Structural, thermal, magnetic, and electronic transport properties of the LaNi₂(Ge1-xPx)₂ system

Goetsch, R. J.; Anand, V. K.; Pandey, Abhishek; Johnston, D. C.

doi:10.1103/PhysRevB.85.054517

Title: Structural, thermal, magnetic, and electronic transport properties of the LaNi₂(Ge_1-xP_x)₂ system

Abstract

Polycrystalline samples of LaNi₂(Ge_1-xP_x)₂ (x=0,0.25,0.50,0.75,1) were synthesized and their properties investigated by x-ray diffraction (XRD) measurements at room temperature and by heat capacity C_p, magnetic susceptibility χ, and electrical resistivity ρ measurements versus temperature T from 1.8 to 350 K. Rietveld refinements of powder XRD patterns confirm that these compounds crystallize in the body-centered-tetragonal ThCr₂Si₂-type structure (space group I4/mmm) with composition-dependent lattice parameters that slightly deviate from Vegard's law. The ρ(T) measurements showed a positive temperature coefficient for all samples from 1.8 to 300 K, indicating that all compositions in this system are metallic. The low-T C_p measurements yield a rather large Sommerfeld electronic specific heat coefficient γ=12.4(2) mJ/mol K² for x=0, reflecting a large density of states at the Fermi energy that is comparable with the largest values found for the AFe₂As₂ class of materials with the same crystal structure. The γ decreases approximately linearly with x to 7.4(1) mJ/mol K² for x=1. The χ measurements show nearly temperature-independent paramagnetic behavior across the entire range of compositions except for LaNi₂Ge₂, where a broad peak is observed at ≈300 K from χ(T) measurements up to 1000 K that may arise from short-range antiferromagnetic correlations in a quasi-two-dimensional magnetic system. High-accuracymore »« less

Authors:: Goetsch, R. J.; Anand, V. K.; Pandey, Abhishek; Johnston, D. C.

Publication Date:: Wed Feb 29 00:00:00 EST 2012

Sponsoring Org.:: USDOE

OSTI Identifier:: 1099267

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Physical Review. B, Condensed Matter and Materials Physics

Additional Journal Information:: Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Volume: 85 Journal Issue: 5; Journal ID: ISSN 1098-0121

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Citation Formats


                    Goetsch, R. J., Anand, V. K., Pandey, Abhishek, and Johnston, D. C. Structural, thermal, magnetic, and electronic transport properties of the LaNi₂(Ge1-xPx)₂ system.  United States: N. p., 2012. 
Web.  doi:10.1103/PhysRevB.85.054517.

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                    Goetsch, R. J., Anand, V. K., Pandey, Abhishek, & Johnston, D. C. Structural, thermal, magnetic, and electronic transport properties of the LaNi₂(Ge1-xPx)₂ system.  United States.  https://doi.org/10.1103/PhysRevB.85.054517

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                    Goetsch, R. J., Anand, V. K., Pandey, Abhishek, and Johnston, D. C. Wed .  
"Structural, thermal, magnetic, and electronic transport properties of the LaNi₂(Ge1-xPx)₂ system".  United States.  https://doi.org/10.1103/PhysRevB.85.054517.

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@article{osti_1099267,

  title        = {Structural, thermal, magnetic, and electronic transport properties of the LaNi₂(Ge1-xPx)₂ system},

  author       = {Goetsch, R. J. and Anand, V. K. and Pandey, Abhishek and Johnston, D. C.},

