Výsledky vyhľadávania
Názov Realization of a spin-1/2 spatially anisotropic square lattice in a quasi-two-dimensional quantum antiferromagnet Cu(en)(H2O)(2)SO4 Aut.údaje Lívia Lederová ... [et al.] Autor Lederová Lívia (12%)
Spoluautori Orendáčová Alžbeta (15%)
Chovan Jaroslav 1972- (12%) UMBFP06 - Katedra fyziky
Strečka Jozef (12%)
Verkholyak (5%)
Tarasenko Robert (5%)
Legut Dominik (12%)
Sýkora Rudolf (5%)
Čižmár Erik (7%)
Tkáč Vladimír (5%)
Orendáč Martin (5%)
Feher Alexander (5%)
Zdroj.dok. Physical Review B. Vol. 95, no. 5 (2017), pp. [1-2]. - Maryland : American Physical Society, 2017 Kľúč.slová quasi-two-dimensional quantum antiferromagnet square lattice two-dimensional lattice space magnetic anisotropy Jazyk dok. angličtina Krajina Spojené štáty Systematika 53 Anotácia Theoretical and experimental studies of a quasi-two-dimensional quantum antiferromagnet Cu(en)(H2O)(2)SO4 (en = C2H8N2) were performed. ab initio calculations of exchange interactions confirmed that the system represents a realization of a spatially anisotropic zigzag square lattice. Corresponding quantum Monte Carlo calculations of thermodynamic quantities were realized and the results were applied in the analysis of experimental susceptibility, magnetization, and specific heat studied at temperatures ranging from nominally 300 mK up to 8 K and magnetic fields up to 14 T. The analysis of experimental results provided the estimates of intralayer exchange couplings, J/k(B) = 3.5 +/- 0.2 K and J (1) = 0.35 J. Theoretical analysis of spin symmetries in Cu( en)( H2O) 2SO4 structure predicted the presence of symmetric exchange anisotropies (out- of plane and in-plane spin anisotropy) and a spin-flop transition within the easy plane induced by the magnetic field applied along the easy axis. Isothermal magnetization measurements indicated the expected transition in the field 200 mT applied along the b axis which was finally identified as the easy axis lying within the easy plane bc. Magnetic phase diagrams with saturation fields about 6.5 T show nearly identical behavior in all studied directions. Differences appear only in weak magnetic fields as a result of the presence of weak exchange anisotropies approximate to 10(-3) J. The present analysis suggests that Cu( en)( H2O) 2SO4 can be a model system for exploring the interplay of quantum fluctuations, exchange anisotropies, and magnetic field in the two-dimensional lattice space. Kategória publikačnej činnosti ADC Číslo archívnej kópie 39341 Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Physical Review B Vyd.údaje Maryland : American Physical Society , 2017 ISSN 2469-99502469-9969 Form.deskr. časopisy - journals Roč., číslo Vol. 95 no. 5 (2017) Jazyk dok. angličtina Krajina Spojené štáty URL Link na zdrojový dokument Kategória publikačnej činnosti GII Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy - PERIODIKÁ - Súborný záznam periodika (1) - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika ČLÁNKY 2017: Realization of a spin-1/2 spatially anisotropic square lattice in a quasi-two-dimensional quantum antiferromagnet CuSO4 Názov Physical Review B Vyd.údaje Maryland : American Physical Society , 2013 ISSN 2469-99502469-9969 Form.deskr. časopisy - journals Roč., číslo Vol. 88 no. 6 (2013) Jazyk dok. angličtina Krajina Spojené štáty URL Link na zdrojový dokument Kategória publikačnej činnosti GII Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy - PERIODIKÁ - Súborný záznam periodika (1) - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika ČLÁNKY 2013: Field-induced phase transitions in the helimagnet Ba2CuGe2O7 Názov Field-induced phase transitions in the helimagnet Ba2CuGe2O7 Aut.údaje J. Chovan, M. Mader, N. Papanicolaou Autor Chovan Jaroslav 1972- (60%) UMBFP06 - Katedra fyziky
Spoluautori Marder Michael (20%)
Papanicolaou Nikos (20%)
Zdroj.dok. Physical Review B. Vol. 88, no. 6 (2013), pp. [1-15]. - Maryland : American Physical Society, 2013 Kľúč.slová magnetic fields helimagnetism field-induced phase Jazyk dok. angličtina Krajina Spojené štáty Systematika 53 Kategória publikačnej činnosti ADC Číslo archívnej kópie 27638 Kategória ohlasu NATH, R. - RANJITH, K.M. - SICHELSCHMIDT, J. et al. Hindered magnetic order from mixed dimensionalities in CuP2O6. In Physical review B. ISSN 1098-0121, 2014, vol. 89, no. 1, article no. 014407.
