Nematicity in the superconducting mixed state of strain detwinned underdoped Ba(Fe<sub>1-x</sub>Co<sub>x</sub>)<sub>2</sub>As<sub>2</sub>

Evidence of nematic effects in the mixed superconducting phase of slightly underdoped Ba(Fe<sub>1-x</sub>Co<sub>x</sub>)<sub>2</sub>As<sub>2</sub> is reported. We have found strong in-plane resistivity anisotropy for crystals in different strain condit...

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Autores principales: Schmidt, J., Bekeris, Victoria, Lozano, Gustavo S., Bortulé, M. V., Marziali Bermúdez, Mariano, Hicks, Clifford W., Canfield, Paul C, Fradkin, Eduardo, Pasquini, G
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2019
Materias:
Ciencias Exactas
Física
Nematic effects
Anisotropy
Superconducting
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/124324
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-124324
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Nematic effects
Anisotropy
Superconducting
spellingShingle Ciencias Exactas
Física
Nematic effects
Anisotropy
Superconducting
Schmidt, J.
Bekeris, Victoria
Lozano, Gustavo S.
Bortulé, M. V.
Marziali Bermúdez, Mariano
Hicks, Clifford W.
Canfield, Paul C
Fradkin, Eduardo
Pasquini, G
Nematicity in the superconducting mixed state of strain detwinned underdoped Ba(Fe<sub>1-x</sub>Co<sub>x</sub>)<sub>2</sub>As<sub>2</sub>
topic_facet Ciencias Exactas
Física
Nematic effects
Anisotropy
Superconducting
description Evidence of nematic effects in the mixed superconducting phase of slightly underdoped Ba(Fe<sub>1-x</sub>Co<sub>x</sub>)<sub>2</sub>As<sub>2</sub> is reported. We have found strong in-plane resistivity anisotropy for crystals in different strain conditions. For these compositions, there is no magnetic long-range order, so the description may be ascribed to the interplay between the superconducting and nematic order parameters. A piezoelectric-based apparatus is used to apply tensile or compressive strain to tune nematic domain orientation in order to examine intrinsic nematicity. Measurements are done under a rotating magnetic field, and the analysis of the angular dependence of physical quantities identifies the cases in which the sample is detwinned. Furthermore, the angular dependence of the data allows us to evaluate the effects of nematicity on the in-plane superconductor stiffness. Our results show that although nematicity contributes in a decisive way to the conduction properties, its contributions to the anisotropy properties of the stiffness of the superconducting order parameter is not as significant in these samples.
format Articulo
Preprint
author Schmidt, J.
Bekeris, Victoria
Lozano, Gustavo S.
Bortulé, M. V.
Marziali Bermúdez, Mariano
Hicks, Clifford W.
Canfield, Paul C
Fradkin, Eduardo
Pasquini, G
author_facet Schmidt, J.
Bekeris, Victoria
Lozano, Gustavo S.
Bortulé, M. V.
Marziali Bermúdez, Mariano
Hicks, Clifford W.
Canfield, Paul C
Fradkin, Eduardo
Pasquini, G
author_sort Schmidt, J.
title Nematicity in the superconducting mixed state of strain detwinned underdoped Ba(Fe<sub>1-x</sub>Co<sub>x</sub>)<sub>2</sub>As<sub>2</sub>
title_short Nematicity in the superconducting mixed state of strain detwinned underdoped Ba(Fe<sub>1-x</sub>Co<sub>x</sub>)<sub>2</sub>As<sub>2</sub>
title_full Nematicity in the superconducting mixed state of strain detwinned underdoped Ba(Fe<sub>1-x</sub>Co<sub>x</sub>)<sub>2</sub>As<sub>2</sub>
title_fullStr Nematicity in the superconducting mixed state of strain detwinned underdoped Ba(Fe<sub>1-x</sub>Co<sub>x</sub>)<sub>2</sub>As<sub>2</sub>
title_full_unstemmed Nematicity in the superconducting mixed state of strain detwinned underdoped Ba(Fe<sub>1-x</sub>Co<sub>x</sub>)<sub>2</sub>As<sub>2</sub>
title_sort nematicity in the superconducting mixed state of strain detwinned underdoped ba(fe<sub>1-x</sub>co<sub>x</sub>)<sub>2</sub>as<sub>2</sub>
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/124324
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