  abstractNote = {Polycrystalline samples of LaNi₂(Ge1-xPx)₂ (x=0,0.25,0.50,0.75,1) were synthesized and their properties investigated by x-ray diffraction (XRD) measurements at room temperature and by heat capacity Cp, magnetic susceptibility χ, and electrical resistivity ρ measurements versus temperature T from 1.8 to 350 K. Rietveld refinements of powder XRD patterns confirm that these compounds crystallize in the body-centered-tetragonal ThCr₂Si₂-type structure (space group I4/mmm) with composition-dependent lattice parameters that slightly deviate from Vegard's law. The ρ(T) measurements showed a positive temperature coefficient for all samples from 1.8 to 300 K, indicating that all compositions in this system are metallic. The low-T Cp measurements yield a rather large Sommerfeld electronic specific heat coefficient γ=12.4(2) mJ/mol K² for x=0, reflecting a large density of states at the Fermi energy that is comparable with the largest values found for the AFe₂As₂ class of materials with the same crystal structure. The γ decreases approximately linearly with x to 7.4(1) mJ/mol K² for x=1. The χ measurements show nearly temperature-independent paramagnetic behavior across the entire range of compositions except for LaNi₂Ge₂, where a broad peak is observed at ≈300 K from χ(T) measurements up to 1000 K that may arise from short-range antiferromagnetic correlations in a quasi-two-dimensional magnetic system. High-accuracy Padé approximants representing the Debye lattice heat capacity and Bloch-Grüneisen electron-phonon resistivity functions versus T are presented and are used to analyze our experimental Cp(T) and ρ(T) data, respectively, for 1.8K≤T≤300 K. The T dependences of ρ for all samples are well-described over this T range by the Bloch-Grüneisen model, although the observed ρ(300 K) values are larger than calculated from this model. A significant T dependence of the Debye temperature determined from the Cp(T) data was observed for each composition. No clear evidence for bulk superconductivity or any other long-range phase transition was found for any of the LaNi₂(Ge1-xPx)₂ compositions studied.},

  doi          = {10.1103/PhysRevB.85.054517},

  journal      = {Physical Review. B, Condensed Matter and Materials Physics},

  number       = 5,

  volume       = 85,

  place        = {United States},

  year         = {Wed Feb 29 00:00:00 EST 2012},

  month        = {Wed Feb 29 00:00:00 EST 2012}

}

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Heat-capacity (1.4--80 K) and magnetic-susceptibility (1.5--300 K) measurements were carried out for the series of six ternary intermetallic compounds with {ital R}Ni{ital X}{sub 2} composition ({ital R}=La, Ce and {ital X}=Si, Ge, and Sn). All of the LaNi{ital X}{sub 2} compounds exhibit normal metallic behavior with an electronic specific-heat coefficient in the range 5.2--5.6 mJ/mol K{sup 2} and Debye temperature decreasing from 451 K (LaNiSi{sub 2}) to 258 K (LaNiSn{sub 2}). The CeNi{ital X}{sub 2} compounds display anomalous behaviors. CeNiSi{sub 2} is an intermediate-valence compound at high temperatures with the cerium valence varying from 3.35+ at room temperature to 3.65+more »« less
https://doi.org/10.1103/PhysRevB.43.10906
Helical antiferromagnetic ordering in EuNi_1.95As₂ single crystals

Journal Article Sangeetha, N. S. ; Smetana, V. ; Mudring, A. -V. ; ... - Physical Review B

The Eu^{+ 2} spins-7/2 in EuNi₂ As₂ with the body-centered tetragonal ThCr₂ Si₂ structure order antiferromagnetically below the Néel temperature T_N = 15 K into a helical antiferromagnetic (AFM) structure with the helix axis aligned along the tetragonal c axis and the Eu ordered moments aligned ferromagnetically within the ab plane as previously reported from neutron diffraction measurements [T. Jin et al., Phys. Rev. B 99, 014425 (2019)]. Here we study the crystallographic, magnetic, thermal, and electronic transport properties of Bi-flux-grown single crystals using single-crystal x-ray diffraction, anisotropic magnetic susceptibility χ, isothermal magnetization M, heat capacity Cp, and electrical resistivitymore »« less
Cited by 10
https://doi.org/10.1103/PhysRevB.100.094438

Full Text Available
Ferromagnetic ordering in CeIr2B2: Transport, magnetization, specific heat, and NMR studies

Journal Article Prasad, A ; Anand, V K ; Paramanik, U B ; ... - Physical Review B

We present a complete characterization of the ferromagnetic system CeIr2B2 using powder x-ray diffraction (XRD), magnetic susceptibility χ(T), isothermal magnetization M(H), specific heat C(T), electrical resistivity ρ(T,H), and thermoelectric power S(T) measurements. Furthermore, 11B NMR study was performed to probe the magnetism on a microscopic scale. Rietveld refinement of powder XRD data confirms that CeIr2B2 crystallizes in CaRh2B2-type orthorhombic structure (space group fddd). The χ(T), C(T), and ρ(T) data confirm bulk ferromagnetic ordering with Tc=5.1 K. Ce ions in CeIr2B2 are in a stable trivalent state. Our low-temperature C(T) data measured down to 0.4 K yield a Sommerfeld coefficient γmore »« less
https://doi.org/10.1103/PhysRevB.86.014414
KCo 2 As 2 : A new portal for the physics of high-purity metals

