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At least 757 records · Page 42
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on K3(PbCl4)2 by Materials Project

K3(PbCl4)2 is beta indium sulfide-derived structured and crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are three inequivalent K sites. In the first K site, K is bonded to six Cl atoms to form KCl6 octahedra that share corners with six equivalent KCl6 octahedra, edges with two equivalent KCl6 octahedra, and edges with four PbCl6 octahedra. The corner-sharing octahedra tilt angles range from 14–18°. There are a spread of K–Cl bond distances ranging from 3.20–3.25 Å. In the second K site, K is bonded to six Cl atoms to form KCl6 octahedra that share edges with four KCl6 octahedra and edges with four PbCl6 octahedra. There are a spread of K–Cl bond distances ranging from 3.08–3.28 Å. In the third K site, K is bonded to six Cl atoms to form KCl6 octahedra that share corners with six equivalent KCl6 octahedra, edges with two equivalent KCl6 octahedra, and edges with four PbCl6 octahedra. The corner-sharing octahedra tilt angles range from 14–18°. There are a spread of K–Cl bond distances ranging from 3.15–3.25 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded to six Cl atoms to form PbCl6 octahedra that share edges with two equivalent PbCl6 octahedra and edges with six KCl6 octahedra. There are a spread of Pb–Cl bond distances ranging from 2.85–2.98 Å. In the second Pb site, Pb is bonded to six Cl atoms to form PbCl6 octahedra that share edges with two equivalent PbCl6 octahedra and edges with six KCl6 octahedra. There are a spread of Pb–Cl bond distances ranging from 2.72–2.82 Å. There are four inequivalent Cl sites. In the first Cl site, Cl is bonded in a see-saw-like geometry to three K and one Pb atom. In the second Cl site, Cl is bonded to three K and one Pb atom to form corner-sharing ClK3Pb trigonal pyramids. In the third Cl site, Cl is bonded in a rectangular see-saw-like geometry to two K and two Pb atoms. In the fourth Cl site, Cl is bonded in a distorted T-shaped geometry to one K and two Pb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PPb3 by Materials Project

Pb3P crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a 4-coordinate geometry to eight Pb atoms. There are four shorter (3.24 Å) and four longer (3.53 Å) Pb–Pb bond lengths. In the second Pb site, Pb is bonded to eight equivalent Pb and four equivalent P atoms to form a mixture of distorted edge, face, and corner-sharing PbP4Pb8 cuboctahedra. All Pb–P bond lengths are 3.24 Å. P is bonded in a square co-planar geometry to four equivalent Pb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HgPb3 by Materials Project

HgPb3 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Hg is bonded in a body-centered cubic geometry to eight equivalent Pb atoms. All Hg–Pb bond lengths are 3.37 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a 9-coordinate geometry to four equivalent Hg and four equivalent Pb atoms. All Pb–Pb bond lengths are 3.45 Å. In the second Pb site, Pb is bonded in a body-centered cubic geometry to eight equivalent Pb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca4Rh6Pb19 by Materials Project

Ca4Rh6Pb19 crystallizes in the cubic I23 space group. The structure is three-dimensional. Ca is bonded in a distorted q6 geometry to ten Pb atoms. There are a spread of Ca–Pb bond distances ranging from 3.34–3.58 Å. Rh is bonded in a 7-coordinate geometry to one Rh and six Pb atoms. The Rh–Rh bond length is 2.81 Å. There are a spread of Rh–Pb bond distances ranging from 2.71–2.87 Å. There are three inequivalent Pb sites. In the first Pb site, Pb is bonded in a 4-coordinate geometry to two equivalent Ca and two equivalent Rh atoms. In the second Pb site, Pb is bonded in a tetrahedral geometry to four equivalent Ca atoms. In the third Pb site, Pb is bonded in a 4-coordinate geometry to two equivalent Ca and two equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CoPb3 by Materials Project

CoPb3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Co is bonded in a body-centered cubic geometry to eight equivalent Pb atoms. All Co–Pb bond lengths are 3.20 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a distorted body-centered cubic geometry to four equivalent Co and four equivalent Pb atoms. All Pb–Pb bond lengths are 3.20 Å. In the second Pb site, Pb is bonded in a body-centered cubic geometry to eight equivalent Pb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AgPb3 by Materials Project

