Observation of two separate charge density wave transitions in Gd2Te5 via transmission electron microscopy and high-resolution X-ray diffraction

K. Y. Shin; N. Ru; I. R. Fisher; C. L. Condron; M. F. Toney; Y. Q. Wu; M. J. Kramer

doi:10.1016/j.jallcom.2009.09.154

Observation of two separate charge density wave transitions in Gd₂Te₅ via transmission electron microscopy and high-resolution X-ray diffraction

K. Y. Shin
, N. Ru
, I. R. Fisher
, C. L. Condron
, M. F. Toney
, Y. Q. Wu
, M. J. Kramer

Division of Research and Economic Development

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

6 Scopus citations

Abstract

Gd₂Te₅ is a layered material consisting of alternating single and double square planar Te sheets. At room temperature the material hosts a complex lattice modulation characterized by multiple in-plane wavevectors. Diffraction measurements performed via transmission electron microscopy and high-resolution X-ray scattering reveal two distinct transitions at T_c1 = 410(3) and T_c2 = 532(3) K, associated with an on-axis incommensurate lattice modulation and an off-axis commensurate lattice modulation respectively. Our results show that the two lattice modulations are separate in origin but that there is some coupling between them.

Original language	English
Pages (from-to)	332-335
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	489
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2009.09.154
State	Published - 21 Jan 2010

Keywords

Charge density wave
Intermetallics
Transmission electron microscopy
X-ray diffraction

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10.1016/j.jallcom.2009.09.154

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@article{9a3fd78d5f7042f882d1fe301ca3ef5e,

title = "Observation of two separate charge density wave transitions in Gd2Te5 via transmission electron microscopy and high-resolution X-ray diffraction",

abstract = "Gd2Te5 is a layered material consisting of alternating single and double square planar Te sheets. At room temperature the material hosts a complex lattice modulation characterized by multiple in-plane wavevectors. Diffraction measurements performed via transmission electron microscopy and high-resolution X-ray scattering reveal two distinct transitions at Tc1 = 410(3) and Tc2 = 532(3) K, associated with an on-axis incommensurate lattice modulation and an off-axis commensurate lattice modulation respectively. Our results show that the two lattice modulations are separate in origin but that there is some coupling between them.",

keywords = "Charge density wave, Intermetallics, Transmission electron microscopy, X-ray diffraction",

author = "Shin, \{K. Y.\} and N. Ru and Fisher, \{I. R.\} and Condron, \{C. L.\} and Toney, \{M. F.\} and Wu, \{Y. Q.\} and Kramer, \{M. J.\}",

year = "2010",

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doi = "10.1016/j.jallcom.2009.09.154",

language = "English",

volume = "489",

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TY - JOUR

T1 - Observation of two separate charge density wave transitions in Gd2Te5 via transmission electron microscopy and high-resolution X-ray diffraction

AU - Shin, K. Y.

AU - Ru, N.

AU - Fisher, I. R.

AU - Condron, C. L.

AU - Toney, M. F.

AU - Wu, Y. Q.

AU - Kramer, M. J.

PY - 2010/1/21

Y1 - 2010/1/21

N2 - Gd2Te5 is a layered material consisting of alternating single and double square planar Te sheets. At room temperature the material hosts a complex lattice modulation characterized by multiple in-plane wavevectors. Diffraction measurements performed via transmission electron microscopy and high-resolution X-ray scattering reveal two distinct transitions at Tc1 = 410(3) and Tc2 = 532(3) K, associated with an on-axis incommensurate lattice modulation and an off-axis commensurate lattice modulation respectively. Our results show that the two lattice modulations are separate in origin but that there is some coupling between them.

AB - Gd2Te5 is a layered material consisting of alternating single and double square planar Te sheets. At room temperature the material hosts a complex lattice modulation characterized by multiple in-plane wavevectors. Diffraction measurements performed via transmission electron microscopy and high-resolution X-ray scattering reveal two distinct transitions at Tc1 = 410(3) and Tc2 = 532(3) K, associated with an on-axis incommensurate lattice modulation and an off-axis commensurate lattice modulation respectively. Our results show that the two lattice modulations are separate in origin but that there is some coupling between them.

KW - Charge density wave

KW - Intermetallics

KW - Transmission electron microscopy

KW - X-ray diffraction

UR - https://www.scopus.com/pages/publications/70649084025

U2 - 10.1016/j.jallcom.2009.09.154

DO - 10.1016/j.jallcom.2009.09.154

M3 - Article

AN - SCOPUS:70649084025

SN - 0925-8388

VL - 489

SP - 332

EP - 335

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 2

ER -

Observation of two separate charge density wave transitions in Gd₂Te₅ via transmission electron microscopy and high-resolution X-ray diffraction

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Keywords

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