Electron spectrum and heat capacity of heavy fermions in the canted phase of antiferromagnetic intermetallides

被引：3

作者：

Val'kov, V. V. ^{[1
,2
,3
]}

Dzebisashvili, D. M. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Inst Phys, Krasnoyarsk 660036, Russia

[2] Siberian Fed Univ, Krasnoyarsk 660075, Russia

[3] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2010年 / 110卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

PRESSURE-INDUCED SUPERCONDUCTIVITY; PERIODIC ANDERSON MODEL; KONDO-LATTICE; FERROMAGNETISM; FLUCTUATIONS; COEXISTENCE; DIAGRAM;

D O I：

10.1134/S1063776110020147

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The energy spectrum of heavy fermions in an external magnetic field is calculated for canted magnetic sublattices of antiferromagnetic intermetallides. This makes it possible to determine low-temperature features of electronic heat capacity of heavy-fermion antiferromagnets with the metal-type ground state taking into account the structural rearrangement of the magnetic subsystem. The calculated temperature dependences of the magnetization, heat capacity, and Sommerfeld constant in the vicinity of the point of transition to the antiferromagnetic phase correlate with experimental data obtained for heavy-fermion antiferromagnets PuGa3, Ce2Au2Cd, YbNiSi3, and PuPd5Al2.

引用

页码：301 / 318

页数：18

共 41 条

[1] Pressure-induced superconductivity in ferromagnetic UIr without inversion symmetry [J].

Akazawa, T ;

Hidaka, H ;

Fujiwara, T ;

Kobayashi, TC ;

Yamamoto, E ;

Haga, Y ;

Settai, R ;

Onuki, Y .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (04) :L29-L32

[2] Spin dynamics of the intermediate-valence compound EuCu2Si2 [J].

Alekseev, P. A. ;

Mignot, J.-M. ;

Nemkovski, K. S. ;

Lazukov, V. N. ;

Nefeodova, E. V. ;

Menushenkov, A. P. ;

Kuznetsov, A. V. ;

Bewley, R. I. ;

Gribanov, A. V. .

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2007, 105 (01) :14-17

[3] Heavy-fermion systems studied by mu SR technique [J].

Amato, A .

REVIEWS OF MODERN PHYSICS, 1997, 69 (04) :1119-1179

[4] Hall effect in the Ce(Al1-xCox)2 heavy-fermion system [J].

Bogach, A. V. ;

Burkhanov, G. S. ;

Glushkov, V. V. ;

Demishev, S. V. ;

Chistyakov, O. D. ;

Sluchanko, N. E. .

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2007, 105 (01) :108-111

[5] Magnetic properties of the two allotropic phases of PuGa3 -: art. no. 064438 [J].

Boulet, P ;

Colineau, E ;

Wastin, F ;

Javorsky, P ;

Griveau, JC ;

Rebizant, J ;

Stewart, GR ;

Bauer, ED .

PHYSICAL REVIEW B, 2005, 72 (06)

[6] Magnetic-field tuning of the low-temperature state of YbNiSi3 [J].

Bud'ko, Sergey L. ;

Canfield, Paul C. ;

Avila, Marcos A. ;

Takabatake, Toshiro .

PHYSICAL REVIEW B, 2007, 75 (09)

[7] NEW APPROACH TO THE MIXED-VALENCE PROBLEM [J].

COLEMAN, P .

PHYSICAL REVIEW B, 1984, 29 (06) :3035-3044

[8] The electrodynamic response of heavy-electron compounds [J].

Degiorgi, L .

REVIEWS OF MODERN PHYSICS, 1999, 71 (03) :687-734

[9] The possibility of forming coupled pairs in the periodic Anderson model [J].

Digor, DF ;

Entel, P ;

Marinaro, M ;

Moskalenko, VA ;

Perkins, NB .

THEORETICAL AND MATHEMATICAL PHYSICS, 2001, 127 (02) :664-675

[10] MAGNETIC INSTABILITIES IN KONDO INSULATORS [J].

DORIN, V ;

SCHLOTTMANN, P .

PHYSICAL REVIEW B, 1992, 46 (17) :10800-10807

← 1 2 3 4 5 →