Valence and magnetic state of transition-metal and rare-earth ions in single-crystal multiferroics RMn2O5 (R=Y, Bi, Eu, Gd) from X-ray photoelectron spectroscopy data

2011 ◽  
Vol 184 (8-10) ◽  
pp. 508-516 ◽  
Author(s):  
A.T. Kozakov ◽  
A.G. Kochur ◽  
A.V. Nikolsky ◽  
K.A. Googlev ◽  
V.G. Smotrakov ◽  
...  
Keyword(s):  
Rare Earth ◽  
Transition Metal ◽  
Single Crystal ◽  
Photoelectron Spectroscopy ◽  
Magnetic State ◽  
Rare Earth Ions ◽  
Spectroscopy Data ◽  
X Ray

Rare Earth-rich Cadmium Compounds RE4TCd (T = Ni, Pd, Ir, Pt)

2008 ◽  
Vol 63 (9) ◽  
pp. 1127-1130 ◽  
Author(s):  
Falko M. Schappacher ◽  
Ute Ch. Rodewald ◽  
Rainer Pöttgen
Keyword(s):  
Rare Earth ◽  
Transition Metal ◽  
Single Crystal ◽  
Intermetallic Compounds ◽  
Three Dimensional ◽  
Type Structure ◽  
Space Group ◽  
X Ray ◽  
Structure Space ◽  
Cadmium Compounds

New intermetallic compounds RE4TCd (RE = Y, La-Nd, Sm, Gd-Tm, Lu; T = Ni, Pd, Ir, Pt) were synthesized by melting of the elements in sealed tantalum tubes in a highfrequency furnace. They crystallize with the Gd4RhIn-type structure, space group F 4̄3m, Z = 16. The four gadolinium compounds were characterized by single crystal X-ray diffractometer data: a = 1361.7(1) pm, wR2 = 0.062, 456 F2 values, 19 variables for Gd4NiCd; a = 1382.1(2) pm, wR2 = 0.077, 451 F2 values, 19 variables for Gd4PdCd; a = 1363.6(2) pm, wR2 = 0.045, 494 F2 values, 19 variables for Gd4IrCd; a = 1379.0(1) pm, wR2 = 0.045, 448 F2 values, 19 variables for Gd4PtCd. The rare earth atoms build up transition metal-centered trigonal prisms which are condensed via common corners and edges, leading to three-dimensional adamantane-related networks. The cadmium atoms form Cd4 tetrahedra which fill voids left in the prisms’ network.

Single Crystal Rare-earth Scandate Perovskites Analyzed Using X-ray Photoelectron Spectroscopy: 3. GdScO3(110)

2014 ◽  
Vol 21 (1) ◽  
pp. 149-156 ◽  
Author(s):  
Richard T. Haasch ◽  
Lane W. Martin ◽  
Eric Breckenfeld
Keyword(s):  
Rare Earth ◽  
Single Crystal ◽  
Photoelectron Spectroscopy ◽  
X Ray

Single Crystal Rare-earth Scandate Perovskites Analyzed Using X-ray Photoelectron Spectroscopy: 1. PrScO3(110)

2014 ◽  
Vol 21 (1) ◽  
pp. 131-139
Author(s):  
Richard T. Haasch ◽  
Lane W. Martin ◽  
Eric Breckenfeld
Keyword(s):  
Rare Earth ◽  
Single Crystal ◽  
Photoelectron Spectroscopy ◽  
X Ray

Dy3Co6Sn5 – a New Stannide with an Ordered La3Al11 Type Structure

1995 ◽  
Vol 50 (2) ◽  
pp. 175-179 ◽  
Author(s):  
Rainer Pöttgen
Keyword(s):  
Rare Earth ◽  
Transition Metal ◽  
Single Crystal ◽  
Crystal Chemistry ◽  
Title Compound ◽  
Type Structure ◽  
Orthorhombic Space Group ◽  
X Ray ◽  
Arc Melting ◽  
New Type

The title compound has been obtained by arc-melting of the elemental components and subsequent annealing at 800 °C. It crystallizes in the orthorhombic space group Immm, a = 430.3(1), b = 1235.0(2), c = 967.6(3) pm, V = 0.5142(2) nm3, Z = 2. The structure has been determined from single-crystal X-ray data and refined to R = 0.0181 for 747 F2 values and 28 variables. It is of a new type and can be described as a ternary ordered version of the binary La3Al11-type structure. Dy3Co6Sn5 is built up from DyCo2Sn2 and DyCo2Sn slabs with ThCr2Si2 and Cu3Au-like atomic arrangements, respectively. Its crystal chemistry is compared with that of structurally related rare earth transition metal gallides.

Single Crystal Rare-earth Scandate Perovskites Analyzed Using X-ray Photoelectron Spectroscopy: 4. TbScO3(110)

2014 ◽  
Vol 21 (1) ◽  
pp. 157-164 ◽  
Author(s):  
Richard T. Haasch ◽  
Lane W. Martin ◽  
Eric Breckenfeld
Keyword(s):  
Rare Earth ◽  
Single Crystal ◽  
Photoelectron Spectroscopy ◽  
X Ray

Rare Earth-rich Cadmium Compounds RE23T7Cd4 (T = Co, Ni, Ru, Rh, Ir, Pt)

2009 ◽  
Vol 64 (2) ◽  
pp. 184-188 ◽  
Author(s):  
Frank Tappe ◽  
Rainer Pöttgen
Keyword(s):  
Rare Earth ◽  
Transition Metal ◽  
Single Crystal ◽  
Intermetallic Compounds ◽  
High Frequency ◽  
Three Dimensional ◽  
Type Structure ◽  
Interatomic Distances ◽  
X Ray ◽  
Structure Space

The rare earth-rich intermetallic compounds RE23T7CD4(RE = La-Nd, Sm, Gd, Tb; T = Co, Ni, Ru, Rh, Ir, Pt) were synthesized by melting of the elements in sealed tantalum tubes in a high frequency furnace. They crystallize with the Pr23Ir7Mg4-type structure, space group P63mc, Z = 2. The structures of La23Pt7Cd4 (a = 1025.4(2), c = 2319.5(5) pm, wR2 = 0.0425, 2587 F2, 74 variables), La23Ru6.87(1)Cd4 (a = 1015.0(2), c = 2282.8(4) pm, wR2 = 0.0383, 2459 F2, 75 variables), and Nd23Rh7Cd4 (a = 990.0(2), c = 2239.0(5) pm, wR2 = 0.0507, 2350 F2, 74 variables) were refined from single crystal X-ray diffractometer data. Central structural motifs of the RE23 T7Cd4 compounds are transition metal-centered trigonal prisms of rare earth atoms and Cd4 tetrahedra. The RE6T prisms are condensed via common edges and corners, leading to three-dimensional networks. Typical interatomic distances in the prismatic network and in the Cd4 tetrahedra are 295 - 313 pm La-Pt and 319 - 325 pm Cd-Cd, respectively (examplarily for La23Pt7Cd4)

Single Crystal Rare-earth Scandate Perovskites Analyzed Using X-ray Photoelectron Spectroscopy: 2. NdScO3(110)

2014 ◽  
Vol 21 (1) ◽  
pp. 140-148
Author(s):  
Richard T. Haasch ◽  
Lane W. Martin ◽  
Eric Breckenfeld
Keyword(s):  
Rare Earth ◽  
Single Crystal ◽  
Photoelectron Spectroscopy ◽  
X Ray
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