Journal Article Pandey, Abhishek ; Liu, Y. ; Samal, Saroj L. ; ... - Physical Review Materials

High-quality single crystals of KCo₂As₂ with the body-centered tetragonal ThCr₂Si₂ structure were grown using KAs self flux. Structural, magnetic, thermal, and electrical transport properties were investigated. No clear evidence for any phase transitions was found in the temperature range 2–300 K. The in-plane electrical resistivity ρ versus temperature T is highly unusual, showing a T⁴ behavior below 30 K and an anomalous positive curvature up to 300 K, which is different from the linear behavior expected from the Bloch-Grüneisen theory for electron scattering by acoustic phonons. This positive curvature has been previously observed in the in-plane resistivity of high-conductivity layeredmore »« less
https://doi.org/10.1103/physrevmaterials.6.075001

Full Text Available
Clathrate formation in the systems Sr–Cu–Ge and (Ba,Sr)–Cu–Ge

Journal Article Zeiringer, I. ; Moser, R. ; Kneidinger, F. ; ... - Journal of Solid State Chemistry

In the ternary system Sr–Cu–Ge, a novel clathrate type-I phase was detected, Sr{sub 8}Cu{sub x}Ge{sub 46−x} (5.2≤x<5.4), which exists close to the Zintl limit in a small temperature interval. Sr{sub 8}Cu{sub 5.3}Ge{sub 40.7} decomposes eutectoidally on cooling at 730±3 °C into (Ge), SrGe{sub 2} and τ{sub 1}-SrCu{sub 2−x}Ge{sub 2+x}. Phase equilibria at 700 °C have been established for the Ge rich part and are characterized by the appearance of only one ternary compound, τ{sub 1}-SrCu{sub 2−x}Ge{sub 2+x}, which crystallizes with the ThCr{sub 2}Si{sub 2} structure type and forms a homogeneity range up to x=0.4 (a=0.42850(4), c=1.0370(1) nm). Additionally, the extentmore »« less
https://doi.org/10.1016/J.JSSC.2014.05.014

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Title: Structural, thermal, magnetic, and electronic transport properties of the LaNi₂(Ge1-xPx)₂ system

Abstract

Citation Formats

The first order phase transition and superconductivity in BaNi 2 As 2 single crystals journal, August 2008

Superconducting LaRu2P2 and other alkaline earth and rare earth metal ruthenium and osmium phosphides and arsenides with ThCr2Si2 structure journal, July 1987

Mössbauer and magnetic susceptibility investigations of strontium, lanthanum and europium transition metal phosphides with ThCr2Si2 type structure journal, January 1988

Conventional superconductivity in SrPd 2 Ge 2 journal, January 2012

Structural investigations of ternary lanthanoid and uranium nickel phosphides journal, February 1984

Spin-density-wave anomaly at 140 K in the ternary iron arsenide BaFe 2 As 2 journal, July 2008

Anisotropic thermodynamic and transport properties of single-crystalline Ba 1 − x K x Fe 2 As 2 ( x = 0 and 0.45) journal, July 2008

A simple method for calculating Debye heat capacity values using the Einstein heat capacity formula journal, September 1979

Superconductivity in Hole-Doped (Sr 1−x K x )Fe 2 As 2 journal, September 2008

Lattice and magnetic instabilities in CaFe 2 As 2 : A single-crystal neutron diffraction study journal, September 2008

The Bloch-Grüneisen integrals. Some analytic expressions journal, January 1999

Nickel deficiency in RENi2–xP2 (RE=La, Ce, Pr). Combined crystallographic and physical property studies journal, June 2009

Magnetic and structural transitions in layered iron arsenide systems: A Fe 2 As 2 versus R FeAsO journal, September 2008