NUCARA, A. - MOHAMED, W.S. - BALDASSARRE, L. et al. Infrared phonon spectrum of the tetragonal helimagnet Ba2CuGe2O7. In Physical review B. ISSN 1098-0121, 2014, vol. 90, no. 1, article no. 014304.
CAPITANI, F. - KOVAL, S. - FITTIPALDI, R. et al. Raman phonon spectrum of the Dzyaloshinskii-Moriya helimagnet Ba2CuGe2O7. In Physical review B. ISSN 1098-0121, 2015, vol. 91, no. 21, article no. 214308.
MUEHLBAUER, S. - KINDERVATER, J. - HAESSLER, W. Static and quasielastic properties of the spiral magnet Ba2CuGe2O7 studied by neutron resonance spin echo spectroscopy and neutron Larmor labeling. In Physical review B. ISSN 1098-0121, 2015, vol. 92, no. 22, article no. 224406.
LOH, G. C. - KHOO, K. H. - GAN, C. K. Helimagnetic order in bulk MnSi and CoSi/MnSi superlattices. In Journal of magnetism and magnetic materials. ISSN 0304-8853, 2017, vol. 421, pp. 31-38.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Physical Review B Podnázov covering condensed matter and materials physics Vyd.údaje Maryland : American Physical Society , 2008 ISSN 2469-99502469-9969 Form.deskr. časopisy - journals Roč., číslo Vol. 78 no. 4 (2008) Jazyk dok. angličtina Krajina Spojené štáty URL Link na zdrojový dokument Kategória publikačnej činnosti GII Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy - PERIODIKÁ - Súborný záznam periodika (1) - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika ČLÁNKY 2008: Controlling the interactions between polaritons and molecular vibrations in strongly coupled organic semiconductor microcavities Názov Physical Review B Vyd.údaje Maryland : American Physical Society , 2008 ISSN 2469-99502469-9969 Form.deskr. časopisy - journals Roč., číslo Vol. 77 no. 8 (2008) Jazyk dok. angličtina Krajina Spojené štáty URL Link na zdrojový dokument Kategória publikačnej činnosti GII Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy - PERIODIKÁ - Súborný záznam periodika (1) - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika ČLÁNKY 2008: Femtosecond control of the magnetization in ferromagnetic semiconductors Názov Femtosecond control of the magnetization in ferromagnetic semiconductors Súbež.n. Femtosekundová kontrola megnetizácie v magnetických polovodičoch Aut.údaje Jaroslav Chovan, Ilias E. Perakis Autor Chovan Jaroslav 1972- (80%) UMBFP06 - Katedra fyziky
Spoluautori Perakis Ilias E. (20%)
Zdroj.dok. Physical Review B. Vol. 77, no. 8 (2008), pp. 1-16. - Maryland : American Physical Society, 2008 Kľúč.slová magneto-optické javy ultrarýchla spektroskopia kvantová optika magneto-optical effects ultrafast spectroscopy quantum optics transient effects Jazyk dok. angličtina Krajina Spojené štáty Systematika 53 Kategória publikačnej činnosti ADC Číslo archívnej kópie 26254 Kategória ohlasu YILDIRIM, M. - MARCH, S. - MATHEW, R. et al. Interband dephasing and photon echo response in GaMnAs. In Applied physics letters. ISSN 0003-6951, 2012, vol. 101, no. 6, article no. 062403.
