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Crystal Structure and Properties of Layered Pnictides BaCuSi2Pn3 (Pn = P, As)

Journal Article · · Inorganic Chemistry
Two novel layered compounds BaCuSi2Pn3 (Pn = P, As) adopting new structure types are reported. As revealed by single-crystal X-ray diffraction, both compounds are composed of unique Cu–Si–Pn layers featuring CuPn3 and Si2Pn6 structural motifs found in other archetypal pnictide materials. The stacking of the isostructural Cu–Si–Pn layers is different for phosphide and arsenide compounds. Synthesis from elements aided by in situ synchrotron powder X-ray diffraction resulted in the obtainment of bulk powders with a minimized amount of admixtures. Experimentally measured physical properties of BaCuSi2As3 unexpectedly showed metal-like behavior at temperatures above 15 K, despite the fact that density functional theory calculations predict a small band gap of 0.4 eV. BaCuSi2As3 exhibits ultralow thermal conductivity, which can be explained by the combination of a layered crystal structure with alternating covalent and ionic bonding, which feature rattling of Cu atoms similar to that in tetrahedrites.
Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1777937
Alternate ID(s):
OSTI ID: 1778980
OSTI ID: 1781740
Report Number(s):
IS-J--10,461
Journal Information:
Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: 8 Vol. 60; ISSN 0020-1669
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (42)

Modulated Crystal Structure and Electronic Properties of Semiconductor Cu47Si91P144 journal October 2000
From Bonding Asymmetry to Anharmonic Rattling in Cu 12 Sb 4 S 13 Tetrahedrites: When Lone-Pair Electrons Are Not So Lonely journal May 2015
2D GeP: An Unexploited Low-Symmetry Semiconductor with Strong In-Plane Anisotropy journal February 2018
Mineralisator-Konzept für Polyphosphide: Cu 2 P 20 und Cu 5 InP 16 journal June 2008
Bulk and Surface Structure and High‐Temperature Thermoelectric Properties of Inverse Clathrate‐III in the Si‐P‐Te System journal September 2010
Lithium Ion Mobility in Lithium Phosphidosilicates: Crystal Structure, 7 Li, 29 Si, and 31 P MAS NMR Spectroscopy, and Impedance Spectroscopy of Li 8 SiP 4 and Li 2 SiP 2 journal October 2016
Chemical and Electrochemical Lithiation of van der Waals Tetrel‐Arsenides journal April 2019
New Noncentrosymmetric Tetrel Pnictides Composed of Square‐Planar Gold(I) with Peculiar Bonding journal March 2021
Advanced analysis of copper X-ray photoelectron spectra: Advanced analysis of copper X-ray photoelectron spectra journal May 2017
Preparation and crystal structure of the Copper Silicon Polyphosphide Cu4SiP8 journal January 1996
Tern�re Erdalkali-und Seltene Erd-Silicide und-Germanide mit AlB2-Struktur journal January 1969
ZrCuSiAs: A “filled” PbFCl type journal October 1974
On the superconductivity, carrier concentration and the ionic model of Sn4P3 and Sn4As3 journal June 1969
Metallic properties of Ba2Cu3P4 and BaCu2Pn2 (Pn=As, Sb) journal July 2012
GeAs and SiAs monolayers: Novel 2D semiconductors with suitable band structures journal January 2018
Is NiCo 2 S 4 Really a Semiconductor? journal September 2015
GeAs 2 : A IV–V Group Two-Dimensional Semiconductor with Ultralow Thermal Conductivity and High Thermoelectric Efficiency journal July 2017
Phosphide–Tetrahedrite Ag 6 Ge 10 P 12 : Thermoelectric Performance of a Long-Forgotten Silver-Cluster Compound journal August 2017
Superseding van der Waals with Electrostatic Interactions: Intercalation of Cs into the Interlayer Space of SiAs 2 journal March 2019
Fast and Efficient Preparation of Exfoliated 2H MoS 2 Nanosheets by Sonication-Assisted Lithium Intercalation and Infrared Laser-Induced 1T to 2H Phase Reversion journal August 2015
NaSn 2 As 2 : An Exfoliatable Layered van der Waals Zintl Phase journal October 2016
van der Waals Layered Materials: Opportunities and Challenges journal October 2016
SnAs with the NaCl-type Structure: Type-I Superconductivity and Single Valence State of Sn journal December 2014
Crystal Structures, Optoelectronic Properties, and Electronic Structures of Layered Oxychalcogenides M CuO Ch ( M = Bi, La; Ch = S, Se, Te): Effects of Electronic Configurations of M 3+ Ions journal January 2008
Binding energy of the "2p" electrons of silicon in various compounds journal November 1970
Distorted Phosphorus and Copper Square-Planar Layers in LaCu 1+ x P 2 and LaCu 4 P 3 : Synthesis, Crystal Structure, and Physical Properties journal October 2014
A New Thermoelectric Material: CsBi 4 Te 6 journal May 2004
Intricate Short-Range Ordering and Strongly Anisotropic Transport Properties of Li 1– x Sn 2+ x As 2 journal March 2015
Ba 2 Si 3 P 6 : 1D Nonlinear Optical Material with Thermal Barrier Chains journal July 2019
Progress, Challenges, and Opportunities in Two-Dimensional Materials Beyond Graphene journal March 2013
Stability and Exfoliation of Germanane: A Germanium Graphane Analogue journal March 2013
Phosphorene: An Unexplored 2D Semiconductor with a High Hole Mobility journal March 2014
The rise of graphene journal March 2007
Na1−xSn2P2 as a new member of van der Waals-type layered tin pnictide superconductors journal August 2018
Intercalation in two-dimensional transition metal chalcogenides journal January 2016
LiSi 3 As 6 and Li 2 SiAs 2 with flexible SiAs 2 polyanions: synthesis, structure, bonding, and ionic conductivity journal January 2020
Two-dimensional SiP: an unexplored direct band-gap semiconductor journal December 2016
Direct spectroscopic evidence for completely filled Cu 3 d shell in BaCu 2 As 2 and α − BaCu 2 Sb 2 journal June 2015
A versatile sample-environment cell for non-ambient X-ray scattering experiments journal July 2008
A short history of SHELX journal December 2007
Neue ternäre halbleitende Phosphide MgGeP 2 , CuSi 2 P 3 und CuGe 2 P 3 journal March 1961
GaAs(110) by XPS journal July 1993