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Displaying 1 - 25 of 98

Powder X-ray structural analysis and band gap measurements for (CaxSr2-x)MnWO6 (x = 0.25, 0.5, 0.75, 1.5, 1.75).

June 1, 2022
Author(s)
Winnie Wong-Ng, YuQi Yang, Yu-Cheng Lan, GuangYao Liu, Amrit Kafle, Weifang Liu, Jie Hou, Donald Windover, Qingzhen Huang, Sergiy Krylyuk, James A. Kaduk
The structure, powder diffraction patterns and band gap measurements of a series of manganese- and tungsten-containing alkaline-earth double perovskites (CaxSr2-x)MnWO6 (x=0.25, 0.5, 0.75, 1.5, 1.75) have been investigated. Powder X-ray diffraction

Metal-Insulator transition in Doped Barium Plumbate

September 16, 2021
Author(s)
Andreza M. Eufrasio, Ian L. Pegg, Nikolaus Deems, Biprodas Dutta, Winnie Wong-Ng, Qingzhen Huang
Solid solutions in the Ba(Pb1−xSrx)O3−z system were prepared by aliovalent substitution of Pb4+ by Sr2+ ions to investigate the effect of cation stoichiometry on thermal and electrical properties as x was varied between 0 and 0.4, in the temperature range

A Distinct Spin Structure and Giant Baromagnetic Effect in MnNiGe Compounds with Fe-Doping

May 3, 2021
Author(s)
Feiran Shen, Houbo Zhou, Fengxia Hu, Jian-Tao Wang, Hui Wu, Qingzhen Huang, Jiazheng Hao, Zibing Yu, Yihong Gao, Yuan Lin, Yangxin Wang, Cheng Zhang, Zhuo Yin, Jing Wang, Sihao Deng, Jie Chen, Lunhua He, Tianjiao Liang, Jirong Sun, Tongyun Zhao, Baogen Shen
Spin structure of a magnetic system results from the competition of various exchange couplings. Pressure driven spin structure evolution, through altering interatomic distance and hence electronic structure, produces baromagnetic effect(BME), which has

Superconductivity in Co-Layered LaCoSi

April 22, 2021
Author(s)
Zhengwen He, Rongjin Huang, Kaiyao Zhou, Ye Liu, Shibin Guo, Yuzhu Song, Zhongnan Guo, Shuxian Hu, Lunhua He, Qingzhen Huang, Laifeng Li, Jingyan Zhang, Shouguo Wang, Jiangang Guo, Xianran Xing, Jun Chen

Origin of Magnetovolume Effect in a Cobaltite

March 8, 2021
Author(s)
Ping Miao, Zhijian Tan, Sanghyun Lee, Yoshihisa Ishikawa, Shuki Torii, Masao Yonemura, Akihiro Koda, Kazuki Komatsu, Shinichi Machida, Asami Sano-Furukawa, Takanori Hattori, Xiaohuan Lin, Kuo Li, Takashi Mochiku, Ryosuke Kikuchi, Chizuru Kawashima, Hiroki Takahashi, Qingzhen Huang, Shinichi Itoh, Ryosuke Kadono, Yingxia Wang, Feng Pan, Kunihiko Yamauchi, Takashi Kamiyama

A Combinatory Ferroelectric Compound Bridging Simple ABO 3 and A-Site-Ordered Quadruple Perovskite

February 2, 2021
Author(s)
Jianfa Zhao, Jiacheng Gao, Wenmin Li, Yuting Qian, Xiao Wang, Xi Shen, Zhiwei Hu, Cheng Dong, Qingzhen Huang, Lipeng Cao, Zhi Li, Jun Zhang, Chongwen Ren, Lei Duan, Qingqing Liu, Richeng Yu, Yang Ren, Shih-Chang Weng, Hong-Ji Lin, Chien-Te Chen, Liu-Hao Tjeng, Youwen Long, Zheng Deng, Jinlong Zhu, Xiancheng Wang, Hongming Weng, Runze Yu, Martha Greenblatt, Changqing Jin

