Neutron scattering study of the antiferroquadrupolar structure and order parameter of UPd3

K.A. McEwen; U. Steigenberger; K.N. Clausen; Y.J. Bi; M.B. Walker; C. Kappler

doi:10.1016/0921-4526(95)00081-J

Neutron scattering study of the antiferroquadrupolar structure and order parameter of UPd₃

K.A. McEwen, U. Steigenberger, K.N. Clausen, Y.J. Bi, M.B. Walker, C. Kappler

Research output: Contribution to journal › Journal article › Research

Abstract

UPd3 exhibits phase transitions at T-1 approximate to 7 K and T-2 approximate to 5 K. Polarised-neutron diffraction measurements showed that a structural modulation with wavevector (1/2, 0, 0) takes place below T-1. A more detailed neutron-diffraction study of this phase is reported: group-theory analysis of the results indicates that the ordered phase below T-1 is a triple-q antiferroquadrupolar structure involving Q(x2-y2), Q(xz) and Q(zz) quadrupole moments of the uranium ions.

Original language	English
Journal	Physica B: Condensed Matter
Volume	213/214
Pages (from-to)	128-130
ISSN	0921-4526
DOIs	https://doi.org/10.1016/0921-4526(95)00081-J
Publication status	Published - 1995

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10.1016/0921-4526(95)00081-J

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title = "Neutron scattering study of the antiferroquadrupolar structure and order parameter of UPd3",

abstract = "UPd3 exhibits phase transitions at T-1 approximate to 7 K and T-2 approximate to 5 K. Polarised-neutron diffraction measurements showed that a structural modulation with wavevector (1/2, 0, 0) takes place below T-1. A more detailed neutron-diffraction study of this phase is reported: group-theory analysis of the results indicates that the ordered phase below T-1 is a triple-q antiferroquadrupolar structure involving Q(x2-y2), Q(xz) and Q(zz) quadrupole moments of the uranium ions. ",

keywords = "Materialer med s{\ae}rlige fysiske og kemiske egenskaber",

author = "K.A. McEwen and U. Steigenberger and K.N. Clausen and Y.J. Bi and M.B. Walker and C. Kappler",

year = "1995",

doi = "10.1016/0921-4526(95)00081-J",

language = "English",

volume = "213/214",

pages = "128--130",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

}

TY - JOUR

T1 - Neutron scattering study of the antiferroquadrupolar structure and order parameter of UPd3

AU - McEwen, K.A.

AU - Steigenberger, U.

AU - Clausen, K.N.

AU - Bi, Y.J.

AU - Walker, M.B.

AU - Kappler, C.

PY - 1995

Y1 - 1995

N2 - UPd3 exhibits phase transitions at T-1 approximate to 7 K and T-2 approximate to 5 K. Polarised-neutron diffraction measurements showed that a structural modulation with wavevector (1/2, 0, 0) takes place below T-1. A more detailed neutron-diffraction study of this phase is reported: group-theory analysis of the results indicates that the ordered phase below T-1 is a triple-q antiferroquadrupolar structure involving Q(x2-y2), Q(xz) and Q(zz) quadrupole moments of the uranium ions.

AB - UPd3 exhibits phase transitions at T-1 approximate to 7 K and T-2 approximate to 5 K. Polarised-neutron diffraction measurements showed that a structural modulation with wavevector (1/2, 0, 0) takes place below T-1. A more detailed neutron-diffraction study of this phase is reported: group-theory analysis of the results indicates that the ordered phase below T-1 is a triple-q antiferroquadrupolar structure involving Q(x2-y2), Q(xz) and Q(zz) quadrupole moments of the uranium ions.

KW - Materialer med særlige fysiske og kemiske egenskaber

U2 - 10.1016/0921-4526(95)00081-J

DO - 10.1016/0921-4526(95)00081-J

M3 - Journal article

VL - 213/214

SP - 128

EP - 130

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

ER -

Neutron scattering study of the antiferroquadrupolar structure and order parameter of UPd3

Abstract

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Neutron scattering study of the antiferroquadrupolar structure and order parameter of UPd₃