Lattice distortion and magnetic quantum phase transition in CeFeAs1-xPxO

Clarina De La Cruz; W. Z. Hu; Shiliang Li; Q. Huang; J. W. Lynn; M. A. Green; G. F. Chen; N. L. Wang; H. A. Mook; Qimiao Si; Pengcheng Dai

doi:10.1103/PhysRevLett.104.017204

Lattice distortion and magnetic quantum phase transition in CeFeAs1-xPxO

Clarina De La Cruz
, W. Z. Hu
, Shiliang Li
, Q. Huang
, J. W. Lynn
, M. A. Green
, G. F. Chen
, N. L. Wang
, H. A. Mook
, Qimiao Si
, Pengcheng Dai

Powder Diffraction

Research output: Contribution to journal › Article › peer-review

66 Scopus citations

Abstract

We use neutron diffraction to study the structural and magnetic phase diagram of CeFeAs1-xPxO. We find that replacing the larger arsenic with smaller phosphorus in CeFeAs1-xPxO simultaneously suppresses the AFM order and orthorhombic distortion near x=0.4, thus suggesting the presence of a magnetic quantum critical point. Our detailed structural analysis reveals that the pnictogen height is an important controlling parameter for their electronic and magnetic properties, and may play an important role in electron pairing and superconductivity of these materials.

Original language	English
Article number	017204
Journal	Physical Review Letters
Volume	104
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.104.017204
State	Published - Jan 8 2010

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10.1103/PhysRevLett.104.017204

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title = "Lattice distortion and magnetic quantum phase transition in CeFeAs1-xPxO",

abstract = "We use neutron diffraction to study the structural and magnetic phase diagram of CeFeAs1-xPxO. We find that replacing the larger arsenic with smaller phosphorus in CeFeAs1-xPxO simultaneously suppresses the AFM order and orthorhombic distortion near x=0.4, thus suggesting the presence of a magnetic quantum critical point. Our detailed structural analysis reveals that the pnictogen height is an important controlling parameter for their electronic and magnetic properties, and may play an important role in electron pairing and superconductivity of these materials.",

author = "\{De La Cruz\}, Clarina and Hu, \{W. Z.\} and Shiliang Li and Q. Huang and Lynn, \{J. W.\} and Green, \{M. A.\} and Chen, \{G. F.\} and Wang, \{N. L.\} and Mook, \{H. A.\} and Qimiao Si and Pengcheng Dai",

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doi = "10.1103/PhysRevLett.104.017204",

language = "English",

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T1 - Lattice distortion and magnetic quantum phase transition in CeFeAs1-xPxO

AU - De La Cruz, Clarina

AU - Hu, W. Z.

AU - Li, Shiliang

AU - Huang, Q.

AU - Lynn, J. W.

AU - Green, M. A.

AU - Chen, G. F.

AU - Wang, N. L.

AU - Mook, H. A.

AU - Si, Qimiao

AU - Dai, Pengcheng

PY - 2010/1/8

Y1 - 2010/1/8

N2 - We use neutron diffraction to study the structural and magnetic phase diagram of CeFeAs1-xPxO. We find that replacing the larger arsenic with smaller phosphorus in CeFeAs1-xPxO simultaneously suppresses the AFM order and orthorhombic distortion near x=0.4, thus suggesting the presence of a magnetic quantum critical point. Our detailed structural analysis reveals that the pnictogen height is an important controlling parameter for their electronic and magnetic properties, and may play an important role in electron pairing and superconductivity of these materials.

AB - We use neutron diffraction to study the structural and magnetic phase diagram of CeFeAs1-xPxO. We find that replacing the larger arsenic with smaller phosphorus in CeFeAs1-xPxO simultaneously suppresses the AFM order and orthorhombic distortion near x=0.4, thus suggesting the presence of a magnetic quantum critical point. Our detailed structural analysis reveals that the pnictogen height is an important controlling parameter for their electronic and magnetic properties, and may play an important role in electron pairing and superconductivity of these materials.

UR - https://www.scopus.com/pages/publications/74949123507

U2 - 10.1103/PhysRevLett.104.017204

DO - 10.1103/PhysRevLett.104.017204

M3 - Article

AN - SCOPUS:74949123507

SN - 0031-9007

VL - 104

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

M1 - 017204

ER -

Lattice distortion and magnetic quantum phase transition in CeFeAs1-xPxO

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