AgPb3 is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ag is bonded to twelve Pb atoms to form AgPb12 cuboctahedra that share corners with four equivalent AgPb12 cuboctahedra, corners with eight equivalent PbAg4Pb8 cuboctahedra, edges with eight equivalent AgPb12 cuboctahedra, edges with sixteen equivalent PbAg4Pb8 cuboctahedra, faces with four equivalent AgPb12 cuboctahedra, and faces with fourteen PbAg4Pb8 cuboctahedra. There are eight shorter (3.41 Å) and four longer (3.47 Å) Ag–Pb bond lengths. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded to four equivalent Ag and eight Pb atoms to form distorted PbAg4Pb8 cuboctahedra that share corners with twelve equivalent PbAg4Pb8 cuboctahedra, edges with eight equivalent AgPb12 cuboctahedra, edges with sixteen PbAg4Pb8 cuboctahedra, faces with four equivalent AgPb12 cuboctahedra, and faces with fourteen PbAg4Pb8 cuboctahedra. There are four shorter (3.41 Å) and four longer (3.47 Å) Pb–Pb bond lengths. In the second Pb site, Pb is bonded to four equivalent Ag and eight equivalent Pb atoms to form PbAg4Pb8 cuboctahedra that share corners with four equivalent PbAg4Pb8 cuboctahedra, corners with eight equivalent AgPb12 cuboctahedra, edges with twenty-four PbAg4Pb8 cuboctahedra, faces with six equivalent AgPb12 cuboctahedra, and faces with twelve PbAg4Pb8 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CdPb3 by Materials Project

CdPb3 is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Cd is bonded to twelve Pb atoms to form CdPb12 cuboctahedra that share corners with four equivalent CdPb12 cuboctahedra, edges with eight equivalent CdPb12 cuboctahedra, edges with sixteen equivalent PbCd4Pb8 cuboctahedra, faces with four equivalent CdPb12 cuboctahedra, and faces with eight equivalent PbCd4Pb8 cuboctahedra. There are four shorter (3.40 Å) and eight longer (3.55 Å) Cd–Pb bond lengths. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded to four equivalent Cd and eight Pb atoms to form distorted PbCd4Pb8 cuboctahedra that share corners with twelve equivalent PbCd4Pb8 cuboctahedra, edges with eight equivalent CdPb12 cuboctahedra, edges with eight equivalent PbCd4Pb8 cuboctahedra, faces with four equivalent CdPb12 cuboctahedra, and faces with ten equivalent PbCd4Pb8 cuboctahedra. There are four shorter (3.40 Å) and four longer (3.55 Å) Pb–Pb bond lengths. In the second Pb site, Pb is bonded in a square co-planar geometry to four equivalent Cd and eight equivalent Pb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sm4Rh6Pb19 by Materials Project

Sm4Rh6Pb19 crystallizes in the cubic I23 space group. The structure is three-dimensional. Sm is bonded in a 10-coordinate geometry to ten Pb atoms. There are a spread of Sm–Pb bond distances ranging from 3.29–3.56 Å. Rh is bonded in a 7-coordinate geometry to one Rh and six Pb atoms. The Rh–Rh bond length is 2.86 Å. There are a spread of Rh–Pb bond distances ranging from 2.73–2.94 Å. There are three inequivalent Pb sites. In the first Pb site, Pb is bonded in a 4-coordinate geometry to two equivalent Sm and two equivalent Rh atoms. In the second Pb site, Pb is bonded in a tetrahedral geometry to four equivalent Sm atoms. In the third Pb site, Pb is bonded in a 4-coordinate geometry to two equivalent Sm and two equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on P3Pb5O13 by Materials Project

Pb5P3O13 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. there are two inequivalent Pb+2.40+ sites. In the first Pb+2.40+ site, Pb+2.40+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Pb–O bond distances ranging from 2.63–2.97 Å. In the second Pb+2.40+ site, Pb+2.40+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Pb–O bond distances ranging from 2.33–2.92 Å. P+4.67+ is bonded in a tetrahedral geometry to four O2- atoms. There is three shorter (1.56 Å) and one longer (1.57 Å) P–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three Pb+2.40+ and one P+4.67+ atom. In the second O2- site, O2- is bonded in a trigonal planar geometry to three equivalent Pb+2.40+ atoms. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three Pb+2.40+ and one P+4.67+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to three Pb+2.40+ and one P+4.67+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zr5AgPb3 by Materials Project

