Skip to main content

Condensed Matter > Superconductivity

arXiv:1909.01710 (cond-mat)
[Submitted on 4 Sep 2019]

Title:Superconductivity of Electron-Doped NdOBiS2 by Substitution of Mixed-Valence Ce ions

Authors:Naoki Kase, Masaya Matsumoto, Katsuo Kondo, Jun Gouchi, Yoshiya Uwatoko, Toshiro Sakakibara, Nobuaki Miyakawa
View PDF HTML (experimental)
Abstract:Superconductivity is achieved in Nd1-xCexOBiS2 via electron doping using mixed-valence Ce ions. Single crystals with x = 0.2, 0.3, 0.4, and 0.5 are generated using a CsCl flux method. Plate-like single crystals with dimensions of 0.8 0.8 0.2 mm3 were obtained. The magnetic susceptibility chi(T) indicates large diamagnetism, and the electrical resistivity rho(T) indicates zero resistivity. The maximum value of Tc is observed at 4.7 K in Nd0.8Ce0.2OBiS2 from chi(T). From the rho(T) measurements taken in several magnetic fields, the upper critical field mu0Hc2(0) is estimated to be about 12 and 0.34 T for the ab- and c-planes, respectively. We redetermined mu0Hc2(0) of NdO0.7F0.3BiS2, as about 35 and 0.78 T for the ab- and c-planes, respectively. The anisotropic parameter is estimated to be about 35 for Nd0.7Ce0.3OBiS2 and 45 for NdO0.7F0.3BiS2. The mu0Hc2(0) of Nd0.7Ce0.3OBiS2 is approximately two times smaller than that of NdO0.7F0.3BiS2, although the difference of Gamma is approximately 10.
Comments: 5 pages, 4 figures
Subjects: Superconductivity (cond-mat.supr-con)
Cite as: arXiv:1909.01710 [cond-mat.supr-con]
  (or arXiv:1909.01710v1 [cond-mat.supr-con] for this version)
  https://doi.org/10.48550/arXiv.1909.01710
Journal reference: J. Phys. Soc. Jpn. 88, 103703 (2019)
Related DOI: https://doi.org/10.7566/JPSJ.88.103703

Submission history

From: Naoki Kase [view email]
[v1] Wed, 4 Sep 2019 11:53:22 UTC (258 KB)
Full-text links:

Access Paper:

view license

Current browse context:

cond-mat.supr-con
< prev   |   next >
new | recent | 2019-09
Change to browse by:
cond-mat

References & Citations

Bookmark

BibSonomy Reddit

Bibliographic and Citation Tools

Bibliographic Explorer (What is the Explorer?)
Connected Papers (What is Connected Papers?)
Litmaps (What is Litmaps?)
scite Smart Citations (What are Smart Citations?)

Code, Data and Media Associated with this Article

alphaXiv (What is alphaXiv?)
CatalyzeX Code Finder for Papers (What is CatalyzeX?)
DagsHub (What is DagsHub?)
Gotit.pub (What is GotitPub?)
Hugging Face (What is Huggingface?)
ScienceCast (What is ScienceCast?)

Demos

Replicate (What is Replicate?)
Hugging Face Spaces (What is Spaces?)
TXYZ.AI (What is TXYZ.AI?)

Recommenders and Search Tools

Influence Flower (What are Influence Flowers?)
CORE Recommender (What is CORE?)
IArxiv Recommender (What is IArxiv?)

arXivLabs: experimental projects with community collaborators

arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.

Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them.

Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.

Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)