Nonresonant x-ray magnetic scattering on rare-earth iron borates RFe3(BO3)4

被引：28

作者：

Hamann-Borrero, J. E. ^{[1
]}

Philipp, M. ^{[1
]}

Kataeva, O. ^{[1
,2
]}

Zimmermann, M. V. ^{[3
]}

Geck, J. ^{[1
]}

Klingeler, R. ^{[1
,4
]}

Vasiliev, A. ^{[5
]}

Bezmaternykh, L. ^{[6
]}

Buechner, B. ^{[1
]}

Hess, C. ^{[1
]}

机构：

[1] IFW Dresden, Leibniz Inst Solid State & Mat Res, D-01171 Dresden, Germany

[2] Russian Acad Sci, AE Arbuzov Organ & Phys Chem Inst, Kazan 420088, Russia

[3] Deutsch Elektronen Synchrotron DESY, Hamburger Synchrotronstrahlungslabor HASYLAB, D-22603 Hamburg, Germany

[4] Univ Heidelberg, Kirchhoff Inst Phys, D-69120 Heidelberg, Germany

[5] Moscow MV Lomonosov State Univ, Fac Phys, Low Temp Phys Dept, Moscow 119992, Russia

[6] Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 09期

关键词：

SINGLE-CRYSTALS; CROSS-SECTION; GDFE3(BO3)(4); NDFE3(BO3)(4); DIFFRACTION; MNF2;

D O I：

10.1103/PhysRevB.82.094411

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hard x-ray scattering experiments with a photon energy of 100 keV were performed as a function of temperature and applied magnetic field on selected compounds of the RFe3(BO3)4 family. The results show the presence of several diffraction features, in particular, nonresonant magnetic reflections in the magnetically ordered phase and structural reflections that violate the diffraction conditions for the low-temperature phase P3(1)21 of the rare-earth iron borates. The temperature and field dependence of the magnetic superlattice reflections corroborate the magnetic structures of the borate compounds obtained by neutron diffraction. The detailed analysis of the intensity and scattering cross section of the magnetic reflection reveals details of the magnetic structure of these materials such as the spin domain structure of NdFe3(BO3)(4) and GdFe3(BO3)(4). Furthermore we find that the correlation length of the magnetic domains is around 100 angstrom for all the compounds and that the Fe moments are rotated 53 degrees +/- 3 degrees off from the hexagonal basal plane in GdFe3(BO3)(4).

引用

页数：10

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