Jan’s Publications

@article{WOS:A1996UL10900002,

title = {Striped phase in the cuprates as a semiclassical phenomenon},

author = {J Zaanen and AM Oles},

issn = {0003-3804},

year  = {1996},

date = {1996-01-01},

journal = {ANNALEN DER PHYSIK},

volume = {5},

number = {3},

pages = {224-246},

publisher = {JOHANN AMBROSIUS BARTH VERLAG},

address = {IM WEIHER 10, D-69121 HEIDELBERG, GERMANY},

abstract = {The striped phase, a novel type of electron solid, has been observed 

 recently in a number of doped Mott-Hubbard insulators (including 

 cuprates). This solid consists of a parallel array of charged-domain 

 walls, bound states of carriers and Neel walls in the antiferromagnetic 

 spin system. The existence of these states has been predicted well in 

 advance of their experimental observation on the basis of semiclassical 

 ('Hartree-Fock') theory. Nevertheless, it is not at all clear whether 

 semiclassics yields a correct explanation. In this paper we will focus 

 especially on the variety of striped phases realized in the cuprates, 

 characterized by a domain wall filling of half a hole per domain wall 

 unit cell. We will unfold the reasons why semiclassics, as applied to 

 simple Hubbard models, favours strongly a filling of one hole per domain 

 wall unit cell, as is for instance the case in the nickelates. 

 Nevertheless, the occurrence of half-filled walls as semiclassical 

 ground states cannot be excluded on general grounds. It might be that 

 Hubbard models do not incorporate the microscopic situation correctly. 

 Instead, we derive a qualitative criterion: in order to acquire a 

 special stability on the semiclassical level, the half-filled domain 

 walls should be characterized by a quadrupling of the period along the 

 walls, involving a modulation in the longitudinal spin- and/or charge 

 channel.},

keywords = {high T-c superconductivity; Hubbard models; magnetic fluctuations},

pubstate = {published},

tppubtype = {article}

}