Iron Chalcogenide Superconductors

John M. Tranquada, Guangyong Xu, and Igor A. Zaliznyak.
Superconductivity, antiferromagnetism, and neutron scattering.
J. Magn. Magn. Mat. 350, 148–160 (2014).

Jinsheng Wen, Shichao Li, Zhijun Xu, Cheng Zhang, M. Matsuda, O. Sobolev, J. T. Park, A. D. Christianson, E. Bourret-Courchesne, Qiang Li, Genda Gu, Dung-Hai Lee, J. M. Tranquada, Guangyong Xu, and R. J. Birgeneau.
Enhanced low-energy magnetic excitations via suppression of the itinerancy in Fe0.98-zCuzTe0.5Se0.5.
Phys. Rev. B
88, 144509 (2013).

Zhijun Xu, Jinsheng Wen, Yang Zhao, Masaaki Matsuda, Wei Ku, Xuerong Liu, Genda Gu, D.-H. Lee, R. J. Birgeneau, J. M. Tranquada, and Guangyong Xu.
Temperature-Dependent Transformation of the Magnetic Excitation Spectrum on Approaching Superconductivity in Fe1+y-x(Ni/Cu)xTe0.5Se0.5.
Phys. Rev. Lett.
109, 227002 (2012).

I. A. Zaliznyak, Z. J. Xu, J. S. Wen, J. M. Tranquada, G. D. Gu, V. Solovyov, V. N. Glazkov, A. I. Zheludev, V. O. Garlea, and M. B. Stone.
Continuous magnetic and structural phase transitions in Fe1+yTe.
Phys. Rev. B
85, 085105 (2012).

Igor A. Zaliznyak, Zhijun Xu, John M. Tranquada, Genda Gu, Alexei M. Tsvelik, and Matthew B. Stone.
Unconventional Temperature Enhanced Magnetism in Fe1.1Te.
Phys. Rev. Lett.
107, 216403 (2011).

Jinsheng Wen, Zhijun Xu, Guangyong Xu, M. D. Lumsden, P. N. Valdivia, E. Bourret-Courchesne, Genda Gu, Dung-Hai Lee, J. M. Tranquada, and R. J. Birgeneau.
Magnetic order tuned by Cu substitution in Fe1.1-zCuzTe.
Phys. Rev. B 86, 024401 (2012).

Wei-Cheng Lee, Weicheng Lv, J. M. Tranquada, and Philip W. Phillips.
Impact of dynamic orbital correlations on magnetic excitations in the normal state of iron-based superconductors.
Phys. Rev. B
86, 094516 (2012).

Zhijun Xu, Jinsheng Wen, Guangyong Xu, Songxue Chi, Wei Ku, Genda Gu, and J. M. Tranquada.
Local-moment magnetism in superconducting FeTe0.35Se0.65 as seen via inelastic neutron scattering.
Phys. Rev. B 84, 052506 (2011).

Jinsheng Wen, Guangyong Xu, Genda Gu, J. M. Tranquada, and R. J. Birgeneau.
Interplay between magnetism and superconductivity in iron-chalcogenide superconductors: crystal growth and characterizations.
Rep. Prog. Phys. 74, 124503 (2011).

X. Liu, C.-C. Lee, Z. J. Xu, J. S. Wen, G. Gu, W. Ku, J. M. Tranquada, and J. P. Hill.
X-ray diffuse scattering study of local distortions in Fe1+xTe induced by excess Fe.
Phys. Rev. B 83, 184523 (2011).

Naoyuki Katayama, Sungdae Ji, Despina Louca, Seunghun Lee, Masaki Fujita, Taku J. Sato, Jinsheng Wen, Zhijun Xu, Genda Gu, Guangyong Xu, Ziwei Lin, Masanori Enoki, Sung Chang, Kazuyoshi Yamada, and John M. Tranquada.
Investigation of the Spin-Glass Regime between the Antiferromagnetic and Superconducting Phases in Fe1+ySexTe1-x.
J. Phys. Soc. Jpn.
79, 113702 (2010).

Zhijun Xu, Jinsheng Wen, Guangyong Xu, Qing Jie, Zhiwei Lin, Qiang Li, Songxue Chi, D. K. Singh, Genda Gu, and J. M. Tranquada.
Disappearance of static magnetic order and evolution of spin fluctuations in Fe1+δSexTe1-x.
Phys. Rev. B
82, 104525 (2010).

Jinsheng Wen, Guangyong Xu, Zhijun Xu, Zhi Wei Lin, Qiang Li, Ying Chen, Songxue Chi, Genda Gu, and J. M. Tranquada.
Effect of magnetic field on the spin resonance in FeTe0.5Se0.5 as seen via inelastic neutron scattering.
Phys. Rev. B 81, 100513(R) (2010).

S.-H. Lee, Guangyong Xu, W. Ku, J. S. Wen, C. C. Lee, N. Katayama, Z. J. Xu, S. Ji, Z. W. Lin, G. D. Gu, H.-B. Yang, P. D. Johnson, Z.-H. Pan, T. Valla, M. Fujita, T. J. Sato, S. Chang, K. Yamada, and J. M. Tranquada.
Coupling of spin and orbital excitations in the iron-based superconductor FeSe0.5Te0.5.
Phys. Rev. B
81, 220502(R) (2010).

Jinsheng Wen, Guangyong Xu, Zhijun Xu, Zhi Wei Lin, Qiang Li, W. Ratcliff, Genda Gu, and J. M. Tranquada.
Short-range incommensurate magnetic order near the superconducting phase boundary in Fe1+δTe1-xSex.
Phys. Rev. B
80, 104506 (2009).