KIRILYUK, Andrei - KIMEL, Alexey V. - RASING, Theo. Ultrafast optical manipulation of magnetic order. In Reviews of modern physics. ISSN 0034-6861, 2010, vol. 82, no. 3, pp. 2731-2784.
WU, M.W. - JIANG, J.H. - WENG, M.Q. Spin dynamics in semiconductors. In Physics reports-review section of physics letters. ISSN 0370-1573, 2010, vol. 493, no. 2-4, pp. 61-236.
ZHANG, G.P. Laser-induced orbital and spin excitations in ferromagnets : insights from a two-level system. In Physical review letters. ISSN 0031-9007, 2008, vol. 101, no. 18, article no. 187203.
YONEMITSU, Kenji - NASU, Keiichiro. Theory of photoinduced phase transitions in itinerant electron systems. In Physics reports-review section of physics letters. ISSN 0370-1573, 2008, vol. 465, no. 1, pp. 1-60.
HINSCHBERGER, Y. - HERVIEUX, P.A. Classical modeling of ultrafast coherent magneto-optical experiments. In Physical review B. ISSN 1098-0121, 2013, vol. 88, no. 13, article no. 134413.
BARAL, Alexander - VOLLMAR, Svenja - SCHNEIDER, Hans Christian. Magnetization dynamics and damping due to electron-phonon scattering in a ferrimagnetic exchange model. In Physical review B. ISSN 1098-0121, 2014, vol. 90, no. 1, article no. 014427.
HINSCHBERGER, Y. - HERVIEUX, P.A. Modeling of coherent ultrafast magneto-optical experiments : light-induced molecular mean-field model. In Journal of applied physics. ISSN 0021-8979, 2015, vol. 118, no. 24, article no. 243902.
LI, Hang - ZHANG, Xinhui - LIU, Xinyu - FURDYNA, Jacek K. Dynamic phase reversal of photo-induced precession of magnetization in ferromagnetic (Ga,Mn) As thin film. In Solid state communications. ISSN 0038-1098, 2015, vol. 221, pp. 45-49.
LI HANG - ZHANG XIN-HUI. Evaluation of the ultrafast thermal manipulation of magnetization precession in ferromagnetic semiconductor (Ga,Mn) As. In CHinese physics letters. ISSN 0256-307X, 2015, vol. 32, no. 6, article no. 067501.
ZHAO, Haibin. Photo-induced spin dynamics in spintronic materials. In Advances in condensed matter optics [online]. Hawthorne : De Gruyter, 2015, pp. 138-190 [cit. 2017-05-23]. ISBN 978-3-11-030702-3. Dostupné na: https://books.google.sk/books?id=CCh1BgAAQBAJ&pg=PA187&lpg=PA187&dq=%22photoinduced+spin+dynamics+in+spintronic+materials%22&source=bl&ots=YQXtL0Tpte&sig=reNuJX2SoWatafsKA82hNVfoUPc&hl=sk&sa=X&ved=0ahUKEwiajYyey4XUAhVCSBQKHZxyC7sQ6AEIIDAA#v=onepage&q=%22photoinduced%20spin%20dynamics%20in%20spintronic%20materials%22&f=false
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Controlling the interactions between polaritons and molecular vibrations in strongly coupled organic semiconductor microcavities Súbež.n. Kontrola interakcií medzi polaritónmi a molekulárnymi vibráciami v silne interagujúcich organických polovodičoch a nanoštruktúrach Aut.údaje Jaroslav Chovan ... [et al.] Autor Chovan Jaroslav 1972- (35%) UMBFP06 - Katedra fyziky
Spoluautori Perakis Ilias E. (16%)
Ceccarelli Samira (35%)
Lidzey David G. (15%)
Zdroj.dok. Physical Review B : covering condensed matter and materials physics. Vol. 78, no. 4 (2008), pp. 5320-5320. - Maryland : American Physical Society, 2008 Kľúč.slová polaritóny organické systémy polyméry - polymers polaritons organické zlúčeniny - organic compounds Jazyk dok. angličtina Krajina Spojené štáty Systematika 53 Kategória publikačnej činnosti ADC Číslo archívnej kópie 26255 Kategória ohlasu RIBIERRE, J. C. - SATO, M. - ISHIZUKA, A. et al. Organic field-effect transistors based on J-aggregate thin films of a bisazomethine dye. In Organic electronics. ISSN 1566-1199, 2012, vol. 13, no. 6, pp. 999-1003.