Zr5AgPb3 crystallizes in the orthorhombic Cmc2_1 space group. The structure is three-dimensional. there are three inequivalent Zr sites. In the first Zr site, Zr is bonded in a 6-coordinate geometry to six Pb atoms. There are three shorter (3.16 Å) and three longer (3.17 Å) Zr–Pb bond lengths. In the second Zr site, Zr is bonded to two equivalent Ag and five Pb atoms to form a mixture of distorted face, edge, and corner-sharing ZrAg2Pb5 pentagonal bipyramids. Both Zr–Ag bond lengths are 2.90 Å. There are a spread of Zr–Pb bond distances ranging from 3.01–3.12 Å. In the third Zr site, Zr is bonded to two equivalent Ag and five Pb atoms to form a mixture of distorted face, edge, and corner-sharing ZrAg2Pb5 pentagonal bipyramids. Both Zr–Ag bond lengths are 2.90 Å. There are a spread of Zr–Pb bond distances ranging from 3.01–3.12 Å. Ag is bonded to six Zr atoms to form distorted face-sharing AgZr6 octahedra. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a 9-coordinate geometry to nine Zr atoms. In the second Pb site, Pb is bonded in a 9-coordinate geometry to nine Zr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on UPb2 by Materials Project

UPb2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. U is bonded in a 9-coordinate geometry to two equivalent U and seven Pb atoms. Both U–U bond lengths are 2.49 Å. There are a spread of U–Pb bond distances ranging from 3.32–3.58 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a 3-coordinate geometry to four equivalent U and four equivalent Pb atoms. There are a spread of Pb–Pb bond distances ranging from 3.29–3.38 Å. In the second Pb site, Pb is bonded in a 7-coordinate geometry to three equivalent U and four equivalent Pb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrCaPb6 by Materials Project

SrCaPb6 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Sr is bonded to twelve Pb atoms to form SrPb12 cuboctahedra that share corners with four equivalent SrPb12 cuboctahedra, corners with eight equivalent CaPb12 cuboctahedra, faces with two equivalent CaPb12 cuboctahedra, and faces with four equivalent SrPb12 cuboctahedra. There are eight shorter (3.56 Å) and four longer (3.59 Å) Sr–Pb bond lengths. Ca is bonded to twelve Pb atoms to form CaPb12 cuboctahedra that share corners with four equivalent CaPb12 cuboctahedra, corners with eight equivalent SrPb12 cuboctahedra, faces with two equivalent SrPb12 cuboctahedra, and faces with four equivalent CaPb12 cuboctahedra. There are eight shorter (3.51 Å) and four longer (3.59 Å) Ca–Pb bond lengths. There are three inequivalent Pb sites. In the first Pb site, Pb is bonded in a distorted rectangular see-saw-like geometry to two equivalent Sr and two equivalent Ca atoms. In the second Pb site, Pb is bonded in a distorted square co-planar geometry to four equivalent Ca atoms. In the third Pb site, Pb is bonded in a square co-planar geometry to four equivalent Sr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZnPb3 by Materials Project

ZnPb3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Zn is bonded in a body-centered cubic geometry to eight equivalent Pb atoms. All Zn–Pb bond lengths are 3.35 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a distorted body-centered cubic geometry to four equivalent Zn and four equivalent Pb atoms. All Pb–Pb bond lengths are 3.35 Å. In the second Pb site, Pb is bonded in a body-centered cubic geometry to eight equivalent Pb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ni3Pb2SeS by Materials Project

Ni3Pb2SeS crystallizes in the trigonal R3m space group. The structure is three-dimensional. Ni is bonded in a distorted linear geometry to four Pb, one Se, and one S atom. There are a spread of Ni–Pb bond distances ranging from 2.85–2.88 Å. The Ni–Se bond length is 2.31 Å. The Ni–S bond length is 2.16 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a distorted hexagonal planar geometry to six equivalent Ni atoms. In the second Pb site, Pb is bonded to six equivalent Ni, one Se, and one S atom to form distorted corner-sharing PbNi6SeS hexagonal bipyramids. The Pb–Se bond length is 3.17 Å. The Pb–S bond length is 3.22 Å. Se is bonded in a 3-coordinate geometry to three equivalent Ni and one Pb atom. S is bonded in a 3-coordinate geometry to three equivalent Ni and one Pb atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Gd5Pb3 by Materials Project

