Observation of a spin reorientation in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">TbCu</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">Ge</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span> from resonant and nonresonant x-ray scattering

C. Song; D. Johnson; D. Wermeille; A. I. Goldman; S. L. Bud’ko; I. R. Fisher; P. C. Canfield

doi:10.1103/PhysRevB.64.224414

Observation of a spin reorientation in ${TbCu}_{2} {Ge}_{2}$ from resonant and nonresonant x-ray scattering

C. Song, D. Johnson, D. Wermeille, A. I. Goldman, S. L. Bud’ko, I. R. Fisher, and P. C. Canfield

Phys. Rev. B 64, 224414 – Published 20 November 2001

Abstract

Resonant and nonresonant magnetic x-ray scattering measurements have been carried out on a single crystal of ${TbCu}_{2} {Ge}_{2} .$ dc susceptibility measurements on single crystals clearly showed two transitions at $T_{N} = 12.3 K$ and $T_{t} = 9.6 K .$ The temperature dependence of both the resonant and nonresonant magnetic scattering were fit self-consistently and revealed a reorientation of the moments in the basal plane from $[110]$ below $T_{t},$ to $[010]$ for temperatures $T_{t} < T < T_{N} .$ The temperature dependence of the rotation angle has been extracted based on a simple model for the magnetic structure.

Received 19 February 2001

DOI:https://doi.org/10.1103/PhysRevB.64.224414

Authors & Affiliations

C. Song, D. Johnson, D. Wermeille, A. I. Goldman, S. L. Bud’ko, I. R. Fisher^*, and P. C. Canfield

Ames Laboratory-US DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011

^*Present address: Laboratory for Advanced Materials and Department of Applied Physics, Stanford University, Stanford, California 94305-4045.

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Vol. 64, Iss. 22 — 1 December 2001

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