Rice University

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19922026

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2013 · cond-mat.supr-conShow all

12 papers · 2 filters

cond-mat.supr-con2013

Double neutron spin resonances and gap anisotropy in underdoped superconducting NaFe0.985Co0.015As

Chenglin Zhang, Rong Yu, Yixi Su +8

We use inelastic neutron scattering to show that superconductivity in electron-underdoped NaFe0.985Co0.015As induces a dispersive sharp resonance near Er1 = 3:25 meV and a broad di…

cond-mat.supr-con2013★ 48 cited

Electron doping evolution of the magnetic excitations in BaFe2-xNixAs2

Huiqian Luo, Xingye Lu, Rui Zhang +7

We use inelastic neutron scattering (INS) spectroscopy to study the magnetic excitations spectra throughout the Brioullion zone in electron-doped iron pnictide superconductors BaFe…

cond-mat.supr-con2013★ 37 cited

In-plane spin excitation anisotropy in the paramagnetic phase of NaFeAs

Yu Song, Louis-Pierre Regnault, Chenglin Zhang +6

We use unpolarized and polarized inelastic neutron scattering to study low-energy spin excitations in NaFeAs, which exhibits a tetragonal-to-orthorhombic lattice distortion at $T_s…

cond-mat.supr-con2013★ 12 cited

Longitudinal spin excitations and magnetic anisotropy in antiferromagnetically ordered BaFe2As2

Chong Wang, Rui Zhang, Fa Wang +4

We report on a spin-polarized inelastic neutron scattering study of spin waves in the antiferromagnetically ordered state of BaFe2As2. Three distinct excitation components are iden…

cond-mat.supr-con2013★ 64 cited

Spin excitation anisotropy as a probe of orbital ordering in the paramagnetic tetragonal phase of superconducting BaFe1.904Ni0.096As2

Huiqian Luo, Meng Wang, Chenglin Zhang +5

We use polarized neutron scattering to demonstrate that in-plane spin excitations in electron doped superconducting BaFe1.904Ni0.096As2 (Tc=19.8 K) change from isotropic to anisotr…

cond-mat.supr-con2013★ 50 cited

Distinguishing $s^{\pm}$ and $s^{++}$ electron pairing symmetries by neutron spin resonance in superconducting NaFe $_{0.935}$ Co $_{0.045}$ As

Chenglin Zhang, H. -F. Li, Yu Song +17

A determination of the superconducting (SC) electron pairing symmetry forms the basis for establishing a microscopic mechansim for superconductivity. For iron pnictide superconduct…

cond-mat.supr-con2013★ 10 cited

Microscopic coexistence of a two-component incommensurate spin density wave with superconductivity in underdoped NaFe $_{0.983}$ Co $_{0.017}$ As

Sangwon Oh, A. M. Mounce, Jeongseop A. Lee +6

We have performed $^{75}$ As and $^{23}$ Na nuclear magnetic resonance (NMR) measurements on a single crystal of NaFe $_{0.9835}$ Co $_{0.0165}$ As and found microscopic coexistence of s…

cond-mat.supr-con2013★ 77 cited

Avoided quantum criticality and magnetoelastic coupling in BaFe $_{2 - x}$ Ni $_{x}$ As $_{2}$

Xingye Lu, H. Gretarsson, Rui Zhang +9

We study the structural and magnetic orders in electron-doped BaFe2-xNixAs2 by high-resolution synchrotron X-ray and neutron scatterings. Upon Ni-doping x, the nearly simultaneous…

cond-mat.supr-con2013★ 68 cited

Orbital-selective superconductivity, gap anisotropy and spin resonance excitations in a multiorbital t-J1-J2 model for iron pnictides

Rong Yu, Jian-Xin Zhu, Qimiao Si

We study the orbital-dependent superconducting pairing in a five-orbital t-J1-J2 model for iron pnictides. Depending on the orbital selectivity of electron correlations and the orb…

cond-mat.supr-con2013★ 23 cited

Orbital-dependent effects of electron correlations in microscopic models for iron-based superconductors

Rong Yu, Jian-Xin Zhu, Qimiao Si

The bad metal behavior in the normal state of the iron-based superconductors suggests an intimate connection between the superconductivity and a proximity to a Mott transition. At…

cond-mat.supr-con2013★ 22 cited

Simultaneous optimization of spin fluctuations and superconductivity under pressure in an iron-based superconductor

G. F. Ji, J. S. Zhang, Long Ma +9

We present a high-pressure NMR study of the overdoped iron pnictide superconductor NaFe $_{0.94}$ Co $_{0.06}$ As. The low-energy antiferromagnetic spin fluctuations in the normal stat…

cond-mat.supr-con2013★ 124 cited

A magnetic origin for high temperature superconductivity in iron pnictides

Meng Wang, Chenglin Zhang, Xingye Lu +12

In conventional Bardeen-Cooper-Schrieffer (BCS) superconductors, superconductivity occurs when electrons form coherent Cooper pairs below the superconducting transition temperature…