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Publications (24)

cond-mat.supr-con2007

Electronic Charge Order in the Pseudogap State of $B i_{2} S r_{2} C a C u_{2} O_{8 + I^´}$

Y. H. Liu, K. Takeyama, T. Kurosawa +3

Scanning tunneling microscopy/spectroscopy is used to examine the $4 a$ $\times$ $4 a$ electronic charge order (CO) in the pseudogap (PG) state above {\it T} $_{c}$ on Bi $_{2}$ Sr$_{…

cond-mat.supr-con2007

Tuning competing orders in La2-xSrxCuO4 cuprate superconductors by the application of an external magnetic field

J. Chang, Ch. Niedermayer, R. Gilardi +13

We report the results of a combined muon spin rotation and neutron scattering study on La2-xSrxCuO4 in the vicinity of the so-called 1/8-anomaly. Application of a magnetic field dr…

cond-mat.supr-con2010

STM/STS study on large pseudogap and nodal superconducting gap in Bi2201(La) and Bi2212

T. Kurosawa, T. Yoneyama, Y. Takano +8

In the present work, scanning tunneling microscopy/spectroscopy (STM/STS) measurements were carried out on underdoped $B i_{2} S r_{2 - x} L a_{x} Cu O_{6 + I^´}$ and $\rm Bi_2Sr_2…

cond-mat.str-el2007

The electronic structure of La $_{1.48}$ Nd $_{0.4}$ Sr $_{0.12}$ CuO $_{4}$ probed by high- and low-energy angle-resolved photoelectron spectroscopy: evolution with probing depth

T. Claesson, M. Mansson, A. Ãnsten +15

We present angle-resolved photoelectron spectroscopy data probing the electronic structure of the Nd-substituted high- $T_{c}$ cuprate La $_{1.48}$ Nd $_{0.4}$ Sr $_{0.12}$ CuO $_{4}$ (Nd-LSCO…

cond-mat.supr-con2013

Glassy low-energy spin fluctuations and anisotropy gap in La1.88Sr0.12CuO4

A. T. RÃ¸mer, J. Chang, N. B. Christensen +13

We present high-resolution triple-axis neutron scattering studies of the high-temperature superconductor La1.88Sr0.12CuO4 (Tc=27 K). The temperature dependence of the low-energy in…

cond-mat.supr-con2008

Direct observation of the coexistence of pseudogap and superconducting quasi-particles in Bi2212 by time-resolved optical spectroscopy

Y. H. Liu, Y. Toda, K. Shimatake +3

We report the ultra-fast optical response of quasi-particles (QPs) in both the pseudogap (PG) and superconducting (SC) states of underdoped (UD) Bi $_{2}$ Sr $_{2}$ CaCu $_{2}$ O$_{8+Î´}…

cond-mat.str-el2007

Nature of the Magnetic Order in the Charge-Ordered Cuprate La $_{1.48}$ Nd $_{0.4}$ Sr $_{0.12}$ CuO $_{4}$

N. B. Christensen, H. M. Ronnow, J. Mesot +7

Using polarized neutron scattering we establish that the magnetic order in La $_{1.48}$ Nd $_{0.4}$ Sr $_{0.12}$ CuO $_{4}$ is either (i) one dimensionally modulated and collinear, consiste…

cond-mat.supr-con2010

Anisotropic quasiparticle scattering rates in slightly underdoped to optimally doped high-temperature \LSCO\ superconductors

J. Chang, M. Shi, S. Pailhes +11

An angle-resolved photoemission study of the scattering rate in the superconducting phase of the high-temperature superconductor \LSCO\ with $x = 0.145$ and $x = 0.17$ , as a function o…

cond-mat.supr-con2004

Electronic Specific Heat of La_{2-x}Sr_{x}CuO_{4}: Pseudogap Formation and Reduction of the Superconducting Condensation Energy

T. Matsuzaki, N. Momono, M. Oda +1

To examine the so-called small pseudogap and the superconducting (SC) condensation energy U(0), the electronic specific heat Cel was measured on La_{2-x}Sr_{x}CuO_{4} up to ~120K.…

cond-mat.supr-con2007

Magnetic-field-induced spin excitations and renormalized spin gap of the underdoped superconductor La $_{1.895}$ Sr $_{0.105}$ CuO $_{4}$

J. Chang, A. P. Schnyder, R. Gilardi +15

High-resolution neutron inelastic scattering experiments in applied magnetic fields have been performed on La $_{1.895}$ Sr $_{0.105}$ CuO $_{4}$ (LSCO). In zero field, the temperature…

cond-mat.supr-con2012

Spin density wave induced disordering of the vortex lattice in superconducting La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$