Magnetic order in BaMn 2 As 2 from neutron diffraction measurements journal, September 2009

Tern�re Erdalkali-und Seltene Erdmetall-Silicide und-Germanide mit ThCr2Si2-Struktur journal, January 1969

Structural and magnetic phase transitions in the ternary iron arsenides SrFe 2 As 2 and EuFe 2 As 2 journal, October 2008

High pressure synthesis of late rare earth RFeAs(O,F) superconductors; R = Tb and Dy journal, January 2008

de Haas–van Alphen effect in LaNi2Ge2 journal, January 1999

Iron-Based Layered Superconductor La[O 1- x F x ]FeAs ( x = 0.05−0.12) with T c = 26 K journal, March 2008

Superconductivity at 55 K in Iron-Based F-Doped Layered Quaternary Compound Sm[O 1- x F x ] FeAs journal, May 2008

Specific Heats at Low Temperatures book, January 1966

Synthesis and properties of CaFe 2 As 2 single crystals journal, July 2008

The Bloch-Gruneisen function of arbitrary order and its series representations journal, January 2011

Stoichiometry, spin fluctuations, and superconductivity in LaNiPO journal, May 2009

Antiferromagnetic order in the ThCr2Si2 type phosphides CaCo2P2 and CeCo2P2 journal, February 1998

X-ray diffraction study of Na 1 / 3 ( H 2 O ) 1.5 TaS 2 : Observation of a Hendricks-Teller disordered layer lattice journal, July 1984

Structural transition and anisotropic properties of single-crystalline SrFe 2 As 2 journal, July 2008

Pressure and temperature dependence of the magnetic susceptibility of some ytterbium compounds with intermediate valence journal, November 1981

Lattice collapse and the magnetic phase diagram of Sr 1 − x Ca x Co 2 P 2 journal, October 2009

Synthesis, crystal structure and superconductivity of LaNiPO journal, February 2008

Anisotropic transport and magnetic properties of CeNi2Ge2 journal, February 1995

An accurate analytic representation for the Bloch-Gruneisen integral journal, September 1987

Superconductivity at 41 K and Its Competition with Spin-Density-Wave Instability in Layered CeO 1 − x F x FeAs journal, June 2008

Electronic structure and magnetism in BaMn 2 As 2 and BaMn 2 Sb 2 journal, February 2009

Nickel-based phosphide superconductor with infinite-layer structure, BaNi2P2 journal, July 2008

Nesting of electron and hole Fermi surfaces in nonsuperconducting BaFe 2 P 2 journal, June 2011

Superconductivity in SrPd 2 Ge 2 journal, June 2009

Superconductivity and the effects of pressure and structure in single-crystalline SrNi 2 P 2 journal, April 2009

Transport properties of single crystals of CeCu2Si2 and CeNi2Ge2 journal, December 1983

First-order structural phase transition in CaFe 2 As 2 journal, July 2008

Magnetic, transport, and thermal properties of single crystals of the layered arsenide BaMn 2 As 2 journal, March 2009

Analysis of the melting temperatures of RT2 compounds (MgCu2 structure) (R=Rare Earth, TMn, Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, Pt) and RT2X2 compounds (RLa, Ce, Sm, Er; TMn, Fe, Co, Ni, Cu, Ru, Rh, Pd, Pt; XSi, Ge) journal, July 1997

On the computation of Debye functions of integer orders journal, May 1970

Lanthanoid-nickel-phosphides with ThCr2Si2-type structure journal, December 1980

Superconductivity in LaNi2Ge2 and related intermetallics journal, September 1982

Electronic Structure and Fermi Surface for LaNi 2 Ge 2 and CeNi 2 Ge 2 journal, June 1999

Hartree-Fock Diamagnetic Susceptibilities journal, October 1970

Specific heat, resistivity and neutron scattering studies in the Kondo lattice CeNi2Ge2 journal, October 1988

Mott state and quantum critical points in rare-earth oxypnictides () journal, October 2008

Numerical solution of Bloch–Gruneisen function to determine the contribution of electron–phonon interaction in polycrystalline MgB2 superconductor journal, June 2010

The thermal properties of alkali halide crystals. I. The heat capacity of potassium chloride, potassium bromide, potassium iodide and sodium iodide between 2.8 and 270°K journal, November 1957

