M. B. Maple
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View article: Biomaterials in 3D Bioprinted Models of Triple-Negative Breast Cancer: A New Era for Precision Medicine
Biomaterials in 3D Bioprinted Models of Triple-Negative Breast Cancer: A New Era for Precision Medicine Open
This chapter provides an in-depth examination of triple-negative breast cancer (TNBC) and explores the potential of 3D bioprinting technologies in advancing TNBC research. It highlights how the combination of innovative biomaterials, coupl…
View article: High-magnetic-field phases in U <sub>1-x</sub> Th <sub>x</sub> Te <sub>2</sub>
High-magnetic-field phases in U <sub>1-x</sub> Th <sub>x</sub> Te <sub>2</sub> Open
At temperatures T much lower than its superconducting critical temperature T c = 2.1 K, the heavy fermion superconductor UTe 2 has a unique phase diagram of magnetic field H vs. φ and θ, angles H is tilted from the b -axis toward the a - a…
View article: Observation of odd-parity superconductivity in UTe <sub>2</sub>
Observation of odd-parity superconductivity in UTe <sub>2</sub> Open
Symmetry properties of the order parameter are among the most fundamental characteristics of a superconductor. UTe 2 , which was found to feature an exceedingly large upper critical field and striking reentrant behavior at low temperatures…
View article: Pressure-induced metallization and loss of surface magnetism in FeSi
Pressure-induced metallization and loss of surface magnetism in FeSi Open
Single-crystalline FeSi samples with a conducting surface state were studied under high pressure and magnetic field by means of electrical resistance measurements to explore how the bulk semiconducting state and the surface state are tuned…
View article: $^{19}$F NMR and defect spins in vacuum-annealed LaO$_{0.5}$F$_{0.5}$BiS$_2$
$^{19}$F NMR and defect spins in vacuum-annealed LaO$_{0.5}$F$_{0.5}$BiS$_2$ Open
We report results of magnetization and $^{19}$F NMR measurements in the normal state of as-grown LaO$_{0.5}$F$_{0.5}$BiS$_2$. The magnetization is dominated by a temperature-independent diamagnetic component and a field- and temperature-de…
View article: Experiments on heavy electron and high T/sub c/ oxide superconductors. [Gd-doped (U,Th)Be/sub 13/; RBa/sub 2/Cu/sub 3/O/sub 7/]
Experiments on heavy electron and high T/sub c/ oxide superconductors. [Gd-doped (U,Th)Be/sub 13/; RBa/sub 2/Cu/sub 3/O/sub 7/] Open
In the first part of this paper, we briefly describe some of our efforts to determine the type of pairing and pairing mechanisms that are associated with the superconductivity of heavy electron materials by means of H/sub c2/(T) measuremen…
View article: UFe/sub 4/P/sub 12/ and CeFe/sub 4/P/sub 12/: non-metallic isotypes of superconducting LaFe/sub 4/P/sub 12/
UFe/sub 4/P/sub 12/ and CeFe/sub 4/P/sub 12/: non-metallic isotypes of superconducting LaFe/sub 4/P/sub 12/ Open
The new compound UFe/sub 4/P/sub 12/, which was found to be isostructural to superconducting LaFe/sub 4/P/sub 12/ and with a lattive constant of 7.7729 A, is a semiconductor and shows ferromagnetic order below 3.15 K. CeFe/sub 4/P/sub 12/ …
View article: Structural transition and uranium valence change in UTe$_2$ at high pressure revealed by x-ray diffraction and spectroscopy
Structural transition and uranium valence change in UTe$_2$ at high pressure revealed by x-ray diffraction and spectroscopy Open
High pressure x-ray diffraction up to 30 GPa and resonant emission x-ray spectroscopy and partial fluorescence yield x-ray absorption spectroscopy up to 52 GPa were used to study how the structural and electronic properties of UTe$_2$ evol…
View article: Possible surface magnetism in the topological Kondo insulator candidate FeSi
Possible surface magnetism in the topological Kondo insulator candidate FeSi Open
Our group has previously reported the existence of a conducting surface state (CSS) in FeSi, a candidate for a d-electron topological Kondo insulator (TKI), at low temperature. In this paper, we present the electrical transport properties …