J. Chang, J. S. White, M. Laver +19

We use small angle neutron scattering to study the superconducting vortex lattice in La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$ as a function of doping and magnetic field. We show that near optimally…

cond-mat.supr-con2003

Unusual interplay between copper-spin and vortex dynamics in slightly overdoped La{1.83}Sr{0.17}CuO{4}

R. Gilardi, A. Hiess, N. Momono +3

Our inelastic neutron scattering experiments of the spin excitations in the slightly overdoped La{1.83}Sr{0.17}CuO{4} compound show that, under the application of a magnetic field…

cond-mat.supr-con2014

Rotated stripe order and its competition with superconductivity in La $_{1.88}$ Sr $_{0.12}$ CuO $_{4}$

V. Thampy, M. P. M. Dean, N. B. Christensen +6

We report the observation of a bulk charge modulation in La $_{1.88}$ Sr $_{0.12}$ CuO $_{4}$ (LSCO) with a characteristic in-plane wave-vector of (0.236, $\pm I^´$ ), with $I^´$ =0.011 r.l.u…

cond-mat.supr-con2012

Ni-impurity effects on the superconducting gap of La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$ studied from the magnetic field and temperature dependence of the electronic specific heat

T. Kurosawa, N. Momono, M. Oda +1

The magnetic field and temperature dependence of the electronic specific heat $C_{el}$ have been systematically investigated in $\rm La_{2-{\it x}}Sr_{\it x}Cu_{1-{\it y}}Ni_{\…

cond-mat.supr-con2008

The coherent {\it d}-wave superconducting gap in underdoped La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$ as studied by angle-resolved photoemission

M. Shi, J. Chang, S. PailhÃ©s +12

We present angle-resolved photoemission spectroscopy (ARPES) data on moderately underdoped La $_{1.855}$ Sr $_{0.145}$ CuO $_{4}$ at temperatures below and above the superconducting trans…

cond-mat.supr-con2002

Energy gap evolution in the tunneling spectra of Bi2Sr2CaCu2O8+d

R. M. Dipasupil, M. Oda, N. Momono +1

On the basis of the tunneling spectra of Bi2212, we report that there exist two kinds of pseudogaps; one with a characteristic energy comparable to the superconducting (SC) gap and…

cond-mat.supr-con2009

Electronic structure near the 1/8-anomaly in La-based cuprates

J. Chang, Y. Sassa, S. Guerrero +13

We report an angle resolved photoemission study of the electronic structure of the pseudogap state in \NdLSCO ( $T_{c} < 7$ K). Two opposite dispersing Fermi arcs are the main result of…

cond-mat.supr-con2006

STM/STS Study on 4a X 4a Electronic Charge Order and Inhomogeneous Pairing Gap in Superconducting Bi2Sr2CaCu2O8+d

A. Hashimoto, N. Momono, M. Oda +1

We performed STM/STS measurements on underdoped Bi2212 crystals with doping levels p ~ 0.11, ~ 0.13 and ~ 0.14 to examine the nature of the nondispersive 4a X 4a charge order in th…

cond-mat.supr-con2014

Bulk charge stripe order competing with superconductivity in La2-xSrxCuO4 (x=0.12)

N. B. Christensen, J. Chang, J. Larsen +9

We present a volume-sensitive high-energy x-ray diffraction study of the underdoped cuprate high temperature superconductor La2-xSrxCuO4 (x = 0.12, Tc=27 K) in applied magnetic fie…

cond-mat.supr-con2014

Field-induced inter-planar correlations in the high-temperature superconductor La1.88Sr0.12CuO4

A. T. Roemer, P. Jensen, H. Jacobsen +14

We present neutron scattering studies of the inter-planar correlations in the high-temperature superconductor La1.88Sr0.12CuO4 (T_c=27 K). The correlations are studied both in a ma…

cond-mat.supr-con2005

STM/STS Study on 4a X 4a Electronic Charge Order of Superconducting Bi2Sr2CaCu2O8+d

N. Momono, A. Hashimoto, Y. Kobatake +2

We performed low-bias STM measurements on underdoped Bi2212 crystals, and confirmed that a two-dimensional (2D) superstructure with a periodicity of four lattice constants (4a) is…

cond-mat.supr-con2006

When low- and high-energy electronic responses meet in cuprate superconductors

J. Chang, S. Pailhes, M. Shi +12

The existence of coherent quasiparticles near the Fermi energy in the low temperature state of high-temperature superconductors has been well established by angle-resolved photoemi…

cond-mat.supr-con2008

Spectroscopic evidence for preformed Cooper pairs in the pseudogap phase of cuprates

