Emergence of superconductivity near the structural phase boundary in Pt-doped IrTe2 single crystals

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16 Citations (Scopus)

Abstract

Single crystals of Ir1-xPtxTe2 were synthesized and characterized. The low-temperature monoclinic phase of IrTe2 is suppressed and disappears with slight Pt doping. The breaking of the Ir-Ir bonds, a characteristic of the low-temperature monoclinic phase in pure IrTe2, is accompanied by the emergence of a superconducting phase. The Pt-content dependence of the structural phase-transition temperature and the superconducting transition temperature in single crystals adequately reproduced those in polycrystals. We also found a broad hysteresis of magnetization throughout a wide range of temperatures in pure IrTe2.

Original languageEnglish
Pages (from-to)80-84
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume494
DOIs
Publication statusPublished - 2013

Fingerprint

Phase boundaries
Superconductivity
doped crystals
superconductivity
transition temperature
Single crystals
Superconducting transition temperature
single crystals
polycrystals
hysteresis
Polycrystals
Temperature
magnetization
Hysteresis
Magnetization
Phase transitions
Doping (additives)
temperature

Keywords

  • IrTe
  • Pt doping
  • Single crystal
  • Structural phase transition
  • Superconductivity

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Electronic, Optical and Magnetic Materials

Cite this

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title = "Emergence of superconductivity near the structural phase boundary in Pt-doped IrTe2 single crystals",
abstract = "Single crystals of Ir1-xPtxTe2 were synthesized and characterized. The low-temperature monoclinic phase of IrTe2 is suppressed and disappears with slight Pt doping. The breaking of the Ir-Ir bonds, a characteristic of the low-temperature monoclinic phase in pure IrTe2, is accompanied by the emergence of a superconducting phase. The Pt-content dependence of the structural phase-transition temperature and the superconducting transition temperature in single crystals adequately reproduced those in polycrystals. We also found a broad hysteresis of magnetization throughout a wide range of temperatures in pure IrTe2.",
keywords = "IrTe, Pt doping, Single crystal, Structural phase transition, Superconductivity",
author = "Sunseng Pyon and Kazutaka Kudo and Minoru Nohara",
year = "2013",
doi = "10.1016/j.physc.2013.04.055",
language = "English",
volume = "494",
pages = "80--84",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",

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TY - JOUR

T1 - Emergence of superconductivity near the structural phase boundary in Pt-doped IrTe2 single crystals

AU - Pyon, Sunseng

AU - Kudo, Kazutaka

AU - Nohara, Minoru

PY - 2013

Y1 - 2013

N2 - Single crystals of Ir1-xPtxTe2 were synthesized and characterized. The low-temperature monoclinic phase of IrTe2 is suppressed and disappears with slight Pt doping. The breaking of the Ir-Ir bonds, a characteristic of the low-temperature monoclinic phase in pure IrTe2, is accompanied by the emergence of a superconducting phase. The Pt-content dependence of the structural phase-transition temperature and the superconducting transition temperature in single crystals adequately reproduced those in polycrystals. We also found a broad hysteresis of magnetization throughout a wide range of temperatures in pure IrTe2.

AB - Single crystals of Ir1-xPtxTe2 were synthesized and characterized. The low-temperature monoclinic phase of IrTe2 is suppressed and disappears with slight Pt doping. The breaking of the Ir-Ir bonds, a characteristic of the low-temperature monoclinic phase in pure IrTe2, is accompanied by the emergence of a superconducting phase. The Pt-content dependence of the structural phase-transition temperature and the superconducting transition temperature in single crystals adequately reproduced those in polycrystals. We also found a broad hysteresis of magnetization throughout a wide range of temperatures in pure IrTe2.

KW - IrTe

KW - Pt doping

KW - Single crystal

KW - Structural phase transition

KW - Superconductivity

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U2 - 10.1016/j.physc.2013.04.055

DO - 10.1016/j.physc.2013.04.055

M3 - Article

VL - 494

SP - 80

EP - 84

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

ER -