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81. Evidence of a Spin Resonance Mode in the Iron-Based Superconductor Ba0.6K0.4Fe2As2 from Scanning Tunneling Spectroscopy
Lei Shan, Jing Gong, Yong-Lei Wang, Bing Shen, Xingyuan Hou, Cong Ren, Chunhong Li, Huan Yang, Hai-Hu Wen, Shiliang Li, and Pengcheng Dai
Phys. Rev. Lett. 108, 227002 (2012).  (Published on May 31st, 2012)  [pdf file]
82. Magnetic field dependence of spin-lattice relaxation in the s? state of Ba0.67K0.33Fe2As2
Sangwon Oh, A. M. Mounce, W. P. Halperin, C. L. Zhang, Pengcheng Dai, A. P. Reyes, and P. L. Kuhns
Phys. Rev. B 85,174508 (2012).   (Published on May 11th, 2012)  [pdf file]
83. Magnetic frustration and iron-vacancy ordering in iron chalcogenide
Chen Fang, Bao Xu, Pengcheng Dai, Tao Xiang, and Jiangping Hu
Phys. Rev. B 85, 134406 (2012)  (Published on Apr 2nd, 2012)  [pdf file]
84. Nature of magnetic excitations in superconducting BaFe1.9Ni0.1As2
Mengshu Liu, Leland W. Harriger, Huiqian Luo, Meng Wang, R. A. Ewings, T. Guidi, Hyowon Park, Kristjan Haule, Gabriel Kotliar, S. M. Hayden & Pengcheng Dai
Nature Physics 8, 376 (2012).  (Published on Mar 25th, 2012)  [pdf file]
85. Temperature dependence of the resonance and low-energy spin excitations in superconducting FeTe0.6Se0.4
Leland W. Harriger, O. J. Lipscombe, Chenglin Zhang, Huiqian Luo, Meng Wang, Karol Marty, M. D. Lumsden, and Pengcheng Dai
Phys. Rev. B 85, 054511 (2012).  (Published on Feb 24th, 2012)  [pdf file]
86. Evolution of normal and superconducting properties of single crystals of Na1-δFeAs upon interaction with environment
M. A. Tanatar, N. Spyrison, Kyuil Cho, E. C. Blomberg, Guotai Tan, Pengcheng Dai, Chenglin Zhang, and R. Prozorov
Phys. Rev. B 85, 014510 (2012).  (Published on Jan 18th, 2012)  [pdf file]
87. Superconductivity and spin fluctuations
Shiliang Li and Pengcheng Dai
Front. Phys. 6, 429-439 (2011).  (Published on Dec 23rd, 2011)  [pdf file]
88. Spin waves and magnetic exchange interactions in insulating Rb0.89Fe1.58Se2
Miaoyin Wang, Chen Fang, Dao-Xin Yao, GuoTai Tan, Leland W. Harriger, Yu Song, Tucker Netherton, Chenglin Zhang, Meng Wang, Matthew B. Stone, Wei Tian, Jiangping Hu & Pengcheng Dai
Nature Communications 2, 580 (2011).   (Published on Dec 6th, 2011)  [pdf file]
89. Common origin of the two types of magnetic fluctuations in iron chalcogenides
Songxue Chi, J. A. Rodriguez-Rivera, J. W. Lynn, Chenglin Zhang, D. Phelan, D. K. Singh, R. Paul, and Pengcheng Dai
Phys. Rev. B 84, 214407 (2011).  (Published on Dec 5th, 2011)  [pdf file]
90. Neutron Scattering Studies of spin excitations in hole-doped Ba0.67K0.33Fe2As2 superconductor
Chenglin Zhang, Meng Wang, Huiqian Luo, Miaoyin Wang, Mengshu Liu, Jun Zhao, D. L. Abernathy, T. A. Maier, Karol Marty, M. D. Lumsden, Songxue Chi, Sung Chang, Jose A. Rodriguez-Rivera, J. W. Lynn, Tao Xiang, Jiangping Hu, & Pengcheng Dai
Scientific Report 1, 115 (2011).  (Published on Oct 19th, 2011)  [pdf file]

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