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A µSR study of unconventional spin fluctuation mediated superconductivity in ...
One of us has recently found experimental evidence for unconventional superconductivity in a newly synthesized three-dimensional nearly antiferromagnetic metal, LaAg1−xMnx... -
Probing the superconducting state of the non-centrosymmetric Heusler supercon...
Recently, superconductivity has been discovered in a number of materials whose lattices lack inversion symmetry, with important implications for the symmetry of the... -
The Neutron Scattering Spin Resonance: A probe of the momentum structure of t...
We propose to use MERLIN to examine the full magnetic excitation spectrum Chi¿(q,w) of optimally doped Fe based superconductor BaFe1.84Co0.16As2. The primary goal of this... -
High energy spin excitation in superconducting Rb0.8Fe1.68Se2
Superconductivity (SC) in unconventional superconductors is believed to be related to magnetism. However, in AyFe1.6+xSe2 (A = K, Rb, Cs) system discovered in late 2010, the SC... -
Coexistence of Superconductivity and Magnetism in Thin Films
We have recently used a combination of PNR and low energy muon spin rotation (LEM) to detect the coexistence of an induced SDW and superconductivity in the superconducting layer... -
The study of spin excitations in superconducting LiFeAs
The spin excitations in superconducting LiFeAs have been found evolved from incommensurate peaks to commensurate peak at low energy. But the spin resonance is still not clear in... -
Time reversal symmetry breaking in superconducting PrOs4Sb12 and its alloys
In 2005 we carried out muon spin relaxation (muSR) experiments in Pr(Os1-xRux)4Sb12 alloys at KEK, Tsukuba, Japan, to investigate the time-reversal symmetry breaking found in... -
Probing the nature of pairing in superconducting LiFeAs
The iron-based superconductor LiFeAs exhibits a number of unique features distinguishing it from other materials in its class. As yet, these differences are unexplained. This... -
A µSR study of the charge density wave superconductor CuxTiSe2.
Superconductivity and the charge density wave (CDW) are two very different cooperative electronic phenomena. However, both occur because of Fermi surface instabilities and... -
Search for magnetic resonance in the superconducting state of Mo3Sb7
The intermetallic Mo3Sb7 compound exhibits superconductivity at Tc=2 K and exhibits interesting physical properties in the magnetic susceptibility, electrical resistivity and... -
Probing the superconducting ground state of the Heusler superconductors
This proposal plans to investigate the superconducting ground state of the Heusler superconductors with a superconducting transition of ~2K. Heusler compounds have attracted a... -
An investigation of the superconducting ground state in the non-centrosymmetr...
In this proposal we propose to investigate the superconducting ground state of the non-centrosymmetric superconductor Ru7B3. Controversy exists over the nature of the... -
Structures of the superconducting metal/ammonia intercalates of FeSe
We will use POLARIS to determine the structures of the high temperature superconducting intercalates obtained by the reactions between FeSe and deuterated ammonia solutions... -
Completing the magnetic ordering-crystal structure phase diagram of supercond...
We would like to complete the phase diagram by measuring one more sample of Fe1+xTe for x = 14 %, which represents a point at one extreme of the phase diagram. The simple binary... -
Structure of beta-Mo2N in the normal and superconducting states; an in-situ r...
A recent experiment (RB820171) unexpectedly revealed that a sample of beta-Mo2N exhibited a number of extra reflections at 4 K; a temperature below the superconducting critical... -
Superconductivity induced changes in the ferromangetic order of Y(1-x)PrxBa2C...
By polarized neutron reflectometry we want to investigate the magnetic field profile in Y(1-x)PrxBa2Cu3O7/La(2/3)Ca(1/3)MnO3 high-Tc superconductor/ferromagnet superlattices. In... -
Probing the superconducting ground state of the centrosymmetric superconducto...
This proposal plans to investigate the superconducting ground state of LaNiGa2 which is a centrosymmetric superconductor with a superconducting transition of ~2K. Heat capacity... -
Spin excitations in the superconducting FeTe0.6Se0.4
The FeTe1-xSex series exhibits superconductivity over a broad range of doping. Previously we have made extensive neutron scattering measurements on superconducting x = 0.49 and... -
Probing the superconducting ground state of the Heusler superconductors
This proposal plans to investigate the superconducting ground state of the Heusler superconductors with a superconducting transition of ~2K. Heusler compounds have attracted a... -
Influence of the cation disorder on the magnetic properties of underdoped cup...
We want to isolate the effects of doping, charge localization and local distortion on the transition from insulating antiferromagnet to superconducting metal in YBCO. We choose...