English
Related papers

Related papers: Quantum magnetism in molecular spin ladders probed…

200 papers

We demonstrate that quantum-critical spin dynamics can be probed in high magnetic fields using muon-spin relaxation ($\mu^{+}$SR). Our model system is the strong-leg spin ladder bis(2,3-dimethylpyridinium) tetrabromocuprate (DIMPY). In the…

Strongly Correlated Electrons · Physics 2017-01-24 J. S. Möller , T. Lancaster , S. J. Blundell , F. L. Pratt , P. J. Baker , F. Xiao , R. C. Williams , W. Hayes , M. M. Turnbull , C. P. Landee

Neutron diffraction is used to investigate the field-induced, antiferromagnetically ordered state in the two-leg spin-ladder material (Hpip)2CuBr4. This "classical" phase, a consequence of weak interladder coupling, is nevertheless highly…

The magnetization, $M(H \leq 30$ T, 0.7 K $\leq T \leq 300$ K), from single crystals and powder samples of (C$_{5}$H$_{12}$N)$_{2}$CuBr$_{4}$ has been used to identify this system as an $S=1/2$ Heisenberg two-leg ladder in the strong…

We present the results of a muon-spin relaxation (muSR) investigation into magnetic ordering in several families of layered quasi-two-dimensional molecular antiferromagnets based on transition metal ions such as S=1/2 Cu2+ bridged with…

We review examples of muon-spin relaxation measurements on molecule-based magnetic coordination polymers, classified by their magnetic dimensionality. These include the one-dimensional s=1/2 spin chain Cu(pyz)(NO3)2 and the two-dimensional…

Strongly Correlated Electrons · Physics 2014-01-17 T. Lancaster , S. J. Blundell , F. L. Pratt

We report the synthesis and the magnetic susceptibility of (pipdH)2Cu1-xZnxBr4, which is a nonmagnetic impurity-doped S=1/2 spin ladder system. The samples were synthesized from a solution by using a slow evaporation method. Samples were…

Materials Science · Physics 2013-07-15 C. Yokoyama , E. Matsuoka , H. Sugawara , T. Sakurai , W. Zhang , S. Okubo , H. Ohta , H. Kikuchi

In the quasi-1D heavy-fermion system YbNi$_4$(P$_{1-x}$As$_x$)$_2$ the presence of a ferromagnetic (FM) quantum critical point (QCP) at $x_c$ $\approx 0.1$ with unconventional quantum critical exponents in the thermodynamic properties has…

Strongly Correlated Electrons · Physics 2017-04-05 R. Sarkar , J. Spehling , P. Materne , H. Luetkens , C. Baines , M. Brando , C. Krellner , H. -H. Klauss

Muon spin relaxation ($\mu$SR) measurements in high transverse magnetic fields ($\parallel \hat c$) revealed strong field-induced quasi-static magnetism in the underdoped and Eu doped (La,Sr)$_{2}$CuO$_{4}$ and…

This paper reports muon spin relaxation (MuSR) measurements of two single crystals of the title high-Tc cuprate systems where static incommensurate magnetism and superconductivity coexist. By zero-field MuSR measurements and subsequent…

The study of novel quantum materials relies on muon-spin rotation, relaxation, or resonance (\mSR) measurements. Yet, a fundamental limitation persists: many of these materials can only be synthesized in extremely small quantities, often at…

We measure by inelastic neutron scattering the spin excitation spectra as a function of applied magnetic field in the quantum spin-ladder material (C5H12N)2CuBr4. Discrete magnon modes at low fields in the quantum disordered phase and at…

We have synthesized and characterized a new spin-1/2 Heisenberg antiferromagnetic ladder: bis 5-iodo-2-aminopyridinium tetrabromocuprate(II) dihydrate. X-ray diffraction studies show the structure of the compound to consist of well isolated…

Condensed Matter · Physics 2009-10-31 C. P. Landee , M. M. Turnbull , C. Galeriu , J. Giantsidis , F. M. Woodward

We report the results of muon-spin spectroscopy ($\mu^+$SR) measurements on the staggered molecular spin chain [pym-Cu(NO$_3$)$_2$(H$_2$O)$_2$] (pym = pyrimidine), a material previously described using sine-Gordon field theory. Zero-field…

Strongly Correlated Electrons · Physics 2021-02-24 B. M. Huddart , M. Gomilšek , T. J. Hicken , F. L. Pratt , S. J. Blundell , P. A. Goddard , S. J. Kaech , J. L. Manson , T. Lancaster

There is growing interest in bismuth-doped silicon (Si:Bi) as an alternative to the well-studied proposals for silicon based quantum information processing (QIP) using phosphorus-doped silicon (Si:P). We focus here on the implications of…

Quantum Physics · Physics 2012-07-05 M. H. Mohammady , G. W. Morley , A. Nazir , T. S. Monteiro

We report muon spin relaxation ($\mu$SR) measurements of optimally-doped and overdoped Bi$_{2+x}$Sr$_{2-x}$CaCu$_2$O$_{8+\delta}$ (Bi2212) single crystals that reveal the presence of a weak temperature-dependent quasi-static internal…

Superconductivity · Physics 2018-02-14 A. Pal , S. R. Dunsiger , K. Akintola , A. C. Y. Fang , A. Elhosary , M. Ishikado , H. Eisaki , J. E. Sonier

Motivated by increasing experimental evidence of exotic magnetism in low-dimensional iron-based materials, we present a comprehensive theoretical analysis of magnetic states of the multiorbital Hubbard ladder in the orbital-selective Mott…

Strongly Correlated Electrons · Physics 2021-07-20 Maksymilian Środa , Elbio Dagotto , Jacek Herbrych

In this short review, we attempt to give a comprehensive discussion of studies performed to date by muon-spin spectroscopy (more precisely the relaxation and rotation technique, also know as \muSR technique) on the recently discovered…

Superconductivity · Physics 2015-05-13 A. Amato , R. Khasanov , H. Luetkens , H. -H. Klauss

We present the results of muon-spin relaxation measurements of spin excitations in the one-dimensional quantum Heisenberg antiferromagnet Cu(pyz)(NO$_{3}$)$_{2}$. Using density-functional theory we propose muon sites and assess the degree…

Strongly Correlated Electrons · Physics 2015-05-20 F. Xiao , J. S. Möller , T. Lancaster , R. C. Williams , F. L. Pratt , S. J. Blundell , D. Ceresoli , A. M. Barton , J. L. Manson

Magnetic properties of a one-dimensional frustrated quantum spin system Rb2Cu2Mo3O12 is investigated by the muon spin relaxation (muSR) technique. Although this system shows an incommensurate spin correlation in neutron scattering, it has…

Strongly Correlated Electrons · Physics 2018-04-04 Seiko Ohira-Kawamura , Keisuke Tomiyasu , Akihiro Koda , Dita P. Sari , Retno Asih , Sungwon Yoon , Isao Watanabe , Kenji Nakajima

We present NMR measurements of a strong-leg spin-1/2 Heisenberg antiferromagnetic ladder compound (C7H10N)2CuBr4 under magnetic fields up to 15 T in the temperature range from 1.2 K down to 50 mK. From the splitting of NMR lines we…

Strongly Correlated Electrons · Physics 2013-09-06 M. Jeong , H. Mayaffre , C. Berthier , D. Schmidiger , A. Zheludev , M. Horvatić
‹ Prev 1 2 3 10 Next ›