Stabilization of commensurate antiferromagnetism in CePt2In7 by pressure up to 2.4 GPa: 115In NMR and NQR under zero field

被引：21

作者：

Sakai, H. ^{[1
]}

Tokunaga, Y. ^{[1
]}

Kambe, S. ^{[1
]}

Lee, H. -O. ^{[2
]}

Sidorov, V. A. ^{[2
]}

Tobash, P. H. ^{[2
]}

Ronning, F. ^{[2
]}

Bauer, E. D. ^{[2
]}

Thompson, J. D. ^{[2
]}

机构：

[1] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW B | 2011年 / 83卷 / 14期

关键词：

MAGNETIC-STRUCTURE; HEAVY; SUPERCONDUCTIVITY; CERHIN5; CEPD2SI2; STATE;

D O I：

10.1103/PhysRevB.83.140408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Zero-field In-115-nuclear magnetic resonance (NMR) has been used to study single crystals of CePt2In7, a heavy-fermion antiferromagnet with a Neel temperature (T-N) of 5.2 K at ambient pressure. Narrow linewidths of In-115-nuclear quadrupolar resonance spectra are observed from each of three crystallographically inequivalent In(1), In(2), and In(3) sites. The NMR spectra under zero field near the 3 nu(Q) line of the orthorhombic In(3) sites are tracked by temperatures down to 1.6 K and by hydrostatic pressures up to 2.4 GPa. These data reveal the coexistence of commensurate and incommensurate antiferromagneic orders at ambient pressure and that the commensurate ordering is stabilized by increasing pressures where bulk superconductivity emerges.

引用

页数：4

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