1.
Phys Rev Lett
; 84(13): 2969-72, 2000 Mar 27.
Article
in English
| MEDLINE
| ID: mdl-11018988
ABSTRACT
The oxygen-deficient double perovskite YBaCo2O5, containing corner-linked CoO5 square pyramids as principal building units, undergoes a paramagnetic to antiferromagnetic spin ordering at 330 K. This is accompanied by a tetragonal to orthorhombic distortion. Below 220 K orbital ordering and long-range Co(2+)/Co(3+) charge ordering occur as well as a change in the Co2+ spin state from low to high spin. This transition is shown to be very sensitive to the oxygen content of the sample. To our knowledge this is the first observation of a spin-state transition induced by long-range orbital and charge ordering.
2.
3.
Phys Rev B Condens Matter
; 51(21): 15407-15414, 1995 Jun 01.
Article
in English
| MEDLINE
| ID: mdl-9978500
4.
Phys Rev B Condens Matter
; 51(17): 11784-11790, 1995 May 01.
Article
in English
| MEDLINE
| ID: mdl-9977919
5.
Phys Rev B Condens Matter
; 51(1): 547-552, 1995 Jan 01.
Article
in English
| MEDLINE
| ID: mdl-9977117
6.
Phys Rev B Condens Matter
; 50(17): 12752-12759, 1994 Nov 01.
Article
in English
| MEDLINE
| ID: mdl-9975441
7.
Phys Rev B Condens Matter
; 50(5): 3221-3229, 1994 Aug 01.
Article
in English
| MEDLINE
| ID: mdl-9976571
8.
Phys Rev B Condens Matter
; 49(9): 6239-6245, 1994 Mar 01.
Article
in English
| MEDLINE
| ID: mdl-10011609
9.
Phys Rev B Condens Matter
; 49(6): 4163-4175, 1994 Feb 01.
Article
in English
| MEDLINE
| ID: mdl-10011314
10.
Phys Rev B Condens Matter
; 48(17): 12941-12950, 1993 Nov 01.
Article
in English
| MEDLINE
| ID: mdl-10007670
11.
Phys Rev B Condens Matter
; 48(1): 499-510, 1993 Jul 01.
Article
in English
| MEDLINE
| ID: mdl-10006800