Determination of the magnetic structure of CePt2In7 by means of neutron diffraction

Article

关键词: CEIN3;   

DOI  :  10.1103/PhysRevB.95.161102

来源: SCIE

【 摘 要 】

The magnetic structure of the heavy fermion antiferromagnet CePt2In7 is determined using neutron diffraction. We find a magnetic wave vector q(M) = (1/2,1/2,1/2), which is temperature independent up to T-N = 5.5 K. A staggered moment of 0.45(1)mu(B) at 2 K resides on the Ce ion. The nearest-neighbor moments in the tetragonal basal plane are aligned antiferromagnetically. The moments rotate by 90 degrees. from one CeIn3 plane to another along the c axis. A much weaker satellite peak with an incommensurate magnetic wave vector q(M) = (1/2,1/2,0.47) seems to develop at low temperature. However, the experimental data available so far are not sufficient to draw a definitive conclusion about the possible coexistence of commensurate and incommensurate magnetic structures in this material.

【 授权许可】

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