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ONOFRE ROJAS SANTOS

DEPARTAMENTO DE FÍSICA

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onofre rojas santos

DFI - DEPARTAMENTO DE FÍSICA

Produção Intelectual

Coordenação de Bases de Pesquisa (1)

01/1970 Modelos de Spins Clássicos e Quânticos na rede,

Artigos (82)

2020, , Thermal Entanglement and Correlated Coherence in Two Coupled Double Quantum Dots Systems, ISSN: 00033804
2020, , Magnetic behavior of a ferroferrimagnetic ternary alloy with a selective site disorder: Case study of a mixed-spin Ising model on a honeycomb lattice, ISSN: 24700045
2020, , Peculiarities in pseudo-transitions of a mixed spin-(1/2, 1) Ising-Heisenberg double-tetrahedral chain in an external magnetic field, ISSN: 09538984
2020, , Spontaneous Decay of a Dressed Harmonic Oscillator Inside a Spherical Cavity, ISSN: 01039733
2020, , Residual Entropy and Low Temperature Pseudo-Transition for One-Dimensional Models, ISSN: 05874246
2020, , A Conjecture on the Relationship Between Critical Residual Entropy and Finite Temperature Pseudo-transitions of One-dimensional Models, ISSN: 01039733
2019, , Anomalous spin frustration enforced by a magnetoelastic coupling in the mixed-spin Ising model on decorated planar lattices, ISSN: 03048853
2019, , Universality and quasicritical exponents of one-dimensional models displaying a quasitransition at finite temperatures, ISSN: 24700045
2019, , Tuning the thermal entanglement in a Ising-XXZ diamond chain with two impurities, ISSN: 15700755
2019, , Absence of a spontaneous long-range order in a mixed spin-(1/2, 3/2) Ising model on a decorated square lattice due to anomalous spin frustration driven by a magnetoelastic coupling, ISSN: 03759601
2019, , Correlation functions for a spin- $\frac{1}{2}$ Ising-XYZ diamond chain: Further evidence for quasi-phases and pseudo-transitions, ISSN: 00034916
2019, , Geometrically frustrated Ising-Heisenberg spin model on expanded Kagomé lattice, ISSN: 03048853
2018, , Non-conserved magnetization operator and -fire-and-ice? ground states in the Ising-Heisenberg diamond chain, ISSN: 03048853
2018, , Heterobimetallic Dy-Cu coordination compound as a classical-quantum ferrimagnetic chain of regularly alternating Ising and Heisenberg spins, ISSN: 03048853
2018, , Quasi-phases and pseudo-transitions in one-dimensional models with nearest neighbor interactions, ISSN: 00381098
2018, , Quantum entanglement in the neighborhood of pseudo-transition for a spin-1/2 Ising-XYZ diamond chain, ISSN: 03048853
2017, , Effect of the Canting of Local Anisotropy Axes on Ground-State Properties of a Ferrimagnetic Chain with Regularly Alternating Ising and Heisenberg Spins, ISSN: 05874246
2017, , Thermal entanglement in a spin-1/2 Ising-XYZ distorted diamond chain with the second-neighbor interaction between nodal Ising spins, ISSN: 03784371
2017, , Entanglement of a two-atom system driven by the quantum vacuum in arbitrary cavity size, ISSN: 03759601
2017, , Entangled state teleportation through a couple of quantum channels composed of, ISSN: 00034916
2017, , Geometrically frustrated Cairo pentagonal lattice stripe with Ising and Heisenberg exchange interactions, ISSN: 00034916
2017, , Entangled state teleportation through a couple of quantum channels composed of , ISSN: 00034916

2016, , Zero temperature non-plateau magnetization and magnetocaloric effect in an Ising-XYZ diamond chain structure, ISSN: 03759601

2016, , Spin frustration of a spin-1/2 Ising-Heisenberg three-leg tube as an indispensable ground for thermal entanglement, ISSN: 03048853

2016, , Thermal entanglement and sharp specific-heat peak in an exactly solved spin-1/2 Ising-Heisenberg ladder with alternating Ising and Heisenberg inter-leg couplings, ISSN: 00381098