M. Shi, A. Bendounan, E. Razzoli +15

Angle-resolved photoemission on underdoped La $_{1.895}$ Sr $_{0.105}$ CuO $_{4}$ reveals that in the pseudogap phase, the dispersion has two branches located above and below the Fermi le…

cond-mat.supr-con2009

Field-induced soft-mode quantum phase transition in La $_{1.855}$ Sr $_{0.145}$ CuO $_{4}$

J. Chang, N. B. Christensen, Ch. Niedermayer +13

Inelastic neutron-scattering experiments on the high-temperature superconductor La $_{1.855}$ Sr $_{0.145}$ CuO $_{4}$ reveal a magnetic excitation gap $I^$ that decreases continuously…

Publications (24)

Electronic Charge Order in the Pseudogap State of Bi2​Sr2​CaCu2​O8+I^´​

Tuning competing orders in La2-xSrxCuO4 cuprate superconductors by the application of an external magnetic field

STM/STS study on large pseudogap and nodal superconducting gap in Bi2201(La) and Bi2212

The electronic structure of La1.48​Nd0.4​Sr0.12​CuO4​ probed by high- and low-energy angle-resolved photoelectron spectroscopy: evolution with probing depth

Glassy low-energy spin fluctuations and anisotropy gap in La1.88Sr0.12CuO4

Direct observation of the coexistence of pseudogap and superconducting quasi-particles in Bi2212 by time-resolved optical spectroscopy

Nature of the Magnetic Order in the Charge-Ordered Cuprate La1.48​Nd0.4​Sr0.12​CuO4​

Anisotropic quasiparticle scattering rates in slightly underdoped to optimally doped high-temperature \LSCO\ superconductors

Electronic Specific Heat of La_{2-x}Sr_{x}CuO_{4}: Pseudogap Formation and Reduction of the Superconducting Condensation Energy

Magnetic-field-induced spin excitations and renormalized spin gap of the underdoped superconductor La1.895​Sr0.105​CuO4​

Spin density wave induced disordering of the vortex lattice in superconducting La2−x​Srx​CuO4​

Unusual interplay between copper-spin and vortex dynamics in slightly overdoped La{1.83}Sr{0.17}CuO{4}

Rotated stripe order and its competition with superconductivity in La1.88​Sr0.12​CuO4​

Ni-impurity effects on the superconducting gap of La2−x​Srx​CuO4​ studied from the magnetic field and temperature dependence of the electronic specific heat

The coherent {\it d}-wave superconducting gap in underdoped La2−x​Srx​CuO4​ as studied by angle-resolved photoemission

Energy gap evolution in the tunneling spectra of Bi2Sr2CaCu2O8+d

Electronic structure near the 1/8-anomaly in La-based cuprates

STM/STS Study on 4a X 4a Electronic Charge Order and Inhomogeneous Pairing Gap in Superconducting Bi2Sr2CaCu2O8+d

Bulk charge stripe order competing with superconductivity in La2-xSrxCuO4 (x=0.12)

Field-induced inter-planar correlations in the high-temperature superconductor La1.88Sr0.12CuO4

STM/STS Study on 4a X 4a Electronic Charge Order of Superconducting Bi2Sr2CaCu2O8+d

When low- and high-energy electronic responses meet in cuprate superconductors

Spectroscopic evidence for preformed Cooper pairs in the pseudogap phase of cuprates

Field-induced soft-mode quantum phase transition in La1.855​Sr0.145​CuO4​

Electronic Charge Order in the Pseudogap State of $B i_{2} S r_{2} C a C u_{2} O_{8 + I^´}$

The electronic structure of La $_{1.48}$ Nd $_{0.4}$ Sr $_{0.12}$ CuO $_{4}$ probed by high- and low-energy angle-resolved photoelectron spectroscopy: evolution with probing depth

Nature of the Magnetic Order in the Charge-Ordered Cuprate La $_{1.48}$ Nd $_{0.4}$ Sr $_{0.12}$ CuO $_{4}$

Magnetic-field-induced spin excitations and renormalized spin gap of the underdoped superconductor La $_{1.895}$ Sr $_{0.105}$ CuO $_{4}$

Spin density wave induced disordering of the vortex lattice in superconducting La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$

Rotated stripe order and its competition with superconductivity in La $_{1.88}$ Sr $_{0.12}$ CuO $_{4}$

Ni-impurity effects on the superconducting gap of La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$ studied from the magnetic field and temperature dependence of the electronic specific heat

The coherent {\it d}-wave superconducting gap in underdoped La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$ as studied by angle-resolved photoemission

Field-induced soft-mode quantum phase transition in La $_{1.855}$ Sr $_{0.145}$ CuO $_{4}$