Superconductivity at 54 K in F-Free NdFeAsO 1- y journal, June 2008

High-temperature superconductivity in Eu 0.5 K 0.5 Fe 2 As 2 journal, September 2008

Low temperature specific heat of superconducting ternary intermetallics La 3 Pd 4 Ge 4 , La 3 Ni 4 Si 4 , and La 3 Ni 4 Ge 4 with U 3 Ni 4 Si 4 -type structure journal, August 2008

Superconducting Fe-Based Compounds ( A 1 − x Sr x ) Fe 2 As 2 with A = K and Cs with Transition Temperatures up to 37 K journal, September 2008

Superconductivity at 38 K in the Iron Arsenide ( Ba 1 − x K x ) Fe 2 As 2 journal, September 2008

Superconductivity in SrNi 2 As 2 single crystals journal, November 2008

A new algorithm for accurate evaluation of the generalized Bloch–Gruneisen function and its applications to MgB2 superconductor journal, March 2007

Superconductivity at 53.5 K in GdFeAsO 1−δ journal, May 2008

Commensurate Spin Density Wave in LaFeAsO: A Local Probe Study journal, August 2008

Magnetic and structural properties of Ca ( Fe 1 − x Co x ) 2 P 2 and Ca ( Ni 1 − x Co x ) 2 P 2 journal, June 2010

Antiferromagnetic transition in EuFe 2 As 2 : A possible parent compound for superconductors journal, August 2008

Electrical resistivity and specific heat of single-crystalline EuFe 2 As 2 : A magnetic homologue of SrFe 2 As 2 journal, August 2008

The crystal structure and electronic properties of a new metastable non-stoichiometric BaAl 4 -type compound crystallized from amorphous La 6 Ni 34 Ge 60 alloy journal, October 2004

Magnetic properties of CaNi2P2 and the corresponding lanthanoid nickel phosphides with ThCr2Si2 type structure journal, January 1987

Quaternary rare earth transition metal arsenide oxides RTAsO (T=Fe, Ru, Co) with ZrCuSiAs type structure journal, April 2000

Competing orders and spin-density-wave instability in La(O 1−x F x )FeAs journal, June 2008

Superconductivity in the iron-based F-doped layered quaternary compound Nd[O 1 − x F x ]FeAs journal, May 2008

Superconductivity at 43 K in SmFeAsO1-xF x journal, May 2008

Spin-Glass Behavior in LaFe x Co 2– x P 2 Solid Solutions: Interplay Between Magnetic Properties and Crystal and Electronic Structures journal, October 2011

Hall effect in Y 1 − x U x Pd 3 and CeNi 2 Ge 2 journal, August 1998

Magnetic exchange interactions in BaMn 2 As 2 : A case study of the J 1 - J 2 - J c Heisenberg model journal, September 2011

The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides journal, October 2010

Title: Structural, thermal, magnetic, and electronic transport properties of the LaNi₂(Ge_1-xP_x)₂ system

The first order phase transition and superconductivity in BaNi ₂ As ₂ single crystals
journal, August 2008

Superconducting LaRu2P2 and other alkaline earth and rare earth metal ruthenium and osmium phosphides and arsenides with ThCr2Si2 structure
journal, July 1987

Mössbauer and magnetic susceptibility investigations of strontium, lanthanum and europium transition metal phosphides with ThCr2Si2 type structure
journal, January 1988

Conventional superconductivity in SrPd $_{2}$ Ge $_{2}$
journal, January 2012

Structural investigations of ternary lanthanoid and uranium nickel phosphides
journal, February 1984

Spin-density-wave anomaly at 140 K in the ternary iron arsenide ${BaFe}_{2} {As}_{2}$
journal, July 2008

Anisotropic thermodynamic and transport properties of single-crystalline ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$ ( $x = 0$ and 0.45)
journal, July 2008

A simple method for calculating Debye heat capacity values using the Einstein heat capacity formula
journal, September 1979

Superconductivity in Hole-Doped (Sr _1−x K _x )Fe ₂ As ₂
journal, September 2008

Lattice and magnetic instabilities in ${CaFe}_{2} {As}_{2}$ : A single-crystal neutron diffraction study
journal, September 2008

