Instabilities in Luttinger liquids
- Autores
- Cabra, Daniel Carlos; Drut, Joaquín E.
- Año de publicación
- 2003
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We discuss the appearance of magnetic and charge instabilities, called respectively metamagnetism (MM) and phase separation (PS), in systems which can be described as perturbed Luttinger liquids. We argue that such instabilities can be associated with the vanishing of the effective Fermi velocity v, which in some cases coincides with a divergence of the effective Luttinger parameter K. We analyse in particular an XXZ chain with next-nearest-neighbour interactions in different limits where MM shows up and an extended Hubbard model where PS occurs. Qualitative agreement with previous studies is found.
Facultad de Ciencias Exactas - Materia
-
Física
Quantized spin models, including quantum spin frustration
Magnetization curves, hysteresis, Barkhausen and related effects - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/129663
Ver los metadatos del registro completo
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Instabilities in Luttinger liquidsCabra, Daniel CarlosDrut, Joaquín E.FísicaQuantized spin models, including quantum spin frustrationMagnetization curves, hysteresis, Barkhausen and related effectsWe discuss the appearance of magnetic and charge instabilities, called respectively metamagnetism (MM) and phase separation (PS), in systems which can be described as perturbed Luttinger liquids. We argue that such instabilities can be associated with the vanishing of the effective Fermi velocity v, which in some cases coincides with a divergence of the effective Luttinger parameter K. We analyse in particular an XXZ chain with next-nearest-neighbour interactions in different limits where MM shows up and an extended Hubbard model where PS occurs. Qualitative agreement with previous studies is found.Facultad de Ciencias Exactas2003-02-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1445-1453http://sedici.unlp.edu.ar/handle/10915/129663enginfo:eu-repo/semantics/altIdentifier/issn/0953-8984info:eu-repo/semantics/altIdentifier/issn/1361-648xinfo:eu-repo/semantics/altIdentifier/arxiv/cond-mat/0205098info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-8984/15/9/308info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:31:18Zoai:sedici.unlp.edu.ar:10915/129663Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:31:18.563SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Instabilities in Luttinger liquids |
| title |
Instabilities in Luttinger liquids |
| spellingShingle |
Instabilities in Luttinger liquids Cabra, Daniel Carlos Física Quantized spin models, including quantum spin frustration Magnetization curves, hysteresis, Barkhausen and related effects |
| title_short |
Instabilities in Luttinger liquids |
| title_full |
Instabilities in Luttinger liquids |
| title_fullStr |
Instabilities in Luttinger liquids |
| title_full_unstemmed |
Instabilities in Luttinger liquids |
| title_sort |
Instabilities in Luttinger liquids |
| dc.creator.none.fl_str_mv |
Cabra, Daniel Carlos Drut, Joaquín E. |
| author |
Cabra, Daniel Carlos |
| author_facet |
Cabra, Daniel Carlos Drut, Joaquín E. |
| author_role |
author |
| author2 |
Drut, Joaquín E. |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Física Quantized spin models, including quantum spin frustration Magnetization curves, hysteresis, Barkhausen and related effects |
| topic |
Física Quantized spin models, including quantum spin frustration Magnetization curves, hysteresis, Barkhausen and related effects |
| dc.description.none.fl_txt_mv |
We discuss the appearance of magnetic and charge instabilities, called respectively metamagnetism (MM) and phase separation (PS), in systems which can be described as perturbed Luttinger liquids. We argue that such instabilities can be associated with the vanishing of the effective Fermi velocity v, which in some cases coincides with a divergence of the effective Luttinger parameter K. We analyse in particular an XXZ chain with next-nearest-neighbour interactions in different limits where MM shows up and an extended Hubbard model where PS occurs. Qualitative agreement with previous studies is found. Facultad de Ciencias Exactas |
| description |
We discuss the appearance of magnetic and charge instabilities, called respectively metamagnetism (MM) and phase separation (PS), in systems which can be described as perturbed Luttinger liquids. We argue that such instabilities can be associated with the vanishing of the effective Fermi velocity v, which in some cases coincides with a divergence of the effective Luttinger parameter K. We analyse in particular an XXZ chain with next-nearest-neighbour interactions in different limits where MM shows up and an extended Hubbard model where PS occurs. Qualitative agreement with previous studies is found. |
| publishDate |
2003 |
| dc.date.none.fl_str_mv |
2003-02-24 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
| dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/129663 |
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http://sedici.unlp.edu.ar/handle/10915/129663 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
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openAccess |
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