% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Chang:15570, author = {Chang, L. J. and Schweika, W. and Kao, Y.-J. and Chou, Y. Z. and Perßon, J. and Brückel, T. and Yang, H. C. and Chen, Y. Y. and Gardner, J. S.}, title = {{M}agnetic correlations in {H}ox{T}b2-x{T}i2{O}7}, journal = {Physical review / B}, volume = {83}, number = {14}, issn = {1098-0121}, address = {College Park, Md.}, publisher = {APS}, reportid = {PreJuSER-15570}, pages = {144413}, year = {2011}, note = {This work was supported in Taiwan by Grants No. NSC 96-2739-M-213-001, No. NSC 99-2112-M-007-020 (LJC), No. NSC 97-2628-M-002-011-MY3, and No. NTU 98R0066-65, -68 (Y.Z.C. and Y.J.K.).}, abstract = {Polycrystalline samples of HoxTb2-xTi2O7 (0 < x < 2) have been prepared and characterized for their structural and magnetic properties. The parent compounds of this solid solution are the spin ice Ho2Ti2O7 and the spin liquid Tb2Ti2O7. Specific-heat measurements on HoTbTi2O7 (x = 1.0) reveal the absence of a long-range order state above 0.5 K. The integrated entropies of all HoxTb2-xTi2O7 specimens up to 30 K scale well with the ratio of spin ice and spin liquid in the composition. The neutron diffraction spectrum of HoTbTi2O7 exhibits a dipolar spin-ice pattern and can be well described by mean-field theory for < 111 > Ising spins, nearest-neighbor exchange, and dipolar interactions. Inelastic neutron scattering on HoTbTi2O7 reveals two dispersionless excitations, one of similar to 2.5 meV out of the ground state, and a 4-meV transition out of an excited state. We argue that these data suggest that the very strong single-ion effects of Ho2Ti2O7 and Tb2Ti2O7 persist in the HoxTb2-xTi2O7(0 < x < 2) solid solution, whereas the Tb-Ho correlations are weak, resulting in small shifts in the energy scales but with no dramatic effect on the bulk properties.}, keywords = {J (WoSType)}, cin = {PGI-4 / JCNS-2 / JARA-FIT}, ddc = {530}, cid = {I:(DE-Juel1)PGI-4-20110106 / I:(DE-Juel1)JCNS-2-20110106 / $I:(DE-82)080009_20140620$}, pnm = {Grundlagen für zukünftige Informationstechnologien / Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI)}, pid = {G:(DE-Juel1)FUEK412 / G:(DE-Juel1)FUEK415}, experiment = {EXP:(DE-MLZ)DNS-20140101}, shelfmark = {Physics, Condensed Matter}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000291973500004}, doi = {10.1103/PhysRevB.83.144413}, url = {https://juser.fz-juelich.de/record/15570}, }