Antiferromagnetic ground state and heavy-fermion behavior inCe2Pt2Pb

2018 ◽  
Vol 98 (3) ◽  
Author(s):  
N. Kabeya ◽  
S. Takahara ◽  
N. Satoh ◽  
S. Nakamura ◽  
K. Katoh ◽  
...  
Keyword(s):  
Ground State ◽  
Heavy Fermion ◽  
Antiferromagnetic Ground State ◽  
Heavy Fermion Behavior

scholarly journals 31P-NMR and µSR Studies of Filled Skutterudite Compound SmFe4P12: Evidence for Heavy Fermion Behavior with Ferromagnetic Ground State

2006 ◽  
Vol 75 (12) ◽  
pp. 124717 ◽  
Author(s):  
Kenichi Hachitani ◽  
Hideto Fukazawa ◽  
Yoh Kohori ◽  
Isao Watanabe ◽  
Yuichi Yoshimitsu ◽  
...  
Keyword(s):  
Ground State ◽  
Heavy Fermion ◽  
31P Nmr ◽  
Filled Skutterudite ◽  
Ferromagnetic Ground State ◽  
Skutterudite Compound ◽  
Heavy Fermion Behavior

scholarly journals High pressure study on uranium heavy fermion compounds with antiferromagnetic ground state

2009 ◽  
Vol 150 (4) ◽  
pp. 042206 ◽  
Author(s):  
N Tateiwa ◽  
S Ikeda ◽  
Y Haga ◽  
T D Matsuda ◽  
M Nakashima ◽  
...  
Keyword(s):  
High Pressure ◽  
Ground State ◽  
Heavy Fermion ◽  
Antiferromagnetic Ground State ◽  
High Pressure Study

scholarly journals First principles calculations of the structural, electronic, magnetic, and thermodynamic properties of the Nd2MgGe2 and Gd2MgGe2 intermetallic compounds

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
S. Menouer ◽  
O. Miloud Abid ◽  
A. Benzair ◽  
A. Yakoubi ◽  
H. Khachai ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Thermodynamic Properties ◽  
Ground State ◽  
First Principles ◽  
Essential Role ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Rare Earth Compounds ◽  
First Principles Calculations ◽  
Antiferromagnetic Ground State

AbstractIn recent years the intermetallic ternary RE2MgGe2 (RE = rare earth) compounds attract interest in a variety of technological areas. We therefore investigate in the present work the structural, electronic, magnetic, and thermodynamic properties of Nd2MgGe2 and Gd2MgGe2. Spin–orbit coupling is found to play an essential role in realizing the antiferromagnetic ground state observed in experiments. Both materials show metallicity and application of a Debye-Slater model demonstrates low thermal conductivity and little effects of the RE atom on the thermodynamic behavior.

HIGH FIELD PHASE DIAGRAM OF THE FIELD-INDUCED SUPERCONDUCTING STATE OF λ-(BETS)2FeCl4

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3101-3104
Author(s):  
L. BALICAS ◽  
J. S. BROOKS ◽  
K. STORR ◽  
S. UJI ◽  
M. TOKUMOTO ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Superconducting State ◽  
Ground State ◽  
Electrical Transport ◽  
High Field ◽  
Two Dimensional ◽  
Exchange Field ◽  
Organic Conductor ◽  
Field Phase ◽  
Antiferromagnetic Ground State

We investigate by electrical transport the field-induced superconducting state (FISC) in the organic conductor λ- (BETS) 2 FeCl 4. Below 4 K, antiferromagnetic-insulator, metallic, and eventually superconducting (FISC) ground states are observed with increasing in-plane magnetic field. The FISC state survives between 18 and 41 T, and can be interpreted in terms of the Jaccarino-Peter effect, where the external magnetic field compensates the exchange field of aligned Fe 3+ ions. We further argue that the Fe 3+ moments are essential to stabilize the resulting singlet, two-dimensional superconducting state. Here we provide experimental evidence indicating that this state, as well as the insulating antiferromagnetic ground state, is extremely sensitive to hydrostatic pressure.

Crystal electric field and the ground state properties of heavy fermion Ce 3 Ru 4 Sn 13

2014 ◽  
Vol 615 ◽  
pp. 921-928 ◽  
Author(s):  
A. Ślebarski ◽  
M. Fijałkowski ◽  
J. Goraus ◽  
L. Kalinowski ◽  
P. Witas
Keyword(s):  
Electric Field ◽  
Ground State ◽  
Heavy Fermion ◽  
Crystal Electric Field ◽  
Ground State Properties

Coexistence of magnetic order and heavy fermion behavior in Ce7X3

1992 ◽  
Vol 108 (1-3) ◽  
pp. 183-184 ◽  
Author(s):  
J.G. Sereni ◽  
O. Trovarelli ◽  
G. Schmerber ◽  
J.P. Kappler
Keyword(s):  
Heavy Fermion ◽  
Magnetic Order ◽  
Heavy Fermion Behavior

CRYSTALLINE STRUCTURE AND PHYSICAL PROPERTIES OF UCo2Al3

2004 ◽  
Vol 18 (30) ◽  
pp. 3905-3914
Author(s):  
E. VERDÍN ◽  
R. ESCUDERO
Keyword(s):  
Intermetallic Compound ◽  
Physical Properties ◽  
Single Crystal ◽  
Intermetallic Compounds ◽  
Heavy Fermion ◽  
Ferromagnetic Transition ◽  
Crystallographic Characteristics ◽  
Heavy Fermion Behavior ◽  
Small Single Crystal ◽  
Weak Ferromagnetic

Some intermetallic compounds which contain uranium or cerium present heavy fermion characteristics. Take, for example, in the UM 2 Al 3 ( M = Pd , Ni ) family, superconductivity and magnetism coexist and present heavy fermion behavior. This work presents the crystallographic characteristics and physical properties of a new compound of this family; the intermetallic compound UCo 2 Al 3. Our initial crystallographic studies performed in a small single crystal show that the structure is hexagonal and similar to the UNi 2 Al 3 and UPd 2 Al 3 parent compounds. The space group is P6/mmm with a=5.125 Å and c=4.167 Å crystalline parameters. Measurements of resistivity and magnetization performed on the single crystal reveal that the compound is not superconducting when measured at about 1.8 K. The compound is highly anisotropic and features related to Kondo-like behavior are observed. A weak ferromagnetic transition is observed at a temperature of about 20 K.

THEORETICAL APPROACH USING EXTENDED HUCKEL TIGHT-BINDING METHOD OF THE ELECTRONIC STRUCTURE OF CeOs4Sb12 FILLED SKUTTERUDITE

2006 ◽  
Vol 20 (08) ◽  
pp. 1005-1014
Author(s):  
DONALD H. GALVAN ◽  
J. C. SAMANIEGO
Keyword(s):  
Heavy Fermion ◽  
Energy Gap ◽  
Population Analysis ◽  
Tight Binding ◽  
Energy Bands ◽  
Mulliken Population ◽  
Semiconductor Behavior ◽  
Tight Binding Method ◽  
Strong Hybridization ◽  
Heavy Fermion Behavior

Based on band structure, total and projected density of states and Mulliken Population Analysis, the electronic properties of CeOs 4 Sb 12 were investigated. The calculated energy bands depict a semiconductor behavior with an energy gap (direct gap at H ) of the order of 0.45 eV. On the other hand, a strong hybridization occurs between Ce f-orbitals with Os d-, p-, and Sb p-orbitals, which convince us to believe that this hybridization, added to the existence of a mini gap, are responsible for the heavy Fermion behavior, as well as the possibility to consider it a candidate for thermoelectric applications.

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