2016, , Quantum decoration transformation for spin models, ISSN: 00034916

2015, , Absence of actual plateaus in zero-temperature magnetization curves of quantum spin clusters and chains, ISSN: 10980121

2015, , The β-expansion of the D=1 fermionic spinless Hubbard model off the half-filling regime, ISSN: 1607324X

2014, , Magnetization process, bipartite entanglement, and enhanced magnetocaloric effect of the exactly solved spin-1/2 Ising-Heisenberg tetrahedral chain, ISSN: 15393755

2014, , Magnetic, Thermal, and Entanglement Properties of a Distorted Ising-Hubbard Diamond Chain, ISSN: 00319015

2014, , On the particle-hole symmetry of the fermionic spinless Hubbard model in D=1, ISSN: 1607324X

2014, , Rise of pairwise thermal entanglement for an alternating Ising and Heisenberg spin chain in an arbitrarily oriented magnetic field, ISSN: 10502947

2014, , Magnetization non-rational quasi-plateau and spatially modulated spin order in the model of the single-chain magnet, [{(CuL) ₂ Dy}{Mo(CN) ₈ }]·2CH ₃ CN·H ₂ O, ISSN: 02955075

2014, , Magnetic, Thermal, and Entanglement Properties of a Distorted Ising-Hubbard Diamond Chain, ISSN: 00319015

2014, , Kinetically-Driven Frustration in Hybrid Spin Ladders, ISSN: 05874246

2014, , Pairwise thermal entanglement in the Ising-XYZ diamond chain structure in an external magnetic field, ISSN: 02955075

2013, , Thermal entanglement in an orthogonal dimer-plaquette chain with alternating Ising-Heisenberg coupling, ISSN: 09538984

2013, , Interplay between spin frustration and thermal entanglement in the exactly solved Ising Heisenberg tetrahedral chain, ISSN: 03759601

2012, , Thermal entanglement in an exactly solvable Ising- XXZ diamond chain structure, ISSN: 10502947

2012, , Thermal entanglement of a spin-1/2 Ising-Heisenberg model on a symmetrical diamond chain, ISSN: 09538984

2012, , Geometrical frustration of an extended Hubbard diamond chain in the quasiatomic limit, ISSN: 15393755

2012, , Bijection between spin and a cluster of spins, ISSN: 03784371

2012, , Spin-phonon coupling induced frustration in the exactly solved spin-1/2 Ising model on a decorated planar lattice, ISSN: 03759601

2012, , The high-temperature expansion of the classical Ising model with S_{z}^{2} term, ISSN: 1607324X

2012, , Equivalence between non-bilinear spin-S Ising model and Wajnflasz model, ISSN: 14346028

2012, , Frustrated Ising model on the Cairo pentagonal lattice, ISSN: 15502376

2012, , Spin-phonon coupling induced frustration in the exactly solved spin-1/2 Ising model on a decorated planar lattice, ISSN: 03759601

2012, , Thermal entanglement of a spin-1/2 Ising Heisenberg model on a symmetrical diamond chain, ISSN: 09538984

2012, , Spontaneous distortion in the spin-1/2 Ising-Heisenberg model on decorated planar lattices with a magnetoelastic coupling, ISSN: 14346028

2011, , A frustrated three-dimensional antiferromagnet: stacked layers, ISSN: 09538984

2011, , Exactly solvable mixed-spin Ising-Heisenberg diamond chain with biquadratic interactions and single-ion anisotropy, ISSN: 10980121

2011, , The specific heat and the magnetization of the Fe4 and the Fe8 SMMs, ISSN: 03784371

2011, , Direct algebraic mapping transformation for decorated spin models, ISSN: 17518113

2011, , The specific heat and the magnetization of the and the SMMs, ISSN: 03784371

2011, , Spinless fermion model on diamond chain, ISSN: 03759601

2011, , QUALITATIVE COMPARISON OF THE THERMODYNAMICS OF Mn ₁₂ -ac AND Fe ₈ MOLECULE MAGNETS FOR Dβ ~ 0.031, ISSN: 02179849

