Búsqueda | Portal Regional de la BVS

1.

Spin-singlet clusters in the ladder compound NaV2O5

de Boer JL; Meetsma A; Baas J; Palstra TT.

Phys Rev Lett ; 84(17): 3962-5, 2000 Apr 24.

Artículo en Inglés | MEDLINE | ID: mdl-11019250

RESUMEN

The space group of alpha(')-NaV2O5 turns below T(c) = 34 K from Pmmn with all V sites equivalent, into Fmm2 with three independent vanadium sites per layer. This is incompatible with models of charge ordering into V4+ and V5+. Our structure determination indicates that the phase transition consists of a charge ordering with three distinct valence states, formally V4+, V4.5+, and V5+. The singlet formation is not associated with dimerization on the spin ladder, but with the formation of spin clusters. Finally, we ascribe the quadrupling of the c axis to the large polarizability of the V2O5 skeleton.

2.

Modulated structure of NiTa2Se7 in its incommensurate charge-density-wave state at 16 K.

Spijkerman A; Meetsma A; de Boer JL; Gao Y; van Smaalen S.

Phys Rev B Condens Matter ; 52(6): 3892-3899, 1995 Aug 01.

Artículo en Inglés | MEDLINE | ID: mdl-9981513

3.

Observation of the Sliding Mode in Incommensurate Intergrowth Compounds: Brillouin Scattering from the Inclusion Compound of Urea and Heptadecane.

Schmicker D; van Smaalen S; de Boer JL; Haas aC; Harris KD.

Phys Rev Lett ; 74(5): 734-737, 1995 Jan 30.

Artículo en Inglés | MEDLINE | ID: mdl-10058834

4.

Disorder in the commensurate intergrowth compound C1TET-TTF(AuI2)0.8.

Lamfers H; Meetsma A; van Smaalen S; de Boer JL; Huml K.

Phys Rev B Condens Matter ; 50(21): 15697-15706, 1994 Dec 01.

Artículo en Inglés | MEDLINE | ID: mdl-9975934

5.

Structure of a polytype of the inorganic misfit-layer compound (PbS)1.18TiS2.

van Smaalen S; de Boer JL.

Phys Rev B Condens Matter ; 46(5): 2750-2757, 1992 Aug 01.

Artículo en Inglés | MEDLINE | ID: mdl-10003961

6.

Ion-beam channeling in a quasicrystal.

du Marchie van Voorthuysen EH; Smulders PJ; Werkman RD; de Boer JL; van Smaalen S.

Phys Rev B Condens Matter ; 45(17): 9667-9670, 1992 May 01.

Artículo en Inglés | MEDLINE | ID: mdl-10000850

7.

Determination of the structural distortions corresponding to the q1- and q2-type modulations in niobium triselenide NbSe3.

van Smaalen S; de Boer JL; Meetsma A; Graafsma H; Sheu HS; Darovskikh A; Coppens P; Levy F.

Phys Rev B Condens Matter ; 45(6): 3103-3106, 1992 Feb 01.

Artículo en Inglés | MEDLINE | ID: mdl-10001863

8.

Comment on "Charge-density-wave structure in NbSe3 determined by scanning tunneling microscopy"

Van Smaalen S; de Boer JL; Coppens P; Graafsma H.

Phys Rev Lett ; 67(11): 1471, 1991 Sep 09.

Artículo en Inglés | MEDLINE | ID: mdl-10044159

9.

Order-disorder transition in silver-intercalated niobium disulfide compounds. I. Structural determination of Ag0.6NbS2.

van der Lee A; van Smaalen S; Wiegers GA; de Boer JL.

Phys Rev B Condens Matter ; 43(12): 9420-9430, 1991 Apr 15.

Artículo en Inglés | MEDLINE | ID: mdl-9996635

10.

Six-dimensional structure model for the icosahedral quasicrystal Al6CuLi3.

van Smaalen S; de Boer JL; Shen Y.

Phys Rev B Condens Matter ; 43(1): 929-937, 1991 Jan 01.

Artículo en Inglés | MEDLINE | ID: mdl-9996287

11.

Determination of the crystal structure of icosahedral Al-Cu-Li.

Elswijk HB; De Hosson JT; van Smaalen S; de Boer JL.

Phys Rev B Condens Matter ; 38(3): 1681-1685, 1988 Jul 15.

Artículo en Inglés | MEDLINE | ID: mdl-9946451

12.

Anisotropic thermal expansion in crystals with stacks of planar molecules, such as tetracyanoquinodimethanide (TCNQ) salts.

van Smaalen S; de Boer JL; Haas C; Kommandeur J.

Phys Rev B Condens Matter ; 31(6): 3496-3503, 1985 Mar 15.

Artículo en Inglés | MEDLINE | ID: mdl-9936240

RESUMEN

ENVIAR RESULTADO:

SELECCIÓN DE REFERENCIAS

DETALLE DE LA BÚSQUEDA