Effect of H 2 O Molecules on Thermal Expansion of TiCo(CN) 6

October 19, 2020
Author(s)
Qilong Gao, Xinwei Shi, Alessandro Venier, Qingzhen Huang, Hui Wu, Jun Chen, Andrea Sanson, Erjun Liang
The understanding of the role of guest molecules in the lattice void of open-framework structures is vital for thermal expansion tailoring. Here, we take a new NTE compound, TiCo(CN) 6 as a case study from the local structure perspective to investigate the

Crystal Chemistry and Phase Equilibria of the CaO- 1/2Ho2O3-CoOz System at 885 degC in Air

July 2, 2020
Author(s)
Winnie K. Wong-Ng, William J. Laws, Qingzhen Huang, Jie Hou, James A. Kaduk, Saul H. Lapidus, Lynn Ribaud
The phase diagram of the CaO-½Ho2O3-CoOz system was determined at 885 ºC in air. This diagram offers detailed compatibility relationships in the ternary oxide system that are essential for processing and for the understanding of thermoelectric properties

Structural, Magnetic, and Electronic Evolution of the Spin-Ladder System BaFe 2 S 3-x Se x with Isoelectronic Substitution

June 12, 2020
Author(s)
Jia Yu, Meng Wang, Benjamin A. Frandsen, Hualei Sun, Junjie Yin, Zengjia Liu, Shan Wu, Ming Yi, Zhijun Xu, Arani Acharya, Qingzhen Huang, Edith Bourret-Courchesne, Jeffrey W. Lynn, Robert J. Birgeneau
We report experimental studies of a series of BaFe 2S 3-xSe x (0less than or equal to}xless than or equal to}3) single crystals and powder specimens using x-ray diffraction, neutron diffraction, muon spin relaxation, and electrical transport measurements

Large Enhancement of Magnetocaloric and Barocaloric Effects by Hydrostatic Pressure in La(Fe 0.92 Co 0.08 ) 11.9 Si 1.1 with a NaZn 13 -Type Structure

March 10, 2020
Author(s)
Jiazheng Hao, Fengxia Hu, Jian-Tao Wang, Fei-Ran Shen, Zibing Yu, Houbo Zhou, Hui Wu, Qingzhen Huang, Kaiming Qiao, Jing Wang, Jun He, Lunhua He, Ji-Rong Sun, Baogen Shen
Solid state refrigeration based on caloric effect has been regarded as an attractive alternative to conventional gas compression technique. Boosting the caloric effect of a system to its optimum is a long-term pursuit. Here, we report enhanced

Cone-Spiral Magnetic Ordering Dominated Lattice Distortion and Giant Negative Thermal Expansion in Fe-Doped MnNiGe Compounds

March 1, 2020
Author(s)
Feiran Shen, Houbo Zhou, Fengxia Hu, Jian-Tao Wang, Sihao Deng, Baotian Wang, Hui Wu, Qingzhen Huang, Jing Wang, Jie Chen, Lunhua He, Jiazheng Hao, Zibing Yu, Feixiang Liang, Tianjiao Liang, Jirong Sun, Baogen Shen
Negative thermal expansion (NTE) has emerged as one of intense research topics to meet the demands of precision industry for compensating positive thermal expansion (PTE) properties. The adjustment of NTE behavior is the key for tailoring thermal expansion

Superconductivity in a Unique Type of Copper Oxide

June 18, 2019
Author(s)
W. M. Li, J. F. Zhao, L. P. Cao, Z. Hu, Qingzhen Huang, X. C. Wang, Y. Liu, G. Q. Zhao, J. Zhang, Q. Q. Liu, R. Z. Yu, Y. W. Long, Hui Wu, H. J. Lin, C. T. Chen, Z. Li, Z. Z. Gong, Z. Guguchia, J. S. Kim, G. R. Stewart, Y. J. Uemura, S. Uchida, C. Q. Jin