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Title: Itinerant G-type antiferromagnetic order in SrCr 2 As 2

Journal Article · · Physical Review B

Here, neutron-diffraction and magnetic susceptibility studies of polycrystalline SrCr2As2 reveal that this compound is an itinerant G-type antiferromagnet below the Néel temperature TN = 590(5) K with the Cr magnetic moments aligned along the tetragonal c axis. The system remains tetragonal to the lowest measured temperature (~12 K). The lattice parameter ratio c/a and the magnetic moment saturate at about the same temperature below ~200 K, indicating a possible magnetoelastic coupling. The ordered moment μ = 1.9(1)μB/Cr, measured at T = 12 K, is significantly reduced compared to its localized value (4μB/Cr) due to the itinerant character brought about by hybridization between the Cr 3d and As 4p orbitals.

Research Organization:
Ames Lab. (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1374740
Report Number(s):
IS-J--9412
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 1 Vol. 96; ISSN 2469-9950; ISSN PRBMDO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (40)

Superconductivity in quasi-one-dimensional Cs2Cr3As3 with large interchain distance journal January 2015
Recent advances in magnetic structure determination by neutron powder diffraction journal October 1993
Spin fluctuations in iron pnictides and chalcogenides: From antiferromagnetism to superconductivity journal January 2016
Frustrated magnetic interactions, giant magneto–elastic coupling, and magnetic phonons in iron–pnictides journal May 2009
Iron-based superconductors: Current status of materials and pairing mechanism journal July 2015
High-temperature superconductivity in iron pnictides and chalcogenides journal March 2016
Superconductivity in the vicinity of antiferromagnetic order in CrAs journal November 2014
What drives nematic order in iron-based superconductors? journal January 2014
The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides journal October 2010
Relation between the specific heat and susceptibility of an antiferromagnet journal October 1962
Collinear antiferromagnetism in trigonal SrMn 2 As 2 revealed by single-crystal neutron diffraction journal November 2016
Antiferromagnetism in ( Ca 0.85 Sr 0.15 ) CuO 2 , the parent of the cuprate family of superconducting compounds journal May 1989
Lattice collapse and quenching of magnetism in CaFe 2 As 2 under pressure: A single-crystal neutron and x-ray diffraction investigation journal January 2009
Electronic structure and magnetism in BaMn 2 As 2 and BaMn 2 Sb 2 journal February 2009
Itinerant antiferromagnetism in BaCr 2 As 2 : Experimental characterization and electronic structure calculations journal March 2009
Magnetic, transport, and thermal properties of single crystals of the layered arsenide BaMn 2 As 2 journal March 2009
Magnetic and lattice coupling in single-crystal SrFe 2 As 2 : A neutron scattering study journal August 2009
Magnetic order in BaMn 2 As 2 from neutron diffraction measurements journal September 2009
Magnetic exchange interactions in BaMn 2 As 2 : A case study of the J 1 - J 2 - J c Heisenberg model journal September 2011
Optical properties of the iron-pnictide analog BaMn 2 As 2 journal July 2012
Crystal and magnetic structure of CaCo 1.86 As 2 studied by x-ray and neutron diffraction journal November 2013
Magnetic structure and spin excitations in BaMn 2 Bi 2 journal February 2014
Itinerant and local-moment magnetism in EuCr 2 As 2 single crystals journal April 2014
Unconventional superconductivity in quasi-one-dimensional Rb 2 Cr 3 As 3 journal January 2015
Pressure-induced collapsed-tetragonal phase in SrCo 2 As 2 journal December 2015
Magnetic structures of the Eu and Cr moments in EuCr 2 As 2 : Neutron diffraction study journal September 2016
Strong magnetic correlations to 900 K in single crystals of the trigonal antiferromagnetic insulators SrMn 2 As 2 and CaMn 2 As 2 journal September 2016
Angle-resolved photoemission observation of Mn-pnictide hybridization and negligible band structure renormalization in BaMn 2 As 2 and BaMn 2 Sb 2 journal October 2016
Pressure-induced transition to the collapsed tetragonal phase in BaC r 2 A s 2 journal April 2017
Antiferromagnetic structure and electronic properties of BaCr 2 As 2 and BaCrFeAs 2 journal May 2017
Is BaCr 2 As 2 symmetrical to BaFe 2 As 2 with respect to half 3 d shell filling? journal May 2017
Anisotropy, Itineracy, and Magnetic Frustration in High- T C Iron Pnictides journal March 2009
Superconductivity in Quasi-One-Dimensional K 2 Cr 3 As 3 with Significant Electron Correlations journal February 2015
Superconductivity in iron compounds journal December 2011
A common thread: The pairing interaction for unconventional superconductors journal October 2012
Colloquium : The unexpected properties of alkali metal iron selenide superconductors journal May 2013
Antiferromagnetic order and spin dynamics in iron-based superconductors journal August 2015
Zur Struktur ternärer Übergangsmetallarsenide/On the Structure of Ternary Arsenides journal June 1980
Bindungsverhältnisse und magnetische Eigenschaften ternärer Arsenide ET2As2 / Bonding and Magnetic Properties in Ternary Arsenides ET2As2 journal July 1983
Superconductivity of 2.2 K under Pressure in Helimagnet CrAs journal September 2014

Cited By (4)

Intrinsic ferromagnetism with high temperature, strong anisotropy and controllable magnetization in the CrX (X = P, As) monolayer journal January 2020
Prediction of antiferromagnetism in barium chromium phosphide confirmed after synthesis journal October 2019
Magnetic hexadecapole order and magnetopiezoelectric metal state in Ba 1 − x K x Mn 2 As 2 journal August 2017
Group-theoretical classification of multipole order: Emergent responses and candidate materials journal December 2018

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