View article: Observation of odd-parity superconductivity in UTe2
Observation of odd-parity superconductivity in UTe2 Open
Symmetry properties of the order parameter are among the most fundamental characteristics of a superconductor. The pairing symmetry of recently discovered heavy fermion superconductor UTe2 featuring an exceedingly large upper critical fiel…
View article: Vanishing RKKY interactions in Ce-based cage compounds
Vanishing RKKY interactions in Ce-based cage compounds Open
We report the results of thermodynamic measurements in external magnetic field of the cubic Ce-based cage compounds Ce T 2 Cd 20 ( T = Ni,Pd). Our analysis of the heat-capacity data shows that the Γ 7 doublet is the ground state multiplet …
View article: Probing FeSi, a <i>d</i> -electron topological Kondo insulator candidate, with magnetic field, pressure, and microwaves
Probing FeSi, a <i>d</i> -electron topological Kondo insulator candidate, with magnetic field, pressure, and microwaves Open
Recently, evidence for a conducting surface state (CSS) below 19 K was reported for the correlated d -electron small gap semiconductor FeSi. In the work reported herein, the CSS and the bulk phase of FeSi were probed via electrical resisti…
View article: Anisotropy of the T vs. H phase diagram and the HO/LMAFM phase boundary in URu2−xFexSi2
Anisotropy of the T vs. H phase diagram and the HO/LMAFM phase boundary in URu2−xFexSi2 Open
The correlated f -electron compound URu 2 Si 2 exhibits superconductivity (SC) with a critical temperature T c = 1.5 K that coexists with the “hidden order” (HO) phase that forms below a characteristic temperature T 0 = 17.5 K. The SC of U…
View article: Pressure-induced shift of effective Ce valence, Fermi energy and phase boundaries in CeOs<sub>4</sub>Sb<sub>12</sub>
Pressure-induced shift of effective Ce valence, Fermi energy and phase boundaries in CeOs<sub>4</sub>Sb<sub>12</sub> Open
CeOs 4 Sb 12 , a member of the skutterudite family, has an unusual semimetallic low-temperature -phase that inhabits a wedge-like area of the field H —temperature T phase diagram. We have conducted measurements of electrical transport a…
View article: Global perspectives of the bulk electronic structure of URu<sub>2</sub>Si<sub>2</sub> from angle-resolved photoemission
Global perspectives of the bulk electronic structure of URu<sub>2</sub>Si<sub>2</sub> from angle-resolved photoemission Open
Previous high-resolution angle-resolved photoemission (ARPES) studies of URu 2 Si 2 have characterized the temperature-dependent behavior of narrow-band states close to the Fermi level ( E F ) at low photon energies near the zone center, w…
View article: Heat capacity of URu$_{2-x}$Os$_x$Si$_2$ at low temperatures
Heat capacity of URu$_{2-x}$Os$_x$Si$_2$ at low temperatures Open
We perform measurements of the heat capacity as a function of temperature in URu$_{2-x}$Os$_x$Si$_2$ alloys. Our experimental results show that the critical temperature of the second-order phase transition increases while the value of the …
View article: Resonance from antiferromagnetic spin fluctuations for spin-triplet superconductivity in UTe$_2$
Resonance from antiferromagnetic spin fluctuations for spin-triplet superconductivity in UTe$_2$ Open
Superconductivity has its universal origin in the formation of bound (Cooper) pairs of electrons that can move through the lattice without resistance below the superconducting transition temperature Tc[1]. While electron Cooper pairs in mo…
View article: Isoelectronic perturbations to <i>f</i> - <i>d</i> -electron hybridization and the enhancement of hidden order in URu <sub>2</sub> Si <sub>2</sub>
Isoelectronic perturbations to <i>f</i> - <i>d</i> -electron hybridization and the enhancement of hidden order in URu <sub>2</sub> Si <sub>2</sub> Open
Significance Phase transitions often manifest themselves in characteristic signatures in the electrical resistivity. Here, we track the temperature increase of the resistive signature of the hidden-order (HO) phase transition in URu 2 Si 2…