The Bloch-Grüneisen integrals. Some analytic expressions
journal, January 1999

Nickel deficiency in RENi2–xP2 (RE=La, Ce, Pr). Combined crystallographic and physical property studies
journal, June 2009

Magnetic and structural transitions in layered iron arsenide systems: $A {Fe}_{2} {As}_{2}$ versus $R FeAsO$
journal, September 2008

Magnetic order in ${BaMn}_{2} {As}_{2}$ from neutron diffraction measurements
journal, September 2009

Tern�re Erdalkali-und Seltene Erdmetall-Silicide und-Germanide mit ThCr2Si2-Struktur
journal, January 1969

Structural and magnetic phase transitions in the ternary iron arsenides SrFe ₂ As ₂ and EuFe ₂ As ₂
journal, October 2008

High pressure synthesis of late rare earth RFeAs(O,F) superconductors; R = Tb and Dy
journal, January 2008

de Haas–van Alphen effect in LaNi2Ge2
journal, January 1999

Iron-Based Layered Superconductor La[O _1- _x F _x ]FeAs ( x = 0.05−0.12) with T _c = 26 K
journal, March 2008

Superconductivity at 55 K in Iron-Based F-Doped Layered Quaternary Compound Sm[O _{1- x} F _x ] FeAs
journal, May 2008

Specific Heats at Low Temperatures
book, January 1966

Synthesis and properties of CaFe ₂ As ₂ single crystals
journal, July 2008

The Bloch-Gruneisen function of arbitrary order and its series representations
journal, January 2011

Stoichiometry, spin fluctuations, and superconductivity in LaNiPO
journal, May 2009

Antiferromagnetic order in the ThCr2Si2 type phosphides CaCo2P2 and CeCo2P2
journal, February 1998

X-ray diffraction study of ${Na}_{1 / 3}$ ${(H_{2} O)}_{1.5}$ ${TaS}_{2}$ : Observation of a Hendricks-Teller disordered layer lattice
journal, July 1984

Structural transition and anisotropic properties of single-crystalline ${SrFe}_{2} {As}_{2}$
journal, July 2008

Pressure and temperature dependence of the magnetic susceptibility of some ytterbium compounds with intermediate valence
journal, November 1981

Lattice collapse and the magnetic phase diagram of ${Sr}_{1 - x} {Ca}_{x} {Co}_{2} P_{2}$
journal, October 2009

Synthesis, crystal structure and superconductivity of LaNiPO
journal, February 2008

Anisotropic transport and magnetic properties of CeNi2Ge2
journal, February 1995

An accurate analytic representation for the Bloch-Gruneisen integral
journal, September 1987

Superconductivity at 41 K and Its Competition with Spin-Density-Wave Instability in Layered ${CeO}_{1 - x} F_{x} FeAs$
journal, June 2008

Electronic structure and magnetism in ${BaMn}_{2} {As}_{2}$ and ${BaMn}_{2} {Sb}_{2}$
journal, February 2009

Nickel-based phosphide superconductor with infinite-layer structure, BaNi2P2
journal, July 2008

Nesting of electron and hole Fermi surfaces in nonsuperconducting BaFe $_{2}$ P $_{2}$
journal, June 2011

Superconductivity in ${SrPd}_{2} {Ge}_{2}$
journal, June 2009

Superconductivity and the effects of pressure and structure in single-crystalline ${SrNi}_{2} P_{2}$
journal, April 2009

Transport properties of single crystals of CeCu2Si2 and CeNi2Ge2
journal, December 1983

First-order structural phase transition in ${CaFe}_{2} {As}_{2}$
journal, July 2008

Magnetic, transport, and thermal properties of single crystals of the layered arsenide ${BaMn}_{2} {As}_{2}$
journal, March 2009

Analysis of the melting temperatures of RT2 compounds (MgCu2 structure) (R=Rare Earth, TMn, Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, Pt) and RT2X2 compounds (RLa, Ce, Sm, Er; TMn, Fe, Co, Ni, Cu, Ru, Rh, Pd, Pt; XSi, Ge)
journal, July 1997

