transport measurements;
Hall effect;
thermopower;
other phase transitions;
charge density waves;
oxide bronzes;
D O I:
10.1016/S0379-6779(97)81090-9
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Thermopower and Hall effect have been measured between 4.2 K and 300 K on the monophosphate tungsten bronzes (PO2)(4)(WO3)(2m) with m = 4 and 6. The Peierls transitions can be clearly observed. In the normal state, both compounds behave as nearly compensated metals in agreement with band structure calculations. The anisotropic thermopower found in the charge density wave state of the m = 6 compound gives information on the carrier pockets left by the gap openings along different crystallographic directions.
机构:
Univ Autonoma Nuevo Leon, Div Estudios Posgrad, Fac Ingn Mecan & Elect, San Nicolas De Los Garza 66451, NL, MexicoUniv Autonoma Nuevo Leon, Div Estudios Posgrad, Fac Ingn Mecan & Elect, San Nicolas De Los Garza 66451, NL, Mexico
Martinez-de la Cruza, A.
Rodriguez, F. E. Longoria
论文数: 0引用数: 0
h-index: 0
机构:
Univ Los Guaritos, Dept Quim, Unidad Cursos Basicos, UDO, Maturin, Monagas, VenezuelaUniv Autonoma Nuevo Leon, Div Estudios Posgrad, Fac Ingn Mecan & Elect, San Nicolas De Los Garza 66451, NL, Mexico
机构:
Univ Autonoma Nuevo Leon, Div Estudios Posgrado, Fac Ingn Mecan & Elect, San Nicolas De Los Garza 66451, NL, MexicoUniv Autonoma Nuevo Leon, Div Estudios Posgrado, Fac Ingn Mecan & Elect, San Nicolas De Los Garza 66451, NL, Mexico
Martinez-de la Cruz, A.
Longoria Rodriguez, F. E.
论文数: 0引用数: 0
h-index: 0
机构:
UDO, Nucleo Monagas, Unidad Curso Basicos, Dept Quim, Maturin, Monagas, VenezuelaUniv Autonoma Nuevo Leon, Div Estudios Posgrado, Fac Ingn Mecan & Elect, San Nicolas De Los Garza 66451, NL, Mexico