2010, , Spin-wave analysis of the spin-1 Heisenberg antiferromagnet with uniaxial single-ion anisotropy in a field, ISSN: 10980121

2009, , A set of exactly solvable Ising models with half-odd-integer spin, ISSN: 03759601

2009, , Thermodynamics of the Mn ₁₂ -ac molecule in a skew magnetic field at T gtrsim 21 K, ISSN: 09538984

2009, , Generalized transformation for decorated spin models, ISSN: 03784371

2009, , Two-dimensional XXZ-Ising model on a square-hexagon lattice, ISSN: 15393755

2008, , Phase diagram of the asymmetric tetrahedral Ising-Heisenberg chain, ISSN: 09538984

2008, , Geometric frustration in Ising diamond chains, ISSN: 03784371

2008, , Thermodynamics of the quantum and classical Ising models with skew magnetic field, ISSN: 03784371

2008, , The spin-1/2 ising model with skew magnetic field at high temperatures, ISSN: 01039733

2007, , The high temperature expansion of the classical XYZ chain, ISSN: 03784371

2007, , On the series expansion of the general spin-S Ising chain, ISSN: 03784371

2005, , Thermodynamics of the quantum spin-S XXZ chain, ISSN: 14346028

2005, , Thermodynamics of the spin ladder as a composite chain model, ISSN: 03784371

2005, , High-temperature series expansion of the Helmholtz free energy of the quantum spin- $S$ $X Y Z$ chain, ISSN: 10980121

2004, , High-temperature expansion of the tetrahedral spin-1/2 and spin-2 XXZ models, ISSN: 10980121

2003, , The thermodynamics of the anisotropic spin- S XXZ chain in the high-temperature region, ISSN: 09538984

2003, , Phase diagram of a coupled tetrahedral Heisenberg model, ISSN: 24699950

2003, , Remarks on the convergence of the β-expansion of and s=1 Ising models, ISSN: 03784371

2003, , Analytical results for the high-temperature expansion of the one-dimensional $s = 1 XXZ$ model, ISSN: 24699950

2002, , High temperature expansion for a chain model, ISSN: 00222488

2001, , Thermodynamics of the limiting cases of the XXZ model without Bethe ansatz, ISSN: 01039733

2001, , Analytical results of the one-dimensional Hubbard model in the high-temperature limit, ISSN: 10953795

1999, , Grassmann algebra and fermions at finite temperature, ISSN: 00222488

1999, , Functional approach without path integrals to finite temperature free fermions, ISSN: 01039733

1999, , Application of non-commutative algebra to a soluble fermionic model, ISSN: 03784371

1999, , Unidimensional generalized Hubbard model in the high temperature limit, ISSN: 03784371

Publicação em Eventos (41)

2015, , Quantum teleportation via Ising-XXZ diamond chain structure, Brazilian Physical Society Meeting 2015,

2012, , Frustrated Ising model on Cairo pentagonal lattice, The 2012 International Conference on Highly Frustrated Magnetism,

2011, , A Frustrated 3-Dimensional Antiferromagnet: Stacked $J_1- J_2$ Layers, Encontro de Física,

2010, , Spin-wave analysis of the spin-1 Heisenberg antiferromagnet with uniaxial single-ion anisotropy in a field., XXXIII Encontro Nacional de Física da Matéria Condensada,

2010, , Mn12 teresa, XXXIII Encontro Nacional de Física da Matéria Condensada,

2008, , The spin-1/2 Ising model with skew magnetic field at high temperatures, XXXI Encontro Nacional de Fisica da Materia Condensada,

2008, Eduardo V Corrêa Silva, James. E. F. Skea, Sergio Martins de Souza, Onofre Rojas Santos, Maria Teresa Thomaz, The spin-1/2 Ising model with skew magnetic field at high temperatures, XXXI Encontro Nacional de Física da Matéria Condensada, Resumo

2008, , Two dimensional XXZ-Ising model on square-hexagon lattice, XXIX Encontro Nacional de Física de Partículas e Campos,

2008, , Phase diagram of the asymmetric tetrahedral Ising-Heisenberg chain, XXIX Encontro Nacional de Física de Partículas e Campos,