AGRANOVICH, V. M. - GARTSTEIN, Yu. N. - LITINSKAYA, M. Hybrid resonant organic inorganic nanostructures for optoelectronic applications. In Chemical reviews. ISSN 0009-2665, 2011, vol. 111, no. 9, pp. 5179-5214.
LODDEN, Grant H. - HOLMES, Russell J. Thermally activated population of microcavity polariton states under optical and electrical excitation. In Physical review B. ISSN 1098-0121, 2011, vol. 83, no. 7, article no. 075301.
MICHETTI, Paolo - LA ROCCA, G. C. Polariton-polariton scattering in organic microcavities at high excitation densities. In Physical review B. ISSN 1098-0121, 2010, vol. 82, no. 11, article no. 115327.
BRADLEY, M. Scott - BULOVIC, Vladimir. Intracavity optical pumping of J-aggregate microcavity exciton polaritons. In Physical review B. ISSN 1098-0121, 2010, vol. 82, no. 3, article no. 033305.
TAVAZZI, Silvia - SILVESTRI, Leonardo - MIOZZO, Luciano et al. Polarized absorption, spontaneous and stimulated blue light emission of J-type tetraphenylbutadiene monocrystals. In Chemphyschem. ISSN 1439-4235, 2010, vol. 11, no. 2, pp. 429-434.
HAKALA, T. K. - TOPPARI, J. J. - KUZYK, A. et al. Vacuum rabi splitting and strong-coupling dynamics for surface-plasmon polaritons and rhodamine 6G molecules. In Physical review letters. ISSN 0031-9007, 2009, vol. 103, no. 5, article no. 053602.
MICHETTI, Paolo - LA ROCCA, Giuseppe C. Exciton-phonon scattering and photoexcitation dynamics in J-aggregate microcavities. In Physical review B. ISSN 1098-0121, 2009, vol. 79, no. 3, article no. 035325.
LIU, Feng - ZHAN, Tianrong - ZHU, Alexander Y. - YI, Fei - SHI, Wangzhou. Band structure and dispersion engineering of strongly coupled plasmon-phonon-polaritons in graphene-integrated structures. In Optics express. ISSN 1094-4087, 2016, vol. 24, no. 2, pp. 1480-1494.
ZASTER, Svitlana - BITTNER, Eric R. Role of dark excitations in the nonequilibrium condensation of exciton polaritons in optically-pumped organic single crystal microcavities. In International journal of modern physics B. ISSN 0217-9792, 2015, vol. 29, no. 22, article no. 1550157.
