Reliable Electronic and Magnetic Structure for BaFe$_2$As$_2$ using the PAW method (2009)
Cao, Chao, Wu, Yu-ning, Hamdan, Rashid, Cheng, Hai-Ping
By carefully choosing parameters and including more semi-core orbitals as valence electrons, we constructed a high quality projected augmented wave (PAW) dataset that yields results comparable to...
Graser, S., Boyd, G. R., Cao, Chao, Cheng, Hai-Ping, Hirschfeld, P. J., Scalapino, D. J.
Since the discovery of high-Tc LaO_1-xF_xFeAs, and other such systems based on FeAs layers, several proposals have been made for the superconducting order parameter Delta_k, on both phenomenological...
Cao, Chao, Hill, Stephen, Cheng, Hai-Ping
The single-molecule magnet $\mathrm{[Ni(hmp)(MeOH)Cl]_4}$ is studied using both density functional theory (DFT) and the DFT+U method, and the results are compared. By incorporating a Hubbard-U like...
Cao, Chao, Hirschfeld, P. J., Cheng, Hai-Ping
We report density functional theory calculations for the parent compound LaOFeAs of the newly discovered 26K Fe-based superconductor LaO$_{1-x}$F$_x$FeAs. We find that the ground state is an ordered...
Multiscale Modeling of Materials - Concepts and Illustration (2005)
Mallik, Aditi, Runge, Keith, Dufty, James W., Cheng, Hai-Ping
The approximate representation of a quantum solid as an equivalent composite semi-classical solid is considered for insulating materials. The composite is comprised of point ions moving on a...
Constructing A Small Strain Potential for Multi-Scale Modeling (2005)
Mallik, Aditi, Runge, Keith, Cheng, Hai-Ping, Dufty, James W.
For problems relating to fracture, a consistent embedding of a quantum (QM) domain in its classical (CM) environment requires that the classical system should yield the same structure and elastic...
Alfalfa Root Nodule Invasion Efficiency Is Dependent on Sinorhizobium meliloti Polysaccharides
Pellock, Brett J., Cheng, Hai-Ping, Walker, Graham C.
The soil bacterium Sinorhizobium meliloti is capable of entering into a nitrogen-fixing symbiosis with Medicago sativa (alfalfa). Particular low-molecular-weight forms of certain polysaccharides...
Cheng, Hai-Ping, Walker, Graham C.
The Rhizobium meliloti exoS gene is involved in regulating the production of succinoglycan, which plays a crucial role in the establishment of the symbiosis between R. meliloti Rm1021 and its host...
Cheng, Hai-Ping, Walker, Graham C.
Rhizobium meliloti Rm1021 must be able to synthesize succinoglycan in order to invade successfully the nodules which it elicits on alfalfa and to establish an effective nitrogen-fixing symbiosis....
Sinorhizobium meliloti ExoR and ExoS Proteins Regulate both Succinoglycan and Flagellum Production
Yao, Shi-Yi, Luo, Li, Har, Katherine J., Becker, Anke, Rüberg, Silvia, Yu, Guan-Qiao, ...
The production of the Sinorhizobium meliloti exopolysaccharide, succinoglycan, is required for the formation of infection threads inside root hairs, a critical step during the nodulation of alfalfa...
Two New Sinorhizobium meliloti LysR-Type Transcriptional Regulators Required for Nodulation
Luo, Li, Yao, Shi-Yi, Becker, Anke, Rüberg, Silvia, Yu, Guan-Qiao, Zhu, Jia-Bi, ...
The establishment of an effective nitrogen-fixing symbiosis between Sinorhizobium meliloti and its legume host alfalfa (Medicago sativa) depends on the timely expression of nodulation genes that are...
Chi, Feng, Shen, Shi-Hua, Cheng, Hai-Ping, Jing, Yu-Xiang, Yanni, Youssef G., Dazzo, Frank B.
Rhizobia, the root-nodule endosymbionts of leguminous plants, also form natural endophytic associations with roots of important cereal plants. Despite its widespread occurrence, much remains unknown...
Zhang, Xue-Song, Cheng, Hai-Ping
The soil bacterium Sinorhizobium meliloti establishes nitrogen-fixing symbiosis with its leguminous host plant, alfalfa, following a series of continuous signal exchanges. The complexity of the...
Alfalfa Root Nodule Invasion Efficiency Is Dependent on Sinorhizobium meliloti Polysaccharides
Pellock, Brett J., Cheng, Hai-Ping, Walker, Graham C.
The soil bacterium Sinorhizobium meliloti is capable of entering into a nitrogen-fixing symbiosis with Medicago sativa (alfalfa). Particular low-molecular-weight forms of certain polysaccharides...
Cheng, Hai-Ping, Walker, Graham C.
The Rhizobium meliloti exoS gene is involved in regulating the production of succinoglycan, which plays a crucial role in the establishment of the symbiosis between R. meliloti Rm1021 and its host...
Cheng, Hai-Ping, Walker, Graham C.
Rhizobium meliloti Rm1021 must be able to synthesize succinoglycan in order to invade successfully the nodules which it elicits on alfalfa and to establish an effective nitrogen-fixing symbiosis....
Sinorhizobium meliloti ExoR and ExoS Proteins Regulate both Succinoglycan and Flagellum Production
Yao, Shi-Yi, Luo, Li, Har, Katherine J., Becker, Anke, Rüberg, Silvia, Yu, Guan-Qiao, ...
The production of the Sinorhizobium meliloti exopolysaccharide, succinoglycan, is required for the formation of infection threads inside root hairs, a critical step during the nodulation of alfalfa...
Two New Sinorhizobium meliloti LysR-Type Transcriptional Regulators Required for Nodulation
Luo, Li, Yao, Shi-Yi, Becker, Anke, Rüberg, Silvia, Yu, Guan-Qiao, Zhu, Jia-Bi, ...
The establishment of an effective nitrogen-fixing symbiosis between Sinorhizobium meliloti and its legume host alfalfa (Medicago sativa) depends on the timely expression of nodulation genes that are...
Chi, Feng, Shen, Shi-Hua, Cheng, Hai-Ping, Jing, Yu-Xiang, Yanni, Youssef G., Dazzo, Frank B.
Rhizobia, the root-nodule endosymbionts of leguminous plants, also form natural endophytic associations with roots of important cereal plants. Despite its widespread occurrence, much remains unknown...
Zhang, Xue-Song, Cheng, Hai-Ping
The soil bacterium Sinorhizobium meliloti establishes nitrogen-fixing symbiosis with its leguminous host plant, alfalfa, following a series of continuous signal exchanges. The complexity of the...