2008, , Thermodynamics of the quantum and classical Ising models with skew magnetic field, XXIX Encontro Nacional de Física de Partículas e Campos,

2007, Juan Segundo Valverde Salvador, Onofre Rojas Santos, Sergio Martins de Souza, The tetrahedral Ising-Heisenberg model for spin 1/2 and 1, XXVIII Encontro Nacional de Física de Partículas e Campos, Resumo

2007, Eduardo V Corrêa Silva, Sergio Martins de Souza, Onofre Rojas Santos, James. E. F. Skea, Maria Teresa Thomaz, The Spin-1/2 Ising Model with Skew Magnetic Field at High Temperatures, The International Conference on Strongly Correlated Electron systemtem, Resumo

2007, Juan Segundo Valverde Salvador, Onofre Rojas Santos, Sergio Martins de Souza, Geometric Frustration in one-dimensional Ising Diamind chain, XXVIII Encontro Nacional de Física de Partículas e Campos, Resumo

2007, Juan Segundo Valverde Salvador, Onofre Rojas Santos, Sergio Martins de Souza, Extended transformation of decorated Ising models, XXVIII Encontro Nacional de Física de Partículas e Campos, Resumo

2006, Eduardo V Corrêa Silva, Onofre Rojas Santos, Sergio Martins de Souza, James E.F. Skea, Maria Teresa Thomaz, The high temperature expansion of the classical XYZ chain, XXVII Encontro Nacional de Física de Partículas e Campos, Resumo

2006, Onofre Rojas Santos, Sergio Martins de Souza, Eduardo V Corrêa Silva, Maria Teresa Thomaz, High-temperature series expansion of the Helmholtz free energy of the quantum spin-S XYZ chain, XXIX Encontro Nacional de Física da Matéria Condensada, Resumo

2006, Onofre Rojas Santos, Sergio Martins de Souza, Geometric Frustration in Ising Diamond Chain, XXVII Encontro Nacional de Física de Partículas e Campos, Resumo

2005, Onofre Rojas Santos, Sergio Martins de Souza, Eduardo V Corrêa Silva, Maria Teresa Thomaz, Thermodynamics of the $S=1$ spin ladder as a composite $S=2$ chain model, XXVIII Encontro Nacional de Física de Matéria Condensada, Resumo

2005, Onofre Rojas Santos, Sergio Martins de Souza, Eduardo V Corrêa Silva, Maria Teresa Thomaz, High-temperature series expansion of the Helmholtz free energy of the quantum spin-S XYZ chain, XXVI Encontro Nacional de Física de Partículas e Campos, Resumo

2004, Onofre Rojas Santos, Sergio Martins de Souza, Winder A. Moura-Melo, On the Quasi-one-dimensional Ladder Ising Models, XXVII Encontro Nacional de Física de Matérica Condensada, Resumo

2004, Onofre Rojas Santos, Sergio Martins de Souza, Eduardo V Corrêa Silva, Maria Teresa Thomaz, The anisotropic spin-S XXZ chain at the high temperature, XXV Encontro Nacional de Física de Partículas e Campos, Resumo

2004, Onofre Rojas Santos, Sergio Martins de Souza, Eduardo V Corrêa Silva, Maria Teresa Thomaz, The high temperature expansion of the tetrahedral spin-1/2 model, XXVII Encontro Nacional de Física de Matéria Condensada, Resumo

2003, Onofre Rojas Santos, Sergio Martins de Souza, Eduardo V Corrêa Silva, Winder A. Moura-Melo, Revisiting one dimensional Ising model with arbitrary and infinite spin, XXIV Encontro Nacional de Física de Partículas e Campos, Resumo

2003, Onofre Rojas Santos, Sergio Martins de Souza, Eduardo V Corrêa Silva, Maria Teresa Thomaz, The thermodynamics of the anisotropic spin-S XXZ chain in the high temperature region, XXIV Encontro Nacional de Física de Partículas e Campos, Resumo

2003, Onofre Rojas Santos, Sergio Martins de Souza, Eduardo V Corrêa Silva, Maria Teresa Thomaz, The thermodynamics of the anisotropic spin-2 XXZ chain in the high temperature region, XXIV Encontro Nacional de Física de Partículas e Campos, Resumo

