Superconductivity in 4d and 5d transition metal layered pnictides BaRh 2P2, BaIr2P2 and SrIr 2As2

D. Hirai, T. Takayama, D. Hashizume, R. Higashinaka, Ayako Yamamoto, A. K. Hiroko, H. Takagi

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Bulk superconductivity was discovered in BaRh2P2 (Tc=1.0K), BaIr2P2 (Tc=2.1K) and SrIr2As 2 (Tc=2.9K), which are isostructural to (Ba,K)Fe2As 2, indicative of the appearance of superconductivity over a wide variety of layered transition metal pnictides. The electronic specific heat coefficient in the normal state, 9.75, 6.86 and 7.03 mJ/(mol K2) for BaRh2P2, BaIr2P2 and SrIr 2As2 respectively, indicate that the electronic density of states of these three compounds are moderately large but smaller than those of Fe pnictide superconductors.

Original languageEnglish
JournalPhysica C: Superconductivity and its Applications
Volume470
Issue numberSUPPL.1
DOIs
Publication statusPublished - 2010 Dec
Externally publishedYes

Fingerprint

Group 5A compounds
Superconductivity
Transition metals
superconductivity
transition metals
Electronic density of states
electronics
Superconducting materials
Specific heat
specific heat
coefficients

Keywords

  • BaIrP
  • BaRhP
  • SrIr As
  • Superconductivity
  • ThCrSi-type

ASJC Scopus subject areas

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

Cite this

Superconductivity in 4d and 5d transition metal layered pnictides BaRh 2P2, BaIr2P2 and SrIr 2As2 . / Hirai, D.; Takayama, T.; Hashizume, D.; Higashinaka, R.; Yamamoto, Ayako; Hiroko, A. K.; Takagi, H.

In: Physica C: Superconductivity and its Applications, Vol. 470, No. SUPPL.1, 12.2010.

Research output: Contribution to journalArticle

Hirai, D. ; Takayama, T. ; Hashizume, D. ; Higashinaka, R. ; Yamamoto, Ayako ; Hiroko, A. K. ; Takagi, H. / Superconductivity in 4d and 5d transition metal layered pnictides BaRh 2P2, BaIr2P2 and SrIr 2As2 In: Physica C: Superconductivity and its Applications. 2010 ; Vol. 470, No. SUPPL.1.
@article{7274127da91d4df2b43dac54cf70c35c,
title = "Superconductivity in 4d and 5d transition metal layered pnictides BaRh 2P2, BaIr2P2 and SrIr 2As2",
abstract = "Bulk superconductivity was discovered in BaRh2P2 (Tc=1.0K), BaIr2P2 (Tc=2.1K) and SrIr2As 2 (Tc=2.9K), which are isostructural to (Ba,K)Fe2As 2, indicative of the appearance of superconductivity over a wide variety of layered transition metal pnictides. The electronic specific heat coefficient in the normal state, 9.75, 6.86 and 7.03 mJ/(mol K2) for BaRh2P2, BaIr2P2 and SrIr 2As2 respectively, indicate that the electronic density of states of these three compounds are moderately large but smaller than those of Fe pnictide superconductors.",
keywords = "BaIrP, BaRhP, SrIr As, Superconductivity, ThCrSi-type",
author = "D. Hirai and T. Takayama and D. Hashizume and R. Higashinaka and Ayako Yamamoto and Hiroko, {A. K.} and H. Takagi",
year = "2010",
month = "12",
doi = "10.1016/j.physc.2009.11.059",
language = "English",
volume = "470",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "SUPPL.1",

}

TY - JOUR

T1 - Superconductivity in 4d and 5d transition metal layered pnictides BaRh 2P2, BaIr2P2 and SrIr 2As2

AU - Hirai, D.

AU - Takayama, T.

AU - Hashizume, D.

AU - Higashinaka, R.

AU - Yamamoto, Ayako

AU - Hiroko, A. K.

AU - Takagi, H.

PY - 2010/12

Y1 - 2010/12

N2 - Bulk superconductivity was discovered in BaRh2P2 (Tc=1.0K), BaIr2P2 (Tc=2.1K) and SrIr2As 2 (Tc=2.9K), which are isostructural to (Ba,K)Fe2As 2, indicative of the appearance of superconductivity over a wide variety of layered transition metal pnictides. The electronic specific heat coefficient in the normal state, 9.75, 6.86 and 7.03 mJ/(mol K2) for BaRh2P2, BaIr2P2 and SrIr 2As2 respectively, indicate that the electronic density of states of these three compounds are moderately large but smaller than those of Fe pnictide superconductors.

AB - Bulk superconductivity was discovered in BaRh2P2 (Tc=1.0K), BaIr2P2 (Tc=2.1K) and SrIr2As 2 (Tc=2.9K), which are isostructural to (Ba,K)Fe2As 2, indicative of the appearance of superconductivity over a wide variety of layered transition metal pnictides. The electronic specific heat coefficient in the normal state, 9.75, 6.86 and 7.03 mJ/(mol K2) for BaRh2P2, BaIr2P2 and SrIr 2As2 respectively, indicate that the electronic density of states of these three compounds are moderately large but smaller than those of Fe pnictide superconductors.

KW - BaIrP

KW - BaRhP

KW - SrIr As

KW - Superconductivity

KW - ThCrSi-type

UR - http://www.scopus.com/inward/record.url?scp=78649690489&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649690489&partnerID=8YFLogxK

U2 - 10.1016/j.physc.2009.11.059

DO - 10.1016/j.physc.2009.11.059

M3 - Article

AN - SCOPUS:78649690489

VL - 470

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - SUPPL.1

ER -