Effects of vanadium doping on BaFe2As2

Xing Guang Li; Jie Ming Sheng; Cong Kuan Tian; Yi Yan Wang; Tian Long Xia; Le Wang; Feng Ye; Wei Tian; Jin Chen Wang; Juan Juan Liu; Hong Xia Zhang; Wei Bao; Peng Cheng

doi:10.1209/0295-5075/122/67006

Effects of vanadium doping on BaFe₂As₂

Xing Guang Li, Jie Ming Sheng, Cong Kuan Tian, Yi Yan Wang, Tian Long Xia, Le Wang, Feng Ye, Wei Tian, Jin Chen Wang, Juan Juan Liu, Hong Xia Zhang, Wei Bao, Peng Cheng

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7 Scopus citations

Abstract

We report an investigation of the structural, magnetic and electronic properties of Ba(Fe_1-xV_x)₂As₂ using x-ray, transport, magnetic susceptibility and neutron scattering measurements. The vanadium substitutions in Fe sites are possible up to ∼40%. Hall effect measurements indicate strong hole-doping effect through V doping, while no superconductivity is observed in all samples down to 2 K. The antiferromagnetic and structural transition temperature of BaFe₂As₂ is gradually suppressed to finite temperature, then vanishes at with the emergence of spin glass behavior, suggesting an avoided quantum critical point (QCP). Our results demonstrate that the avoided QCP and spin glass state which were previously reported in the superconducting phase of Co/Ni-doped BaFe₂As₂ can also be realized in non-superconducting Ba(Fe_1-xV_x)₂As₂.

Original language	English
Article number	67006
Journal	EPL
Volume	122
Issue number	6
DOIs	https://doi.org/10.1209/0295-5075/122/67006
State	Published - Jun 2018

Funding

The work at RUC is supported by NSFC (No. 11204373 and No. 11227906).

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title = "Effects of vanadium doping on BaFe2As2 ",

abstract = "We report an investigation of the structural, magnetic and electronic properties of Ba(Fe1-xVx)2As2 using x-ray, transport, magnetic susceptibility and neutron scattering measurements. The vanadium substitutions in Fe sites are possible up to ∼40%. Hall effect measurements indicate strong hole-doping effect through V doping, while no superconductivity is observed in all samples down to 2 K. The antiferromagnetic and structural transition temperature of BaFe2As2 is gradually suppressed to finite temperature, then vanishes at with the emergence of spin glass behavior, suggesting an avoided quantum critical point (QCP). Our results demonstrate that the avoided QCP and spin glass state which were previously reported in the superconducting phase of Co/Ni-doped BaFe2As2 can also be realized in non-superconducting Ba(Fe1-xVx)2As2.",

author = "Li, {Xing Guang} and Sheng, {Jie Ming} and Tian, {Cong Kuan} and Wang, {Yi Yan} and Xia, {Tian Long} and Le Wang and Feng Ye and Wei Tian and Wang, {Jin Chen} and Liu, {Juan Juan} and Zhang, {Hong Xia} and Wei Bao and Peng Cheng",

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doi = "10.1209/0295-5075/122/67006",

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TY - JOUR

T1 - Effects of vanadium doping on BaFe2As2

AU - Li, Xing Guang

AU - Sheng, Jie Ming

AU - Tian, Cong Kuan

AU - Wang, Yi Yan

AU - Xia, Tian Long

AU - Wang, Le

AU - Ye, Feng

AU - Tian, Wei

AU - Wang, Jin Chen

AU - Liu, Juan Juan

AU - Zhang, Hong Xia

AU - Bao, Wei

AU - Cheng, Peng

PY - 2018/6

Y1 - 2018/6

N2 - We report an investigation of the structural, magnetic and electronic properties of Ba(Fe1-xVx)2As2 using x-ray, transport, magnetic susceptibility and neutron scattering measurements. The vanadium substitutions in Fe sites are possible up to ∼40%. Hall effect measurements indicate strong hole-doping effect through V doping, while no superconductivity is observed in all samples down to 2 K. The antiferromagnetic and structural transition temperature of BaFe2As2 is gradually suppressed to finite temperature, then vanishes at with the emergence of spin glass behavior, suggesting an avoided quantum critical point (QCP). Our results demonstrate that the avoided QCP and spin glass state which were previously reported in the superconducting phase of Co/Ni-doped BaFe2As2 can also be realized in non-superconducting Ba(Fe1-xVx)2As2.

AB - We report an investigation of the structural, magnetic and electronic properties of Ba(Fe1-xVx)2As2 using x-ray, transport, magnetic susceptibility and neutron scattering measurements. The vanadium substitutions in Fe sites are possible up to ∼40%. Hall effect measurements indicate strong hole-doping effect through V doping, while no superconductivity is observed in all samples down to 2 K. The antiferromagnetic and structural transition temperature of BaFe2As2 is gradually suppressed to finite temperature, then vanishes at with the emergence of spin glass behavior, suggesting an avoided quantum critical point (QCP). Our results demonstrate that the avoided QCP and spin glass state which were previously reported in the superconducting phase of Co/Ni-doped BaFe2As2 can also be realized in non-superconducting Ba(Fe1-xVx)2As2.

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SN - 0295-5075

VL - 122

JO - EPL

JF - EPL

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ER -

Effects of vanadium doping on BaFe₂As₂

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