2003, Onofre Rojas Santos, Sergio Martins de Souza, Eduardo V Corrêa Silva, Maria Teresa Thomaz, The hihg temperature expansion of the tetrahedral spin model, XXIV Encontro Nacional de Física de Partículas e Campos, Resumo

2002, Onofre Rojas Santos, Winder A. Moura-Melo, Sergio Martins de Souza, Eduardo V Silva Corrêa, Maria Teresa Thomaz, The high temperature expansion of the onedimensional s=1 Heisenberg XXZ model, XXIII Encontro Nacional de Física de Partículas e Campos, Resumo

2002, Onofre Rojas Santos, Winder A. Moura-Melo, Sergio Martins de Souza, Maria Teresa Thomaz, One-dimensional Ising model with arbitrary Spin Revisited, XXV Encontro Nacional de Física da Matéria Condensada, Resumo

2002, Onofre Rojas Santos, Winder A. Moura-Melo, Sergio Martins de Souza, Eduardo V Silva Corrêa, Maria Teresa Thomaz, A note on the thermodynamics of $s=1/2$ and $s=1$ Ising model, XXV Encontro Nacional de Física da Matéria Condensada, Resumo

2001, Onofre Rojas Santos, Sergio Martins de Souza, Maria Teresa Thomaz, The High Temperature Expansion of the Heisenberg XXZ Model, XXIV Encontro Nacional de Física da Materia Condensada, Resumo

2001, Winder A. Moura-Melo, Sergio Martins de Souza, Onofre Rojas Santos, Maria Teresa Thomaz, High temperature expansion of the spin-1 Heisenberg XXZ chain, XXII Encontro Nacional de Física de Partículas e Campos, Resumo

2001, Onofre Rojas Santos, Sergio Martins de Souza, Maria Teresa Thomaz, High Temperature Expansion of the Heisemberg XXZ Model, STATPHYS 21 Coference Abstract, Resumo

2001, Onofre Rojas Santos, Sergio Martins de Souza, Maria Teresa Thomaz, Analitical Results of the One-Dimensional Hubbard Model in the High Temperature Limit, STATPHYS 21 Coference Abstract, Resumo

2001, Onofre Rojas Santos, Sergio Martins de Souza, Maria Teresa Thomaz, XXZ spin-1/2 model in the High Temperature Limit, XI Escola de Verão Jorge André Swieca - Partículas e Campos, Resumo

2001, Onofre Rojas Santos, Sergio Martins de Souza, Maria Teresa Thomaz, High Temperature Expansion for a Chain Model, 21 th IUPAP International Conference on Statistical Physics, Resumo

2000, Iraziet da Cunha Charret, Eduardo V Silva Corrêa, Sergio Martins de Souza, Maria Teresa Thomaz, Antonio Tavares Costa Jr, Onofre Rojas Santos, Does Takahashi Give the Exact Solution the Grand Potential of the One-Dimensional Hubbard Model?, XXIII Encontro Nacional de Física da Materia Condensada, Resumo

2000, Onofre Rojas Santos, Sergio Martins de Souza, Maria Teresa Thomaz, High Temperature Expansion for a Chain Model, XXI Encontro Nacional de Física de Partículas e Campos, Resumo

1999, Onofre Rojas Santos, Sergio Martins de Souza, Maria Teresa Thomaz, Aplicação da Álgebra de Grassmann a Férmions à Temperatura Finita, X Escola de Verão Jorge André Swieca - Partículas e Campos, Resumo

1999, Onofre Rojas Santos, Sergio Martins de Souza, Maria Teresa Thomaz, Functional Approach without Path Integral to Finite Temperature Free Férmions, XX Encontro Nacional de Física de Partículas e Campos, Resumo

1998, Onofre Rojas Santos, Sergio Martins de Souza, Maria Teresa Thomaz, Modelo Unidimensional de Hubbard Generalizado a Altas Temperaturas, XXI Encontro Nacional de Física da Matéria Condensada, Resumo

