Ba 1-xNa xTi 2Sb 2O (0.0 ≤ x ≤ 0.33): A layered titanium-based pnictide oxide superconductor

Phuong Doan; Melissa Gooch; Zhongjia Tang; Bernd Lorenz; Angela Möller; Joshua Tapp; Paul C.W. Chu; Arnold M. Guloy

doi:10.1021/ja3078889

Ba _1-xNa _xTi ₂Sb ₂O (0.0 ≤ x ≤ 0.33): A layered titanium-based pnictide oxide superconductor

Phuong Doan, Melissa Gooch, Zhongjia Tang, Bernd Lorenz, Angela Möller, Joshua Tapp, Paul C.W. Chu, Arnold M. Guloy

Executive Vice President

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

91 Citations (Scopus)

Abstract

A new layered Ti-based pnictide oxide superconductor, Ba _1-xNa _xTi ₂Sb ₂O (0.0 ≥ x ≥ 0.33), is reported. X-ray studies revealed that it crystallizes in the tetragonal CeCr ₂Si ₂C structure. The undoped parent compound, BaTi ₂Sb ₂O [P4/mmm; a = 4.1196(1) Å; c = 8.0951(2) Å], exhibits a charge density wave (CDW)/spin density wave (SDW) transition at 54 K. Upon chemical doping with Na, the CDW/SDW transition is systematically suppressed, and superconductivity arises with the critical temperature (T _c) increasing to 5.5 K. Bulk superconductivity was confirmed by resistivity, magnetic, and heat capacity measurements. Like the high-T _c cuprates and the iron pnictides, the superconductivity in BaTi ₂Sb ₂O arises from an ordered state. Similarities and differences between BaTi ₂Sb ₂O and the cuprate and iron pnictide superconductors are discussed.

Original language	English
Pages (from-to)	16520-16523
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	134
Issue number	40
DOIs	https://doi.org/10.1021/ja3078889
Publication status	Published - 2012 Oct 10

All Science Journal Classification (ASJC) codes

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

Access to Document

10.1021/ja3078889

Cite this

@article{19465269eb5b402ea80d6db35af68531,

title = "Ba 1-xNa xTi 2Sb 2O (0.0 ≤ x ≤ 0.33): A layered titanium-based pnictide oxide superconductor",

abstract = "A new layered Ti-based pnictide oxide superconductor, Ba 1-xNa xTi 2Sb 2O (0.0 ≥ x ≥ 0.33), is reported. X-ray studies revealed that it crystallizes in the tetragonal CeCr 2Si 2C structure. The undoped parent compound, BaTi 2Sb 2O [P4/mmm; a = 4.1196(1) {\AA}; c = 8.0951(2) {\AA}], exhibits a charge density wave (CDW)/spin density wave (SDW) transition at 54 K. Upon chemical doping with Na, the CDW/SDW transition is systematically suppressed, and superconductivity arises with the critical temperature (T c) increasing to 5.5 K. Bulk superconductivity was confirmed by resistivity, magnetic, and heat capacity measurements. Like the high-T c cuprates and the iron pnictides, the superconductivity in BaTi 2Sb 2O arises from an ordered state. Similarities and differences between BaTi 2Sb 2O and the cuprate and iron pnictide superconductors are discussed.",

author = "Phuong Doan and Melissa Gooch and Zhongjia Tang and Bernd Lorenz and Angela M{\"o}ller and Joshua Tapp and Chu, {Paul C.W.} and Guloy, {Arnold M.}",

year = "2012",

month = oct,

day = "10",

doi = "10.1021/ja3078889",

language = "English",

volume = "134",

pages = "16520--16523",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "40",

}

TY - JOUR

T1 - Ba 1-xNa xTi 2Sb 2O (0.0 ≤ x ≤ 0.33)

T2 - A layered titanium-based pnictide oxide superconductor

AU - Doan, Phuong

AU - Gooch, Melissa

AU - Tang, Zhongjia

AU - Lorenz, Bernd

AU - Möller, Angela

AU - Tapp, Joshua

AU - Chu, Paul C.W.

AU - Guloy, Arnold M.

PY - 2012/10/10

Y1 - 2012/10/10

N2 - A new layered Ti-based pnictide oxide superconductor, Ba 1-xNa xTi 2Sb 2O (0.0 ≥ x ≥ 0.33), is reported. X-ray studies revealed that it crystallizes in the tetragonal CeCr 2Si 2C structure. The undoped parent compound, BaTi 2Sb 2O [P4/mmm; a = 4.1196(1) Å; c = 8.0951(2) Å], exhibits a charge density wave (CDW)/spin density wave (SDW) transition at 54 K. Upon chemical doping with Na, the CDW/SDW transition is systematically suppressed, and superconductivity arises with the critical temperature (T c) increasing to 5.5 K. Bulk superconductivity was confirmed by resistivity, magnetic, and heat capacity measurements. Like the high-T c cuprates and the iron pnictides, the superconductivity in BaTi 2Sb 2O arises from an ordered state. Similarities and differences between BaTi 2Sb 2O and the cuprate and iron pnictide superconductors are discussed.

AB - A new layered Ti-based pnictide oxide superconductor, Ba 1-xNa xTi 2Sb 2O (0.0 ≥ x ≥ 0.33), is reported. X-ray studies revealed that it crystallizes in the tetragonal CeCr 2Si 2C structure. The undoped parent compound, BaTi 2Sb 2O [P4/mmm; a = 4.1196(1) Å; c = 8.0951(2) Å], exhibits a charge density wave (CDW)/spin density wave (SDW) transition at 54 K. Upon chemical doping with Na, the CDW/SDW transition is systematically suppressed, and superconductivity arises with the critical temperature (T c) increasing to 5.5 K. Bulk superconductivity was confirmed by resistivity, magnetic, and heat capacity measurements. Like the high-T c cuprates and the iron pnictides, the superconductivity in BaTi 2Sb 2O arises from an ordered state. Similarities and differences between BaTi 2Sb 2O and the cuprate and iron pnictide superconductors are discussed.

UR - http://www.scopus.com/inward/record.url?scp=84867356324&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84867356324&partnerID=8YFLogxK

U2 - 10.1021/ja3078889

DO - 10.1021/ja3078889

M3 - Article

C2 - 22998020

AN - SCOPUS:84867356324

SN - 0002-7863

VL - 134

SP - 16520

EP - 16523

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 40

ER -

Ba _1-xNa _xTi ₂Sb ₂O (0.0 ≤ x ≤ 0.33): A layered titanium-based pnictide oxide superconductor

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this