View article: Harry Suhl
Harry Suhl Open
Harry Suhl, who made seminal contributions to condensed-matter physics and was among the founding faculty at the University of California, San Diego, died on 3 March 2020 after an enviably long, happy, and productive life. He was also well…
View article: From antiferromagnetic and hidden order to Pauli paramagnetism in U <i>M</i> <sub>2</sub> Si <sub>2</sub> compounds with 5 <i>f</i> electron duality
From antiferromagnetic and hidden order to Pauli paramagnetism in U <i>M</i> <sub>2</sub> Si <sub>2</sub> compounds with 5 <i>f</i> electron duality Open
Significance The interplay of band-formation and electron-correlation effects in uranium heavy fermion compounds is the subject of an ongoing debate. Here unexpected insight has been gained from advanced spectroscopies on isostructural mem…
View article: Evolution of the Kondo lattice electronic structure above the transport coherence temperature
Evolution of the Kondo lattice electronic structure above the transport coherence temperature Open
Significance The temperature ( )-dependent evolution of the Kondo lattice electronic structure is a long-standing topic of theoretical and experimental investigation, still lacking a truly microscopic theory that agrees with a full exper…
View article: Evolution of non-Kramers Doublets in Magnetic Field PrNi$_2$Cd$_{20}$ and PrPd$_2$Cd$_{20}$
Evolution of non-Kramers Doublets in Magnetic Field PrNi$_2$Cd$_{20}$ and PrPd$_2$Cd$_{20}$ Open
Praseodymium-based 1-2-20 cage compounds Pr$T_2X_{20}$ ($T$ is generally Ti, V, Nb, Ru, Rh, Ir; and $X$ is either Al, Zn or Cd) provide yet another platform to study non-trivial electronic states of matter ranging from topological and magn…
View article: Non-Kramers doublets and quest for the 'hidden-order' state in PrNi$_2$Cd$_{20}$ and PrPd$_2$Cd$_{20}$
Non-Kramers doublets and quest for the 'hidden-order' state in PrNi$_2$Cd$_{20}$ and PrPd$_2$Cd$_{20}$ Open
Praseodymium-based 1-2-20 cage compounds Pr$T_2X_{20}$ ($T$ is generally Ti, V, Nb, Ru, Rh, Ir; and $X$ is either Al, Zn or Cd) provide yet another platform to study non-trivial electronic states of matter ranging from topological and magn…
View article: Non-Kramers doublets in PrNi$_2$Cd$_{20}$ and PrPd$_2$Cd$_{20}$
Non-Kramers doublets in PrNi$_2$Cd$_{20}$ and PrPd$_2$Cd$_{20}$ Open
Praseodymium-based 1-2-20 cage compounds Pr$T_2X_{20}$ ($T$ is generally Ti, V, Nb, Ru, Rh, Ir; and $X$ is either Al, Zn or Cd) provide yet another platform to study non-trivial electronic states of matter ranging from topological and magn…
View article: Impact of Fe substitution on the electronic structure of URu$_2$Si$_2$
Impact of Fe substitution on the electronic structure of URu$_2$Si$_2$ Open
The application of pressure as well as the successive substitution of Ru with Fe in the hidden order (HO) compound URu$_2$Si$_2$ leads to the formation of the large moment antiferromagnetic phase (LMAFM). Here we have investigated the subs…
View article: Ungapped magnetic excitations beyond Hidden Order in URu<sub>2−<i>x</i></sub>Re<i><sub>x</sub></i>Si<sub>2</sub>
Ungapped magnetic excitations beyond Hidden Order in URu<sub>2−<i>x</i></sub>Re<i><sub>x</sub></i>Si<sub>2</sub> Open
We use inelastic neutron scattering measurements to show that the energy gap in the magnetic excitations of URu$_2$Si$_2$, induced by the Hidden Order transition, is closed by Re substitution. The magnetic excitations remain ungapped in co…
View article: Direct measurement of temporal correlations above the spin-glass transition by coherent resonant magnetic x-ray spectroscopy
Direct measurement of temporal correlations above the spin-glass transition by coherent resonant magnetic x-ray spectroscopy Open
In the 1970s a new paradigm was introduced that interacting quenched systems, such as a spin-glass, have a phase transition in which long time memory of spatial patterns is realized without spatial correlations. The principal methods to st…