Pressure Induced Change in the Magnetic Modulation of CeRhIn5

Details Pressure Induced Change in the Magnetic Modulation of CeRhIn5 Pressure Induced Change in the Magnetic Modulation of CeRhIn5

2002-05-31

arxiv.org/abs/cond-mat/0205667v2

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 3 figures included

Scientific paper

10.1103/PhysRevB.66.212502

We report the results of a high pressure neutron diffraction study of the heavy fermion compound CeRhIn5 down to 1.8 K. CeRhIn5 is known to order magnetically below 3.8 K with an incommensurate structure. The application of hydrostatic pressure up to 8.6 kbar produces no change in the magnetic wave vector qm. At 10 kbar of pressure however, a sudden change in the magnetic structure occurs. Although the magnetic transition temperature remains the same, qm increases from (0.5, 0.5, 0.298) to (0.5, 0.5, 0.396). This change in the magnetic modulation may be the outcome of a change in the electronic character of this material at 10 kbar.

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