Gd5Pb3 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are three inequivalent Gd sites. In the first Gd site, Gd is bonded in a 6-coordinate geometry to six Pb atoms. All Gd–Pb bond lengths are 3.29 Å. In the second Gd site, Gd is bonded in a 5-coordinate geometry to five Pb atoms. There are a spread of Gd–Pb bond distances ranging from 3.18–3.67 Å. In the third Gd site, Gd is bonded in a 5-coordinate geometry to five Pb atoms. There are a spread of Gd–Pb bond distances ranging from 3.17–3.67 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a 9-coordinate geometry to nine Gd atoms. In the second Pb site, Pb is bonded in a 9-coordinate geometry to nine Gd atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on GaPb3 by Materials Project

GaPb3 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ga is bonded in a 12-coordinate geometry to twelve Pb atoms. There are four shorter (3.41 Å) and eight longer (3.49 Å) Ga–Pb bond lengths. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a 12-coordinate geometry to four equivalent Ga and eight Pb atoms. There are four shorter (3.41 Å) and four longer (3.49 Å) Pb–Pb bond lengths. In the second Pb site, Pb is bonded to four equivalent Ga and eight equivalent Pb atoms to form a mixture of distorted edge, corner, and face-sharing PbGa4Pb8 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg5Pb by Materials Project

Mg5Pb crystallizes in the monoclinic Cm space group. The structure is two-dimensional and consists of one Mg5Pb sheet oriented in the (0, 0, 1) direction. there are five inequivalent Mg sites. In the first Mg site, Mg is bonded to two equivalent Pb atoms to form a mixture of distorted corner and edge-sharing MgPb2 cuboctahedra. Both Mg–Pb bond lengths are 3.29 Å. In the second Mg site, Mg is bonded to two equivalent Pb atoms to form a mixture of distorted corner and edge-sharing MgPb2 cuboctahedra. Both Mg–Pb bond lengths are 3.29 Å. In the third Mg site, Mg is bonded in a distorted single-bond geometry to one Pb atom. The Mg–Pb bond length is 3.25 Å. In the fourth Mg site, Mg is bonded to two equivalent Pb atoms to form a mixture of distorted corner and edge-sharing MgPb2 cuboctahedra. Both Mg–Pb bond lengths are 3.26 Å. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to three equivalent Pb atoms. There are one shorter (3.18 Å) and two longer (3.24 Å) Mg–Pb bond lengths. Pb is bonded in a 12-coordinate geometry to ten Mg atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2025

Measurements of differential two-particle number and transverse momentum correlation functions in pp collisions at $\sqrt{\textit{s}}$ = 13 TeV

Differential two-particle normalized cumulants (R 2 ) and transverse momentum correlations (P 2 ) are measured as a function of the relative pseudorapidity and azimuthal angle difference (Δη, Δφ) of charged particle pairs in minimum bias pp collisions at $\sqrt{s}$ = 13 TeV. The measurements use charged hadrons in the pseudorapidity region of |η| < 0.8 and the transverse momentum range 0.2 < p T < 2.0 in order to focus on soft multiparticle interactions and to complement prior measurements of these correlation functions in p–Pb and Pb–Pb collisions. The correlation functions are reported for both unlike-sign and like-sign pairs and their charge-independent and charge-dependent combinations. Both the R 2 and P 2 measured in pp collisions exhibit features qualitatively similar to those observed in p–Pb and Pb–Pb collisions. The Δη and Δφ root mean square widths of the near-side peak of the correlation functions are evaluated and compared with those observed in p–Pb and Pb–Pb collisions and show smooth evolution with the multiplicity of charged particles produced in the collision. The comparison of the measured correlation functions with predictions from PYTHIA8 shows that this model qualitatively captures their basic structure and characteristics but feature important differences. In addition, the R$^{CD}_{2}$ is used to determine the charge balance function of hadrons produced within the detector acceptance of the measurements. The integral of the balance function is found to be compatible with those reported by a previous measurement in Pb–Pb collisions.

73 NUCLEAR PHYSICS AND RADIATION PHYSICS↗