TORMA, P. - BARNES, W. L. Strong coupling between surface plasmon polaritons and emitters: a review. In Reports on progress in physics. ISSN 0034-4885, 2015, vol. 78, no. 1, article no. 013901.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Physical Review B Podnázov covering condensed matter and materials physics Vyd.údaje Maryland : American Physical Society , 2002 ISSN 2469-99502469-9969 Form.deskr. časopisy - journals Roč., číslo Vol. 65 no. 6 (2002) Jazyk dok. angličtina Krajina Spojené štáty URL Link na zdrojový dokument Kategória publikačnej činnosti GII Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy - PERIODIKÁ - Súborný záznam periodika (1) - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika ČLÁNKY 2002: Intermediate phase in the spiral antiferromagnert Ba2CuGe2O7 Názov Intermediate phase in the spiral antiferromagnert Ba2CuGe2O7 Súbež.n. Intermediálna fáza v špirálnom antiferromagnete Ba2CuGe2O7 Aut.údaje Jaroslav Chovan, Nikos Papanicolaou, Stavros Komineas Autor Chovan Jaroslav 1972- (40%) UMBFP06 - Katedra fyziky
Spoluautori Papanicolaou Nikos (40%)
Komineas Stavros (20%)
Zdroj.dok. Physical Review B : covering condensed matter and materials physics. Vol. 65, no. 6 (2002), pp. [1-15]. - Maryland : American Physical Society, 2002 Kľúč.slová spinové vlny magnetická anizotropia magnetické fázové prechody spin waves magnetic anisotropy magnetic phase transitions Jazyk dok. angličtina Krajina Spojené štáty Systematika 53 Kategória publikačnej činnosti ADC Číslo archívnej kópie 26258 Kategória ohlasu MUEHLBAUER, S. - GVASALIYA, S. - RESSOUCHE, E. et al. Phase diagram of the Dzyaloshinskii-Moriya helimagnet Ba2CuGe2O7 in canted magnetic fields. In Physical review B. ISSN 1098-0121, 2012, vol. 86, no. 2, article no. 024417.
HEIDE, Marcus - BIHLMAYER, Gustav - BLUEGEL, Stefan. Non-Planar Dzyaloshinskii spirals and magnetic domain walls in non-centrosymmetric systems with orthorhombic anisotropy. In Journal of nanoscience and nanotechnology. ISSN 1533-4880, 2011, vol. 11, no. 4, pp. 3005-3015.
AN, R. - WANG, X.P. - ZHOU, L. Spin-dynamics simulation study of the field-induced phase transition for the spiral antiferromagnet Ba2CuGe2O7. In Physical review B. ISSN 1098-0121, 2005, vol. 72, no. 21, article no. 214422.
KIRKPATRICK, T.R. - BELITZ, D. Nonanalytic corrections to Fermi-liquid behavior in helimagnets. In Physical review B. ISSN 1098-0121, 2005, vol. 72, no. 18, article no. 18402.
KHARCHENKO, Y.N. - KHARCHENO, N.F. - BARAN, M. - SZYMCZAK, R. Weak ferromagnetism and an intermediate incommensurate antiferromagnetic phase in LiNiPO4. In Low temperature physics. ISSN 1063-777X, 2003, vol. 29, no. 7, pp. 579-583.
ZHELUDEV, A. - SATO, T. - MASUDA, T. et al. Spin waves and the origin of commensurate magnetism in Ba2CoGe2O7. In Physical revieew B. ISSN 1098-0121, 2003, vol. 68, no. 2, article no. 024428.
BOGDANOV, A.N. - ROSSLER, U.K. - WOLF, M. - MULLER, K.H. Magnetic structures and reorientation transitions in noncentrosymmetric uniaxial antiferromagnets. In Physical review B. ISSN 1098-0121, 2002, vol. 66, no. 21, article no. 214410.
AXENIDES, M. - FLORATOS, E.G. - PERIVOLAROPOULOS, L. Quadrupole instabilities of relativistic rotating membranes. In Physical review D. ISSN 0556-2821, 2001, vol. 64, no. 10, pp. [1-4].
NATH, R. - RANJITH, K.M. - SICHELSCHMIDT, J. et al. Hindered magnetic order from mixed dimensionalities in CuP2O6. In Physical review B. ISSN 1098-0121, 2014, vol. 89, article no. 014407.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika