Charge density wave with anomalous temperature dependence in UPt2Si2

Jooseop Lee; Karel Prokeš; Sohee Park; Igor Zaliznyak; Sachith Dissanayake; Masaaki Matsuda; Matthias Frontzek; Stanislav Stoupin; Greta L. Chappell; Ryan E. Baumbach; Changwon Park; John A. Mydosh; Garrett E. Granroth; Jacob P.C. Ruff

doi:10.1103/PhysRevB.102.041112

Charge density wave with anomalous temperature dependence in UPt2Si2

Jooseop Lee, Karel Prokeš, Sohee Park, Igor Zaliznyak, Sachith Dissanayake, Masaaki Matsuda, Matthias Frontzek, Stanislav Stoupin, Greta L. Chappell, Ryan E. Baumbach, Changwon Park, John A. Mydosh, Garrett E. Granroth, Jacob P.C. Ruff

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

13 Scopus citations

Abstract

Using single-crystal neutron and X-ray diffraction, we discovered a charge density wave (CDW) below 320 K, which accounts for the long-sought origin of the heat capacity and resistivity anomalies in UPt2Si2. The modulation wave vector, Qmod, is intriguingly similar to the incommensurate wave vector of URu2Si2. Qmod shows an unusual temperature dependence, shifting from commensurate to incommensurate position upon cooling and becoming locked at aproximately (0.42 0 0) near 180 K. Bulk measurements indicate a crossover toward a correlated coherent state around the same temperature, suggesting an interplay between the CDW and Kondo-lattice-like coherence before coexisting antiferromagnetic order sets in at TN=35 K.

Original language	English
Article number	041112
Journal	Physical Review B
Volume	102
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.102.041112
State	Published - 15 Jul 2020

Bibliographical note

Publisher Copyright:
© 2020 American Physical Society.

Access to Document

10.1103/PhysRevB.102.041112

Cite this

@article{3f69bc74d0c348a8a33d781f6050527e,

title = "Charge density wave with anomalous temperature dependence in UPt2Si2",

abstract = "Using single-crystal neutron and X-ray diffraction, we discovered a charge density wave (CDW) below 320 K, which accounts for the long-sought origin of the heat capacity and resistivity anomalies in UPt2Si2. The modulation wave vector, Qmod, is intriguingly similar to the incommensurate wave vector of URu2Si2. Qmod shows an unusual temperature dependence, shifting from commensurate to incommensurate position upon cooling and becoming locked at aproximately (0.42 0 0) near 180 K. Bulk measurements indicate a crossover toward a correlated coherent state around the same temperature, suggesting an interplay between the CDW and Kondo-lattice-like coherence before coexisting antiferromagnetic order sets in at TN=35 K.",

author = "Jooseop Lee and Karel Proke{\v s} and Sohee Park and Igor Zaliznyak and Sachith Dissanayake and Masaaki Matsuda and Matthias Frontzek and Stanislav Stoupin and Chappell, \{Greta L.\} and Baumbach, \{Ryan E.\} and Changwon Park and Mydosh, \{John A.\} and Granroth, \{Garrett E.\} and Ruff, \{Jacob P.C.\}",

note = "Publisher Copyright: {\textcopyright} 2020 American Physical Society. ",

year = "2020",

month = jul,

day = "15",

doi = "10.1103/PhysRevB.102.041112",

language = "English",

volume = "102",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

number = "4",

}

TY - JOUR

T1 - Charge density wave with anomalous temperature dependence in UPt2Si2

AU - Lee, Jooseop

AU - Prokeš, Karel

AU - Park, Sohee

AU - Zaliznyak, Igor

AU - Dissanayake, Sachith

AU - Matsuda, Masaaki

AU - Frontzek, Matthias

AU - Stoupin, Stanislav

AU - Chappell, Greta L.

AU - Baumbach, Ryan E.

AU - Park, Changwon

AU - Mydosh, John A.

AU - Granroth, Garrett E.

AU - Ruff, Jacob P.C.

PY - 2020/7/15

Y1 - 2020/7/15

N2 - Using single-crystal neutron and X-ray diffraction, we discovered a charge density wave (CDW) below 320 K, which accounts for the long-sought origin of the heat capacity and resistivity anomalies in UPt2Si2. The modulation wave vector, Qmod, is intriguingly similar to the incommensurate wave vector of URu2Si2. Qmod shows an unusual temperature dependence, shifting from commensurate to incommensurate position upon cooling and becoming locked at aproximately (0.42 0 0) near 180 K. Bulk measurements indicate a crossover toward a correlated coherent state around the same temperature, suggesting an interplay between the CDW and Kondo-lattice-like coherence before coexisting antiferromagnetic order sets in at TN=35 K.

AB - Using single-crystal neutron and X-ray diffraction, we discovered a charge density wave (CDW) below 320 K, which accounts for the long-sought origin of the heat capacity and resistivity anomalies in UPt2Si2. The modulation wave vector, Qmod, is intriguingly similar to the incommensurate wave vector of URu2Si2. Qmod shows an unusual temperature dependence, shifting from commensurate to incommensurate position upon cooling and becoming locked at aproximately (0.42 0 0) near 180 K. Bulk measurements indicate a crossover toward a correlated coherent state around the same temperature, suggesting an interplay between the CDW and Kondo-lattice-like coherence before coexisting antiferromagnetic order sets in at TN=35 K.

UR - https://www.scopus.com/pages/publications/85088508909

U2 - 10.1103/PhysRevB.102.041112

DO - 10.1103/PhysRevB.102.041112

M3 - Article

AN - SCOPUS:85088508909

SN - 2469-9950

VL - 102

JO - Physical Review B

JF - Physical Review B

IS - 4

M1 - 041112

ER -

Charge density wave with anomalous temperature dependence in UPt2Si2

Abstract

Bibliographical note

Access to Document

Fingerprint

Cite this