - Funding Information:
I have benefitted from many discussions with a large majority of the people whose names appear in the list of references. Most of these are also acknowledged for sending me preprints of their work prior to publication. This work was supported by a grant from the United States - Israel Binational Foundation (BSF), Jerusalem, Israel.
PY - 1977/1/1
Y1 - 1977/1/1
N2 - Competition between various types of interaction leads to complex phase diagrams, exhibiting multicritical points. Bicritical points appear due to uniaxial assymmetry, resulting e.g. from uniaxial stress. These may become tetracritical when cubic symmetry exists. Tricritical and bicritical points appear in metamagnets. Tetracritical points exist for randomly mixed ferromagnets and antiferromagnets. Competing interactions also lead to new types of critical behaviour, e.g. "dipolar", "cubic", etc. All of these may be affected by interactions with elastic degrees of freedom, random impurities, etc. Present theoretical understanding of these phenomena, based mainly on renormalization group arguments, is reviewed, and relevant experiments are mentioned.
AB - Competition between various types of interaction leads to complex phase diagrams, exhibiting multicritical points. Bicritical points appear due to uniaxial assymmetry, resulting e.g. from uniaxial stress. These may become tetracritical when cubic symmetry exists. Tricritical and bicritical points appear in metamagnets. Tetracritical points exist for randomly mixed ferromagnets and antiferromagnets. Competing interactions also lead to new types of critical behaviour, e.g. "dipolar", "cubic", etc. All of these may be affected by interactions with elastic degrees of freedom, random impurities, etc. Present theoretical understanding of these phenomena, based mainly on renormalization group arguments, is reviewed, and relevant experiments are mentioned.
UR - http://www.scopus.com/inward/record.url?scp=49449128870&partnerID=8YFLogxK
U2 - 10.1016/0378-4363(77)90592-7
DO - 10.1016/0378-4363(77)90592-7
M3 - Article
AN - SCOPUS:49449128870
SN - 0378-4363
VL - 86-88
SP - 545
EP - 549
JO - Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics
JF - Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics
IS - PART 2
ER -