On the computation of Debye functions of integer orders
journal, May 1970

Lanthanoid-nickel-phosphides with ThCr2Si2-type structure
journal, December 1980

Superconductivity in LaNi2Ge2 and related intermetallics
journal, September 1982

Electronic Structure and Fermi Surface for LaNi ₂ Ge ₂ and CeNi ₂ Ge ₂
journal, June 1999

Hartree-Fock Diamagnetic Susceptibilities
journal, October 1970

Specific heat, resistivity and neutron scattering studies in the Kondo lattice CeNi2Ge2
journal, October 1988

Mott state and quantum critical points in rare-earth oxypnictides ()
journal, October 2008

Numerical solution of Bloch–Gruneisen function to determine the contribution of electron–phonon interaction in polycrystalline MgB2 superconductor
journal, June 2010

The thermal properties of alkali halide crystals. I. The heat capacity of potassium chloride, potassium bromide, potassium iodide and sodium iodide between 2.8 and 270°K
journal, November 1957

Superconductivity at 54 K in F-Free NdFeAsO _{1- y}
journal, June 2008

High-temperature superconductivity in ${Eu}_{0.5} K_{0.5} {Fe}_{2} {As}_{2}$
journal, September 2008

Low temperature specific heat of superconducting ternary intermetallics La ₃ Pd ₄ Ge ₄ , La ₃ Ni ₄ Si ₄ , and La ₃ Ni ₄ Ge ₄ with U ₃ Ni ₄ Si ₄ -type structure
journal, August 2008

Superconducting Fe-Based Compounds $(A_{1 - x} {Sr}_{x}) {Fe}_{2} {As}_{2}$ with $A = K$ and Cs with Transition Temperatures up to 37 K
journal, September 2008

Superconductivity at 38 K in the Iron Arsenide $({Ba}_{1 - x} K_{x}) {Fe}_{2} {As}_{2}$
journal, September 2008

Superconductivity in ${SrNi}_{2} {As}_{2}$ single crystals
journal, November 2008

A new algorithm for accurate evaluation of the generalized Bloch–Gruneisen function and its applications to MgB2 superconductor
journal, March 2007

Superconductivity at 53.5 K in GdFeAsO _1−δ
journal, May 2008

Commensurate Spin Density Wave in LaFeAsO: A Local Probe Study
journal, August 2008

Magnetic and structural properties of $Ca {({Fe}_{1 - x} {Co}_{x})}_{2} P_{2}$ and $Ca {({Ni}_{1 - x} {Co}_{x})}_{2} P_{2}$
journal, June 2010

Antiferromagnetic transition in ${EuFe}_{2} {As}_{2}$ : A possible parent compound for superconductors
journal, August 2008

Electrical resistivity and specific heat of single-crystalline ${EuFe}_{2} {As}_{2}$ : A magnetic homologue of ${SrFe}_{2} {As}_{2}$
journal, August 2008

The crystal structure and electronic properties of a new metastable non-stoichiometric BaAl ₄ -type compound crystallized from amorphous La ₆ Ni ₃₄ Ge ₆₀ alloy
journal, October 2004

Magnetic properties of CaNi2P2 and the corresponding lanthanoid nickel phosphides with ThCr2Si2 type structure
journal, January 1987

Quaternary rare earth transition metal arsenide oxides RTAsO (T=Fe, Ru, Co) with ZrCuSiAs type structure
journal, April 2000

Competing orders and spin-density-wave instability in La(O _1−x F _x )FeAs
journal, June 2008

Superconductivity in the iron-based F-doped layered quaternary compound Nd[O _{1 − x} F _x ]FeAs
journal, May 2008

Superconductivity at 43 K in SmFeAsO1-xF x
journal, May 2008

Spin-Glass Behavior in LaFe _x Co _{2– x} P ₂ Solid Solutions: Interplay Between Magnetic Properties and Crystal and Electronic Structures
journal, October 2011

Hall effect in $Y_{1 - x} U_{x} {Pd}_{3}$ and ${CeNi}_{2} {Ge}_{2}$
journal, August 1998

Magnetic exchange interactions in ${BaMn}_{2} {As}_{2}$ : A case study of the $J_{1}$ - $J_{2}$ - $J_{c}$ Heisenberg model
journal, September 2011

The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides
journal, October 2010