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Title: Thermoelectric studies of Ir 1 - x Rh x Te 2 ( 0 x 0.3 )

Abstract

Here, we report thermoelectric properties of Ir 1–xRh xTe 2 (0 ≤ x ≤ 0.3) alloy series where superconductivity at low temperatures emerges as the high-temperature structural transition (T s) is suppressed. The isovalent ionic substitution of Rh into Ir has different effects on physical properties when compared to the anionic substitution of Se into Te, in which the structural transition is more stable with Se substitution. Rh substitution results in a slight reduction of lattice parameters and in an increase of number of carriers per unit cell. Weak-coupled BCS superconductivity in Ir 0.8Rh 0.2Te 2 that emerges at low temperature (T c zero = 2.45K) is most likely driven by electron-phonon coupling rather than dimer fluctuations mediated pairing.

Authors:
ORCiD logo [1];  [2];  [3];  [1];  [1];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States); Renmin Univ. of China, Beijing (People's Republic of China)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Maryland, College Park, MD (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1480974
Alternate Identifier(s):
OSTI ID: 1473994
Report Number(s):
BNL-209352-2018-JAAM
Journal ID: ISSN 2469-9950; PRBMDO
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 98; Journal Issue: 9; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Liu, Yu, Lei, Hechang, Wang, Kefeng, Abeykoon, Milinda, Warren, J. B., Bozin, Emil, and Petrovic, C. Thermoelectric studies of Ir1-xRhxTe2 ( 0≤x≤0.3 ). United States: N. p., 2018. Web. doi:10.1103/PhysRevB.98.094519.
Liu, Yu, Lei, Hechang, Wang, Kefeng, Abeykoon, Milinda, Warren, J. B., Bozin, Emil, & Petrovic, C. Thermoelectric studies of Ir1-xRhxTe2 ( 0≤x≤0.3 ). United States. doi:10.1103/PhysRevB.98.094519.
Liu, Yu, Lei, Hechang, Wang, Kefeng, Abeykoon, Milinda, Warren, J. B., Bozin, Emil, and Petrovic, C. Wed . "Thermoelectric studies of Ir1-xRhxTe2 ( 0≤x≤0.3 )". United States. doi:10.1103/PhysRevB.98.094519. https://www.osti.gov/servlets/purl/1480974.
@article{osti_1480974,
title = {Thermoelectric studies of Ir1-xRhxTe2 ( 0≤x≤0.3 )},
author = {Liu, Yu and Lei, Hechang and Wang, Kefeng and Abeykoon, Milinda and Warren, J. B. and Bozin, Emil and Petrovic, C.},
abstractNote = {Here, we report thermoelectric properties of Ir1–xRhxTe2 (0 ≤ x ≤ 0.3) alloy series where superconductivity at low temperatures emerges as the high-temperature structural transition (Ts) is suppressed. The isovalent ionic substitution of Rh into Ir has different effects on physical properties when compared to the anionic substitution of Se into Te, in which the structural transition is more stable with Se substitution. Rh substitution results in a slight reduction of lattice parameters and in an increase of number of carriers per unit cell. Weak-coupled BCS superconductivity in Ir0.8Rh0.2Te2 that emerges at low temperature (Tczero = 2.45K) is most likely driven by electron-phonon coupling rather than dimer fluctuations mediated pairing.},
doi = {10.1103/PhysRevB.98.094519},
journal = {Physical Review B},
number = 9,
volume = 98,
place = {United States},
year = {2018},
month = {9}
}

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