1998, Iraziet da Cunha Charret, Eduardo V Corrêa Silva, Onofre Rojas Santos, Sergio Martins de Souza, Maria Teresa Thomaz, C E I Carneiro, Application of Non-Commutative Algebra to a Soluble Fermionic Model, XXI Encontro Nacional de Física da Materia Condensada, Resumo

Participações em Bancas de Cursos (11)

2023, Dissertação de Mestrado COMPORTAMENTO DO EFEITO MAGNETOCALORICO EM COMPOSTOS SEMELHANTES A Cu3 USANDO O MODELO ANTIFERROMAGNETICO DE HEISENBERG EM UMA TRIANGULAR, GILBERTO ARMANDO ANTONIO

2022, Qualificação de Mestrado Correlacoes Quanticas Termicas de um unico eletron em um Ponto Quantico Duplo com Campo Magnetico nao-Homogeneo, VINÍCIUS ALVES LEITÃO

2022, Dissertação de Mestrado Leis de Escala em Sistemas Urbanos, LUCAS MARQUES FAGUNDES SILVA

2021, Qualificação de Mestrado LEIS DE ESCALA EM SISTEMAS URBANOS, LUCAS MARQUES FAGUNDES SILVA

2018, Dissertação de Mestrado FUNCOES DE CORRELACAO PARA A CADEIA DE SPIN-1/2 ISING-XYZNA ESTRUTURA DIAMANTE: EVIDENCIAS ADICIONAIS PARA AS QUASEFASESE PSEUDO-TRANSICOES., ISAAC MARTINS CARVALHO

2016, Dissertação de Mestrado Cadeia Cairo pentagonal geometricamente frustrado com acoplamentos Ising-Heisenberg, Onofre Rojas Santos, Marcelo Leite Lyra, Moises Porfirio Rojas Leyva, Cleverson Filgueiras

2014, Dissertação de Mestrado Cadeia de spin dímero-plaqueta ortogonal com acoplamento Ising- Heisenberg, Maria Teresa Thomaz, Marcelo Leite Lyra, Onofre Rojas Santos

2014, Dissertação de Mestrado Implementação computacional e aplicações em dinâmica populacional do princípio de extensão de Zadeh, Danton Diego Ferreira, Marcelo Ângelo Cirilo, Thelma Safadi, Onofre Rojas Santos

2012, Dissertação de Mestrado Uma nova proposta para a implementação computacional do princípio de extensão de Zadeh, Angela Dayana Barrera de Brito, Tadayuki Yanagi Júnior, Sanderson L. Gonzaga de Oliveira, Onofre Rojas Santos

2010, Dissertação de Mestrado Implementação computacional do princípio de extensão de Zadeh, Samuel Maier Kurcbart, Lucas Monteiro chaves, Onofre Rojas Santos

2008, Dissertação de Mestrado Princípio de extensão de Zadeh aplicado a funções não monótonas com dois parâmetros fuzzy, Samuel Maier Kurcbart, Solange Gomes Faria martins, Yanagi Júnior Tadayuki, Onofre Rojas Santos

Bolsas Obtidas (1)

PESQUISADOR 2, , 01/2014 , 03/2016 ,

Organização de Eventos, Consultorias, Edição e Revisão de Períodicos (2)

2018,, Departamento de Física da UFLA, Nacional,

2016,, UFLA, Nacional,

Orientações de Pós-Graduação (7)

Mestrado, EDUARDO WALLACE BRAGA DE SOUZA, 08/2023 - , Orientação em Andamento

Mestrado, DAIANE MANOELINA LOPES FREITAS, 03/2018 - , Orientação em Andamento

Mestrado, MARCELO HENRIQUE DE ALVARENGA, 08/2016 - 02/2017 , Orientação em Andamento

Mestrado, ISAAC MARTINS CARVALHO, 09/2016 - , Concluída em 07/2018

Mestrado, CLEUDER AUGUSTO BRAGA, 02/2023 - 02/2024 , Orientação em Andamento

Mestrado, CLEUDER AUGUSTO BRAGA, 04/2021 - 07/2022 , Orientação em Andamento

Mestrado, GILBERTO ARMANDO ANTONIO, 03/2021 - , Concluída em 09/2023

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